Sleeve set for peritoneal irrigation and suction

Abstract

The utility model relates to the technical field of medical instruments, in particular to a cannula suite for peritoneal irrigation and suction. A channel is arranged in the connecting pipe of the sleeve suite. A first drainage hole is formed in the side wall of the suction part. The first drainage hole is connected with the channel. The outer wall of the connecting pipe is sleeved with the adjusting pipe. The adjusting tube is located on the suction part. And the adjusting pipe has a rotational degree of freedom of rotating around the axis of the connecting pipe. A second drainage hole corresponding to the first drainage hole is formed in the side wall of the adjusting pipe. When the adjusting pipe is located at the first position, the first drainage hole and the second drainage hole completely coincide, and the adjusting pipe and the connecting pipe form a drainage pipeline; when the adjusting pipe is located at the second position, the side wall of the adjusting pipe seals the first drainage hole, and the adjusting pipe and the connecting pipe form a flushing pipeline. According to the cannula kit for abdominal cavity irrigation and suction, the coupling property of the suction pipeline and the irrigation pipeline is improved, winding between the pipelines is avoided, and the operation stability of negative pressure suction and irrigation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a cannula kit for abdominal cavity irrigation and aspiration. Background Art

[0002] In abdominal surgery or laparoscopic surgery, suction drainage and irrigation are key operative steps, which not only improve the safety and effectiveness of the surgery, but also effectively reduce the risk of postoperative complications. The suction drainage operation is carried out by using a suction device, which utilizes the negative pressure principle to remove excess fluid, blood and air from the surgical area to ensure the smooth progress of the surgery. The irrigation operation usually uses normal saline as the irrigation fluid, and the irrigation fluid is injected into the surgical area through a syringe or a special irrigation device to clean the wound surface and wash away blood clots or tissue fragments.

[0003] Among them, the main purpose of suction drainage is to maintain a clear surgical field of view. By suction, doctors can clean up these fluids and keep the surgical field open and clear. The main function of irrigation is to clean the surgical area. In this way, in order to ensure the smooth progress of the surgery, at least two pipeline systems for the suction device and the irrigation device need to be arranged in the surgical operation area, which in turn affects the surgical operation space.

[0004] After retrieval, a disposable endoscope outer cannula that can be irrigated and aspirated is disclosed in Chinese patent document CN113712610A. The cannula includes a tube body, and a filling body is fixedly arranged in the inner cavity of the tube body. The filling body divides the inner cavity of the tube body into an endoscope cavity for the endoscope to extend into, at least one suction cavity and at least one irrigation cavity that are independent of each other. A spiral drainage groove for drainage is arranged on the outer side of the front end of the tube body, and a plurality of drainage ports communicated with the suction cavity are arranged in the drainage groove.

[0005] However, in the actual use process of the above-mentioned cannula, it still does not break away from the design of the double-pipeline parallel structure. The tube body is used to integrate the suction cavity and the irrigation cavity. The irrigation cavity occupies a part of the cross-section of the tube body, which is likely to affect the actual suction efficiency of the cannula and further affect the surgical operation process. Summary of the Invention

[0006] The purpose of the utility model is to provide a cannula structure during the implementation of abdominal surgery and laparoscopic surgery, so as to improve the coupling of the suction pipeline and the irrigation pipeline, avoid the entanglement between the pipelines, and enhance the operation stability of negative pressure suction and irrigation.

[0007] To achieve the above purpose, the utility model proposes the following scheme:

[0008] A cannula kit for abdominal cavity irrigation and aspiration, comprising a connecting tube and an adjusting tube;

[0009] The connecting tube includes a suction part and a connecting part connected in sequence. A channel is provided inside the connecting tube. A first drainage hole is provided on the side wall of the suction part, and the first drainage hole is connected to the channel.

[0010] The adjusting tube is sleeved on the outer wall of the connecting tube. The adjusting tube is located at the suction part. The adjusting tube has a rotational degree of freedom around the axis of the connecting tube. A second drainage hole corresponding to the first drainage hole is provided on the side wall of the adjusting tube. The adjusting tube has a first position and a second position on the connecting tube.

[0011] When the adjusting tube is in the first position, the first drainage hole and the second drainage hole completely coincide, and the adjusting tube and the connecting tube form a drainage pipeline.

[0012] When the adjusting tube is in the second position, the side wall of the adjusting tube closes the first drainage hole, and the adjusting tube and the connecting tube form a flushing pipeline.

[0013] Preferably, a sealing structure is provided between the adjusting tube and the connecting tube, and the sealing structure is located at the end of the adjusting tube. With this arrangement, the sealing structure is used to improve the sealing performance at the end of the adjusting tube. When the adjusting tube and the connecting tube form a flushing pipeline, it is beneficial to prevent the flushing liquid from overflowing between the adjusting tube and the connecting tube, thereby ensuring the flushing effect.

[0014] Preferably, the first drainage holes are arranged in a circular pattern on the side wall of the connecting tube around the axis of the connecting tube to form a drainage unit. With this arrangement, when the adjusting tube and the connecting tube form a drainage pipeline, it is beneficial to form an annular suction area near the wound, further improving the drainage effect and the suction efficiency.

[0015] Preferably, the drainage units are arranged in a linear array along the axial direction of the connecting tube.

[0016] Preferably, the sealing structure includes an annular sealing groove. The annular sealing groove is arranged on the side wall of the connecting tube, and a sealing ring is embedded in the annular sealing groove.

[0017] Preferably, a coupling joint is connected to the connecting part of the connecting tube. An output port is provided at one end of the coupling joint, and a negative pressure suction port and a flushing port are provided at the other end of the coupling joint. The output port is connected to the negative pressure suction port and the flushing port through a Y-shaped pipeline. With this arrangement, it is convenient for the flushing tube and the suction tube to form a coupling, improving the coupling performance of the suction pipeline and the flushing pipeline and avoiding the entanglement between the pipelines.

[0018] Preferably, a solenoid valve is provided on the Y-shaped pipeline. With this arrangement, the solenoid valve on the Y-shaped pipeline is used to control the flow of fluid (such as suction liquid or flushing liquid). It realizes the opening and closing of the valve through electromagnetic force, thereby realizing the switching between the negative pressure suction and flushing functions.

[0019] Compared with the prior art, a cannula kit for abdominal irrigation and aspiration provided by the present utility model has the following substantial features and improvements: By setting the cannula structure of the connecting pipe and the adjusting pipe, the cannula kit for abdominal irrigation and aspiration realizes the two functions of irrigation and aspiration in abdominal surgery and laparoscopic surgery. By rotating the adjusting pipe, it can adapt to different surgical scenarios and operation requirements. By rotating the adjusting pipe to drive the change of the relative position between the adjusting pipe and the connecting pipe, the functions can be easily switched, enabling the operator to change the functions of the cannula through a simple rotation action without complex operation steps, simplifying the surgical process, improving the flexibility and efficiency of surgical operation. At the same time, since the cannula kit integrates the irrigation and aspiration functions, the number of times of replacing different instruments during the operation is reduced, the surgical complexity and potential operation risks are reduced, and moreover, the coupling of the aspiration pipeline and the irrigation pipeline is improved, avoiding the entanglement between the pipelines, and enhancing the operation stability of negative pressure aspiration and irrigation. Brief Description of the Drawings

[0020] Figure 1 FIG. is a perspective structural view of a cannula kit for abdominal irrigation and aspiration in an embodiment of the present utility model.

[0021] Figure 2 is Figure 1 A perspective structural view of the cannula kit for abdominal irrigation and aspiration in another perspective.

[0022] Figure 3 FIG. is an assembly structural view of the connecting pipe and the adjusting pipe in an embodiment of the present utility model.

[0023] Figure 4 FIG. is a reference view of the usage state when the adjusting pipe in a cannula kit for abdominal irrigation and aspiration is in the second position in an embodiment of the present utility model.

[0024] Reference Signs: 1, connecting pipe; 2, adjusting pipe; 3, coupling joint; 4, channel; 5, first drainage hole; 6, second drainage hole; 7, sealing structure; 8, negative pressure aspiration port; 9, irrigation port. Detailed Description of the Preferred Embodiments

[0025] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0026] As Figures 1-4 shown, in an embodiment of the present utility model, a cannula kit for abdominal irrigation and aspiration is proposed, aiming to improve the coupling of the aspiration pipeline and the irrigation pipeline during the implementation of abdominal surgery and laparoscopic surgery, avoid the entanglement between the pipelines, and enhance the operation stability of negative pressure aspiration and irrigation.

[0027] In the embodiment of the present utility model, a cannula kit for abdominal irrigation and aspiration realizes the two functions of irrigation and aspiration in abdominal surgery and laparoscopic surgery through the cannula structure of the connecting tube 1 and the adjusting tube 2. By rotating the adjusting tube 2, different surgical scenarios and operation requirements can be adapted. Since the cannula kit integrates the irrigation and aspiration functions, the number of times of replacing different instruments during the operation is reduced, the surgical complexity and potential operation risks are lowered. Moreover, the cannula kit for abdominal irrigation and aspiration improves the coupling of the suction pipeline and the irrigation pipeline through the cannula structure, avoids the entanglement between the pipelines, and enhances the operation stability of negative pressure suction and irrigation.

[0028] As Figure 1 shown in combination with Figure 2 A cannula kit for abdominal irrigation and aspiration includes a connecting tube 1 and an adjusting tube 2. The connecting tube 1 includes a suction part and a connecting part connected in sequence. A channel 4 is arranged inside the connecting tube 1. A first drainage hole 5 is arranged on the side wall of the suction part. The first drainage hole 5 is connected to the channel 4.

[0029] As Figure 3 shown, the adjusting tube 2 is sleeved on the outer wall of the connecting tube 1. The adjusting tube 2 is located at the suction part. The adjusting tube 2 has a rotational degree of freedom around the axis of the connecting tube 1. A second drainage hole 6 corresponding to the first drainage hole 5 is arranged on the side wall of the adjusting tube 2. The adjusting tube 2 has a first position and a second position on the connecting tube 1.

[0030] As Figure 1 shown, when the adjusting tube 2 is in the first position, the first drainage hole 5 and the second drainage hole 6 are completely coincident, and the adjusting tube 2 and the connecting tube 1 form a drainage pipeline. The drainage pipeline uses the negative pressure principle to remove the excess liquid, blood and air in the surgical area, ensures the cleanliness of the surgical area, provides a clear vision for the doctor, and thus enables more precise surgical operations.

[0031] As Figure 4 shown, when the adjusting tube 2 is in the second position, the side wall of the adjusting tube 2 closes the first drainage hole 5, and the adjusting tube 2 and the connecting tube 1 form a flushing pipeline. Normal saline is usually used as the flushing liquid, and the flushing liquid is injected into the surgical area through the flushing pipeline by a syringe or a special flushing device. Flushing not only helps to remove the pollutants generated during the operation, but also promotes the healing of the wound and reduces the possibility of postoperative infection.

[0032] Wherein, a coupling joint 3 is connected to the connecting part of the connecting tube 1. An output port is arranged at one end of the coupling joint 3. A negative pressure suction port 8 and a flushing port 9 are arranged at the other end of the coupling joint 3. The output port is connected to the negative pressure suction port 8 and the flushing port 9 through a Y-shaped pipeline. With such a setting, it is convenient for the flushing tube and the suction tube to form a coupling, improves the coupling of the suction pipeline and the flushing pipeline, and avoids the entanglement between the pipelines.

[0033] For example, a solenoid valve is provided on the Y-shaped pipeline. With such a setting, the solenoid valve on the Y-shaped pipeline is used to control the flow of fluid (such as suction fluid or flushing fluid). It realizes the opening and closing of the valve through electromagnetic force, and then realizes the switching of the negative pressure suction and flushing functions.

[0034] As Figure 2 shown, the first drainage holes 5 are arranged in a circular pattern on the side wall of the connecting pipe 1 around the axis of the connecting pipe 1, forming a drainage unit. With such a setting, when the adjusting pipe 2 and the connecting pipe 1 form a drainage pipeline, it is beneficial to form an annular suction area near the wound, further improving the drainage effect and the suction efficiency. The number of the first drainage holes 5 in the drainage unit is selected according to the actual size of the connecting pipe 1 and the actual drainage requirements. For example, the number of the first drainage holes 5 in the drainage unit is preferably 3 - 5.

[0035] To further improve the drainage efficiency, as Figure 2 shown, the drainage units are arranged in a linear array along the axial direction of the connecting pipe 1. Among them, the second drainage holes 6 and the first drainage holes 5 correspond one by one.

[0036] As Figure 3 shown, a sealing structure 7 is provided between the adjusting pipe 2 and the connecting pipe 1. The sealing structure 7 is located at the end of the adjusting pipe 2. With such a setting, the sealing structure 7 is used to improve the sealing performance of the end of the adjusting pipe 2. When the adjusting pipe 2 and the connecting pipe 1 form a flushing pipeline, it is beneficial to prevent the flushing fluid from overflowing between the adjusting pipe 2 and the connecting pipe 1, and then ensure the flushing effect.

[0037] For example, the sealing structure 7 includes an annular sealing groove. The annular sealing groove is arranged on the side wall of the connecting pipe 1. A sealing ring is embedded in the annular sealing groove. The sealing ring can be selected as a sealing rubber ring.

[0038] When the casing kit for abdominal cavity flushing and suction proposed in the embodiment of the present utility model is used, ensure that the casing kit has been properly disinfected and prepared, check whether the connecting pipe 1 and the adjusting pipe 2 are intact, and ensure that the channel 4 and the drainage holes are not blocked.

[0039] When using the suction function: Rotate the adjusting pipe 2 to the first position. At this time, the second drainage holes 6 of the adjusting pipe 2 are completely coincident with the first drainage holes 5 of the connecting pipe 1; Connect the suction device (such as a suction pump), turn on the suction device, and suck out the liquid and tissue fragments in the abdominal cavity through the drainage pipeline formed by the first drainage holes 5 and the second drainage holes 6.

[0040] When using the flushing function: Rotate the adjusting tube 2 to the second position, at this time the side wall of the adjusting tube 2 closes the first drainage hole 5; Connect a flushing device (such as a flushing pump), turn on the flushing device, and inject the flushing liquid into the abdominal cavity through the channel 4 inside the connecting tube 1 for flushing.

[0041] According to the surgical needs, switch between the first position and the second position by rotating the adjusting tube 2 to achieve the conversion between the suction and flushing functions. When switching, ensure that the suction or flushing device has been turned off to prevent liquid backflow or accidental splashing. During the operation, closely monitor the effects of suction and flushing, and adjust the working parameters of the device according to the actual situation. After use, properly handle the disposable trocar kit in accordance with the regulations for the treatment of medical waste.

[0042] The utility model is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the utility model can also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A cannula kit for peritoneal lavage and aspiration, characterized in that: It comprises a connecting pipe (1) and an adjusting pipe (2); The connecting pipe (1) comprises a suction part and a connecting part which are connected in sequence, a channel (4) is arranged inside the connecting pipe (1), a first drainage hole (5) is arranged on the side wall of the suction part, and the first drainage hole (5) is connected to the channel (4); The regulating tube (2) is sleeved on the outer wall of the connecting tube (1), the regulating tube (2) is located in the suction part, the regulating tube (2) has a rotational freedom around the axis of the connecting tube (1), a second drainage hole (6) corresponding to the first drainage hole (5) is arranged on the side wall of the regulating tube (2), and the regulating tube (2) has a first position and a second position on the connecting tube (1); The regulating tube (2) is in a first position, the first drainage hole (5) and the second drainage hole (6) completely overlap, and the regulating tube (2) and the connecting tube (1) form a drainage pipeline; The regulating tube (2) is in the second position, the side wall of the regulating tube (2) closes the first drainage hole (5), and the regulating tube (2) and the connecting tube (1) form a flushing pipeline.

2. The cannula kit for peritoneal lavage and aspiration according to claim 1, characterized in that: A sealing structure (7) is provided between the regulating tube (2) and the connecting tube (1), and the sealing structure (7) is located at the end of the regulating tube (2).

3. The cannula kit for peritoneal lavage and aspiration according to claim 1, characterized in that: The first drainage holes (5) are arranged in a circular shape on the side wall of the connecting pipe (1) around the axis of the connecting pipe (1), forming a drainage unit.

4. The cannula kit for peritoneal lavage and aspiration according to claim 3, characterized in that: The drainage units are arranged in a linear array along the axial direction of the connecting pipe (1).

5. The cannula kit for peritoneal lavage and aspiration according to claim 2, characterized in that: The sealing structure (7) comprises an annular sealing groove, which is arranged on the side wall of the connecting pipe (1), and a sealing ring is embedded in the annular sealing groove.

6. The cannula kit for peritoneal lavage and aspiration according to claim 1, characterized in that: The connecting portion of the connecting pipe (1) is connected to a coupling joint (3), one end of the coupling joint (3) is provided with an output port, the other end of the coupling joint (3) is provided with a negative pressure suction port (8) and a flushing port (9), and the output port is connected to the negative pressure suction port (8) and the flushing port (9) via a Y-shaped pipeline.

7. The cannula kit for peritoneal lavage and aspiration according to claim 6, characterized in that: The Y-shaped pipeline is provided with a solenoid valve.

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