Puncture outfit

Abstract

The utility model discloses a puncture outfit, which relates to the technical field of medical apparatus and instruments, and comprises a catheter with a puncture end, an operation channel and a flushing channel are arranged in the catheter, the operation channel and the flushing channel are parallel to each other and are arranged at an interval, and the operation channel and the flushing channel penetrate to the puncture end. According to the technical scheme provided by the utility model, the structure of the puncture outfit is improved, so that the lens can be flushed in a human body, the operation is simplified, and the operation time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a puncture device. Background Technology

[0002] During surgery, an endoscope is inserted into the body through a catheter and illuminated by a light source at its tip, allowing the camera to capture clear images. However, in practice, the endoscope lens is easily contaminated by blood and bodily fluids, leading to decreased image quality and affecting the surgeon's observation of the surgical area. Currently, the main method to address this issue is to temporarily interrupt the procedure, withdraw the endoscope from the patient, clean it externally, and then reinsert it. While effective, frequently repeating this step not only prolongs the overall surgical time and increases the risk of infection but also imposes an additional workload on medical staff. Utility Model Content

[0003] The main purpose of this invention is to provide a puncture device designed to facilitate the cleaning of endoscopes.

[0004] To achieve the above objectives, this utility model proposes a puncture device, comprising:

[0005] A catheter has a puncture end, and an operating channel and a flushing channel are provided inside the catheter, which are parallel to and spaced apart from the operating channel. The operating channel and the flushing channel extend to the puncture end.

[0006] In one embodiment, the operating channel is offset from the axis of the conduit, and the offset direction is away from the flushing channel.

[0007] In one embodiment, the flushing channel is integrally formed on the conduit.

[0008] In one embodiment, the catheter has an inlet at one end away from the puncture end, the inlet being in communication with the flushing channel, and the puncture device further includes a drainage tube connected to the inlet.

[0009] In one embodiment, the drainage tube is flexibly configured.

[0010] In one embodiment, a check valve is provided at the end of the drainage tube away from the inlet, and the check valve is unidirectionally open towards the inlet.

[0011] In one embodiment, the check valve includes:

[0012] The mounting base has a liquid outlet and a liquid inlet. The mounting base has a receiving cavity inside. The liquid outlet and the liquid inlet are connected to the opposite ends of the receiving cavity. The drainage tube is connected to the liquid outlet.

[0013] An outer cone portion is disposed within the accommodating cavity, and an inlet hole communicating with the liquid outlet end is provided on the outer side wall of the outer cone portion;

[0014] An elastic seal is disposed within the accommodating cavity. One end of the elastic seal is recessed to form an inner cone portion, and the other end is provided with an air inlet communicating with the inner cone portion. The inner cone portion abuts against the outer cone portion, and the air inlet is connected to the liquid inlet end.

[0015] In one embodiment, a plurality of liquid inlet holes are provided, and the plurality of liquid inlet holes are spaced apart around the axis of the outer cone portion.

[0016] In one embodiment, the resilient seal includes:

[0017] The first ring portion is provided with the inner cone portion;

[0018] The second ring is located on the side of the first ring near the Luer interface and slides with the accommodating cavity. The air inlet is located in the second ring, and the outer diameter of the first ring is smaller than the outer diameter of the first ring.

[0019] In this utility model, a flushing channel is provided on the catheter parallel to the operating channel, and the flushing channel extends through the puncture end of the catheter. Thus, when the endoscope needs to be cleaned, the endoscope is simply adjusted inside the body to face the flushing channel, and water or air is injected into the flushing channel to clean the endoscope. This process does not require removing the endoscope from the body, reducing the complexity of cleaning, shortening the operation time, and also reducing the risk of infection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A cross-sectional structural diagram of the puncture device provided by this utility model;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 A schematic diagram of the structure of the elastic seal in the puncture device provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Conduit; 110. Operating channel; 120. Flushing channel; 200. Drainage tube; 300. Check valve; 310. Mounting base; 311. Liquid outlet; 312. Liquid inlet; 313. Receptacle; 320. Outer cone; 321. Liquid inlet hole; 330. Elastic seal; 331. Inner cone; 332. Air inlet; 333. First ring; 334. Second ring.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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 scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] To facilitate the cleaning of the endoscope, this technical solution proposes a puncture device, comprising:

[0031] The catheter 100 has a puncture end, and the catheter 100 is provided with an operation channel 110 and a flushing channel 120 that is parallel to and spaced apart from the operation channel 110. The operation channel 110 and the flushing channel 120 extend to the puncture end.

[0032] In this utility model, a flushing channel 120 is provided on the catheter 100, parallel to the operating channel 110, and the flushing channel 120 extends to the puncture end of the catheter 100. Thus, when the endoscope needs to be cleaned, the endoscope is simply adjusted inside the body to be directly opposite the flushing channel 120, and water or air is injected into the flushing channel 120 to clean the endoscope. This process does not require removing the endoscope from the body, reducing the complexity of cleaning, shortening the operation time, and also reducing the risk of infection.

[0033] like Figure 1 In one embodiment of this utility model, the puncture device includes: a catheter 100 having a puncture end for insertion into the body; an operating channel 110 provided inside the catheter 100 for the endoscope to enter and exit the body; and a separate flushing channel 120 provided inside the catheter 100, which is arranged parallel to and alongside the operating channel 110. Both the flushing channel 120 and the operating channel 110 extend to the puncture end. The flushing channel 120 is used to introduce water for cleaning. When the endoscope lens is contaminated, the surgeon can adjust the position of the endoscope so that its tip faces the outlet of the flushing channel 120, and then inject clean water into the flushing channel 120 through an external device to achieve rapid and effective cleaning of the lens surface. For convenient flushing, the flushing channel 120 can extend to the farthest end of the puncture end, thus preventing the catheter 100 from interfering with the endoscope when the endoscope is adjusted. In the above approach, the endoscope does not need to be completely removed from the body during the entire cleaning process, which improves efficiency and safety. This method not only reduces the number of surgical interruptions and the time required for each interruption, thereby shortening the overall surgical time, but also reduces the potential risk of infection and the possibility of damage to surrounding tissues caused by frequent instrument movement.

[0034] In one embodiment of this invention, the operating channel 110 is offset from the axis of the catheter 100, with the offset direction being away from the flushing channel 120. This allows for a thicker wall at the location of the flushing channel 120 on the catheter 100, increasing the structural strength of the flushing channel 120 location and thus ensuring the overall structural strength of the catheter 100. In another embodiment of this invention, the flushing channel 120 is integrally formed onto the catheter 100. This simplifies the processing of the puncture device, thereby reducing manufacturing costs. Because it is integrally formed, the reliability of the flushing channel 120 in subsequent use is also guaranteed.

[0035] like Figure 1In one embodiment of this utility model, an inlet is provided at the end of the catheter 100 away from the puncture end, and the inlet communicates with the flushing channel 120. The puncture device also includes a drainage tube 200, which is connected to the inlet. The drainage tube 200 can be inserted and fixed to the inlet. Thus, when flushing is not required, the drainage tube 200 can be removed, and the catheter 100 can be used normally. When flushing, one end of the drainage tube 200 is inserted into the inlet, and the other end is connected to a water supply device. The drainage tube 200 facilitates the connection between the water supply device and the catheter 100, making it convenient to use. In addition, in one embodiment of this utility model, the drainage tube 200 is flexibly designed, which allows for easy adjustment of the angle of the drainage tube 200 to facilitate connection with the water supply device.

[0036] like Figure 1 In one embodiment of this utility model, a check valve 300 is provided at the end of the drainage tube 200 away from the inlet. The check valve 300 is unidirectionally open towards the inlet. The water supply equipment can be connected to the check valve 300. During cleaning, the water flow can only flow towards the puncture end, which can prevent water or other substances in the body from flowing back from the flushing channel 120 to the outside of the body, ensuring the reliability and safety of the puncture device.

[0037] like Figure 2 In one embodiment of this utility model, the check valve 300 includes:

[0038] The mounting base 310 has a liquid outlet end 311 and a liquid inlet end 312. The mounting base 310 has a receiving cavity 313 inside. The liquid outlet end 311 and the liquid inlet end 312 are connected to the opposite ends of the receiving cavity 313. The drainage tube 200 is connected to the liquid outlet end 311.

[0039] An outer cone portion 320 is disposed within a receiving cavity 313, and an inlet hole 321 communicating with the liquid outlet end 311 is provided on the outer side wall of the outer cone portion 320.

[0040] An elastic seal 330 is disposed in the accommodating cavity 313. One end of the elastic seal 330 is recessed to form an inner cone portion 331, and the other end is provided with an air inlet 332 communicating with the inner cone portion 331. The inner cone portion 331 abuts against the outer cone portion 320, and the air inlet 332 communicates with the liquid inlet end 312.

[0041] The mounting base 310 has a hollow interior forming a receiving cavity 313. The two opposite ends of the receiving cavity 313 are connected to an outlet end 311 and an inlet end 312. An outer cone portion 320 is provided at the outlet end 311, and an inlet hole 321 communicating with the outlet end 311 is provided on the outer cone portion 320. The inlet end 312 is provided with a Luer connector, which can be adapted to a screw-on Luer male connector. Additionally, an elastic seal 330 is provided within the receiving cavity 313. This elastic seal 330 can be made of medical-grade elastic materials such as silicone. The elastic seal 330 can be cylindrical in shape and can be coaxially arranged with the outer cone portion 320 and slide within the receiving cavity 313 along the axial direction of the outer cone portion 320. The side of the elastic seal 330 facing the outer cone portion 320 is recessed to form an inner cone portion 331 that matches the outer cone portion 320. Furthermore, the elastic seal... The interior of 330 is provided with an axially extending air inlet 332. One end of the air inlet 332 is connected to the deepest part of the inner cone 331, and the other end is connected to the liquid outlet 311. When there is no external force, the outer cone 320 is inserted into the inner cone 331 and the elastic seal 330 abuts against the interior of the receiving cavity 313 on the side connected to the Luer interface. At this time, the inner cone 331 and the outer cone 320 are in contact, and the inner cone 331 seals the air inlet on the outer cone 320. When in use, the air supply pipe equipped with the Luer male is inserted into the Luer interface. As the Luer male gradually penetrates and contacts the elastic seal 330, the elastic seal 330 is squeezed and moves towards the air inlet. At the same time, it deforms, causing its inner cone 331 to expand. This process continues until the air inlet is fully exposed and connected to the air inlet on the outer cone 320, thereby realizing gas flow. After disassembling the Luer male head, the elastic seal 330 automatically resets due to its own restoring force, resealing the air inlet to ensure no gas leakage. Thus, the gas supply can be turned on and off simply by disassembling and reassembling the gas supply pipe, simplifying operation and eliminating the need for a valve structure on the puncture device, thus simplifying its structure and reducing manufacturing costs.

[0042] like Figure 2 In one embodiment of this utility model, multiple liquid inlet holes 321 are provided, and the multiple liquid inlet holes 321 are arranged at intervals around the axis of the outer cone portion 320. Two air inlet holes can be provided, and the two air inlet holes are arranged at equal intervals around the axis of the outer cone portion 320. This can increase the area of ​​communication between the air inlet 332 and the air inlet hole, increase the air intake flow rate, and thus increase the inflation speed.

[0043] like Figure 3 The resilient seal 330 includes:

[0044] The first ring portion 333 is provided with an inner cone portion 331;

[0045] The second ring portion 334 is located on the side of the first ring portion 333 near the Luer interface and slides with the receiving cavity 313. The air inlet 332 is located in the second ring portion 334. The outer diameter of the first ring portion 333 is smaller than the outer diameter of the first ring portion 333.

[0046] In this design, the elastic seal 330 includes: a first ring portion 333, coaxially arranged with the outer cone portion 320, and an inner cone portion 331 located on the side of the first ring portion 333 facing the outer cone portion 320; and a second ring portion 334 located on the side of the first ring portion 333 near the Luer interface, the second ring portion 334 slidingly engaging with the receiving cavity 313, and the outer diameter of the first ring portion 333 being smaller than that of the receiving cavity 313. This arrangement ensures the stability of the elastic seal 330 during movement by allowing the second ring portion 334 to slide within the receiving cavity 313. The smaller outer diameter of the first ring portion 333 compared to the second ring portion 334 provides more clearance between the first ring portion 333 and the receiving cavity 313, giving the elastic seal 330 more room for deformation, preventing overpressure, improving its reliability, increasing the axial travel of the elastic seal 330, and making the air inlet on the outer cone surface more easily exposed.

[0047] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A puncture device, characterized in that, include: A catheter has a puncture end, and an operating channel and a flushing channel are provided inside the catheter, which are parallel to and spaced apart from the operating channel. The operating channel and the flushing channel extend to the puncture end.

2. The puncture device as described in claim 1, characterized in that, The operating channel is offset from the axis of the catheter, and the direction of the offset is away from the flushing channel.

3. The puncture device as described in claim 1, characterized in that, The flushing channel is integrally formed on the conduit.

4. The puncture device as described in claim 1, characterized in that, The catheter has an inlet at one end away from the puncture end, and the inlet communicates with the flushing channel. The puncture device also includes a drainage tube, which is connected to the inlet.

5. The puncture device as described in claim 4, characterized in that, The drainage tube is designed to be flexible.

6. The puncture device as described in claim 4, characterized in that, A check valve is installed at the end of the drainage tube away from the inlet, and the check valve is unidirectionally open towards the inlet.

7. The puncture device as described in claim 6, characterized in that, The check valve includes: The mounting base has a liquid outlet and a liquid inlet. The mounting base has a receiving cavity inside. The liquid outlet and the liquid inlet are connected to the opposite ends of the receiving cavity. The drainage tube is connected to the liquid outlet. An outer cone portion is disposed within the accommodating cavity, and an inlet hole communicating with the liquid outlet end is provided on the outer side wall of the outer cone portion; An elastic seal is disposed within the accommodating cavity. One end of the elastic seal is recessed to form an inner cone portion, and the other end is provided with an air inlet communicating with the inner cone portion. The inner cone portion abuts against the outer cone portion, and the air inlet is connected to the liquid inlet end.

8. The puncture device as described in claim 7, characterized in that, Multiple liquid inlet holes are provided, and the multiple liquid inlet holes are spaced apart around the axis of the outer cone.

9. The puncture device as described in claim 7, characterized in that, The resilient seal includes: The first ring portion is provided with the inner cone portion; The second ring is located on the side of the first ring near the liquid inlet end and slides with the accommodating cavity. The air inlet is located in the second ring, and the outer diameter of the first ring is smaller than the outer diameter of the first ring.

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