A minimally invasive dilation and drainage kit

Abstract

The utility model discloses a kind of minimally invasive dilation drainage kits, it is related to medical instrument technical field, including dilation part and drainage part.Dilation part is made of stripping sheath, tee, dilator, sealing cap, drainage part covers drainage tube, drainage collection container and negative pressure source connecting pipe.In the kit, tee is connected with dilator, sealing cap, drainage tube through quick connector, effectively avoid in surgical operation, patient position change or drainage process due to external factors cause connection slack even drop off situation occurs, guarantee the continuity and stability of drainage process, significantly improve the safety and reliability of operation, reduce the risk of complication caused by connection problem, quick connector utilizes convex post and jack cooperation, elastic card piece is engaged to realize firm connection, and quick connector is equipped with sealing structure to improve sealing property.Sealing cap can adjust negative pressure, tee side portion is equipped with ring to facilitate operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a minimally invasive expansion and drainage kit. Background Technology

[0002] In existing minimally invasive dilation and drainage kits, the connection between the tee tube, dilator, sealing cap, and drainage tube generally uses a plug-in structure. This connection method mainly relies on the frictional resistance between the tube and the connector to achieve connection and fixation. From the perspective of ease of operation, the plug-in structure does have significant advantages, allowing medical staff to quickly and easily connect and disassemble the various components, greatly shortening surgical preparation time and the operation process.

[0003] However, in actual clinical applications, this insertion-extraction connection method relying on frictional resistance has gradually revealed many problems. The most prominent issue is that, because it relies solely on friction to maintain the connection, the connection is prone to loosening or even detachment when subjected to slight external pulling, changes in patient positioning, or pressure variations during drainage. Once detachment occurs, it not only interrupts drainage, affecting the normal progress of the surgery and treatment outcome, but may also trigger a series of complications, such as increased risk of infection and exacerbated patient discomfort, posing a potential threat to the patient's health. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a minimally invasive expansion and drainage kit, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a minimally invasive dilation and drainage kit, comprising a dilation part and a drainage part. The dilation part includes a peeling sheath, a three-way tube, a dilator, and a sealing cap. The drainage part includes a drainage tube. The ports of the dilator, the sealing cap, the drainage tube, and the three-way tube are all connected by quick connectors.

[0006] The quick connector includes a first disc and a second disc. The first disc has several circumferentially formed insertion holes inside. The second disc has several protrusions circumferentially connected to its end face facing the first disc. Each protrusion has an elastic clip connected to its outer end.

[0007] Furthermore, the elastic clip is capable of elastic deformation and has a diameter larger than the insertion hole, with the protrusion inserted into the insertion hole and the elastic clip engaging with the first disc body.

[0008] Furthermore, a flow guide hole is provided in the middle of both the first disc and the second disc, and a first groove and a second groove that are adapted to each other are provided around the flow guide hole on the adjacent end faces of the first disc and the second disc, and a sealing gasket is provided inside the first groove and the second groove.

[0009] Furthermore, the sealing cap includes a cap body, with a negative pressure adjustment hole at the end of the cap body, and a collar fitted over the outside of the tee pipe, the collar being connected to the cap body via a rope.

[0010] Furthermore, the peeling sheath and the three-way tube are integrated as a whole, with the expander inserted inside the peeling sheath and the three-way tube, and the tapered expansion part at the bottom of the expander extending out from the inside of the peeling sheath.

[0011] Furthermore, a finger ring is connected to the side of the three-way tube, which is used to place the index finger when the thumb blocks the negative pressure regulating hole.

[0012] Furthermore, the drainage section also includes a drainage collection container and a negative pressure source connecting tube. The inlet of the drainage collection container is connected to the drainage tube, the negative pressure source connecting tube is connected to the outlet of the drainage collection container, and the free end of the negative pressure source connecting tube is connected to the port of the negative pressure suction device.

[0013] This invention provides a minimally invasive dilation and drainage kit. Compared with the prior art, it has the following advantages:

[0014] This minimally invasive dilation and drainage kit uses quick connectors to connect the three-way tube to the dilator, sealing cap, and drainage tube. Compared to the traditional plug-and-play connection method that relies on frictional resistance, it greatly enhances the stability of the connection, effectively preventing the connection from loosening or even falling off due to external factors during surgical operations, changes in patient position, or drainage. This ensures the continuity and stability of the drainage process, significantly improves the safety and reliability of the surgery, and reduces the risk of complications caused by connection problems. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of the quick connector in this utility model;

[0017] Figure 3 This is a half-sectional view of the quick connector after assembly in this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing cap in this utility model;

[0019] Figure 5 This is a half-sectional view of the present invention.

[0020] In the diagram: 1. Peeling sheath; 2. T-joint; 21. Finger ring; 3. Expander; 4. Sealing cap; 41. Cap body; 42. Negative pressure regulating hole; 43. Collar; 44. Rope; 5. Drainage tube; 6. Quick connector; 61. First disc; 62. Insertion hole; 63. First groove; 64. Second disc; 65. Protrusion; 66. Elastic clip; 67. Second groove; 68. Guide hole; 69. Sealing gasket; 7. Drainage collection container; 8. Negative pressure source connection tube. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a minimally invasive dilation and drainage kit, mainly composed of a dilation part and a drainage part. The dilation part includes a peeling sheath 1, a three-way tube 2, a dilator 3, and a sealing cap 4; the drainage part includes a drainage tube 5, a drainage collection container 7, and a negative pressure source connection tube 8. The components are detachably connected via quick connectors 6.

[0023] The quick connector 6 includes a first disc 61 and a second disc 64. The first disc 61 has several circumferentially oriented insertion holes 62. The second disc 64 has several circumferentially oriented protrusions 65 connected to its end face facing the first disc 61. Each protrusion 65 has an elastic retainer 66 connected to its outer end. The elastic retainer 66 is capable of elastic deformation and has a diameter larger than the insertion holes 62. When the expander 3, sealing cap 4, drainage tube 5, and the port of the tee tube 2 are connected, the protrusions 65 of the second disc 64 are inserted into the insertion holes 62 of the first disc 61. After elastic deformation, the elastic retainer 66 passes through the insertion holes 62, then returns to its original shape and engages with the first disc 61, achieving a secure connection.

[0024] Both the first disc 61 and the second disc 64 have flow-guiding holes 68 in their middle sections to ensure smooth fluid flow. On the adjacent end faces of the first disc 61 and the second disc 64, corresponding first grooves 63 and second grooves 67 are formed around the flow-guiding holes 68. A sealing gasket 69 is provided inside both the first groove 63 and the second groove 67. When the first disc 61 and the second disc 64 are connected, the sealing gasket 69 is tightly pressed between the first groove 63 and the second groove 67, effectively preventing fluid leakage and significantly improving the sealing effect of the quick connector 6.

[0025] The sealing cap 4 includes a cap body 41, with a negative pressure adjustment hole 42 at the end of the cap body 41. A collar 43 is fitted over the outside of the three-way tube 2, and the collar 43 is connected to the cap body 41 via a rope 44. When the cap body 41 is not in use, the collar 43 is fixed to the three-way tube 2, and the rope 44 suspends the cap body 41 near the three-way tube 2 to prevent loss. When the cap body 41 is needed, it is connected to the three-way tube 2 via a quick connector 6. During drainage, if it is necessary to adjust the negative pressure, medical staff can completely block the negative pressure adjustment hole 42 with their thumb, which increases the negative pressure of drainage; conversely, releasing the thumb decreases the negative pressure of drainage, thus achieving flexible adjustment of the negative pressure.

[0026] The peeling sheath 1 and the three-way tube 2 are an integral structure. The expander 3 is inserted inside the peeling sheath 1 and the three-way tube 2, and the tapered expansion part at the bottom of the expander 3 extends out from the inside of the peeling sheath 1. The side of the three-way tube 2 is connected to a finger ring 21, which is used to place the index finger when the thumb blocks the negative pressure adjustment hole 42, making the operation more convenient and effortless.

[0027] In the drainage section, the inlet of the drainage collection container 7 is connected to the drainage tube 5, and the negative pressure source connecting tube 8 is connected to the outlet of the drainage collection container 7. The free end of the negative pressure source connecting tube 8 is connected to the port of the negative pressure aspirator. When the negative pressure aspirator is working, a negative pressure is created inside the drainage collection container 7 through the negative pressure source connecting tube 8, thereby drawing the accumulated fluid from the patient's body through the drainage tube 5, the three-way tube 2, and the peeling sheath 1, and collecting it in the drainage collection container 7.

[0028] The usage process for this kit is as follows:

[0029] (1) Puncture positioning: Before using this kit, first perform a puncture operation (the puncture needle is a pre-positioned operation, not shown in the figure) to complete the positioning.

[0030] (2) Guide wire guidance: Under the guidance of the guide wire (not shown in the figure), the peeling sheath 1, the three-way tube 2 and the dilator 3 inserted inside it are expanded along the guide wire. The tapered expansion part of the dilator 3 helps to expand the channel smoothly.

[0031] (3) Connecting the T-tube 2 and the expander 3: During the expansion process, after the expander 3, the peeling sheath 1, and the T-tube 2 are inserted into place, the T-tube 2 and the expander 3 are firmly connected through the quick connector 6.

[0032] (4) Pull out the expander 3: After expansion is completed, pull out the expander 3 with force to make room for subsequent operations.

[0033] (5) Connect the sealing cap 4: Connect the tee pipe 2 to the sealing cap 4 through the quick connector 6. At this time, the negative pressure can be adjusted as needed to conduct a preliminary sealing and negative pressure adjustment test.

[0034] (6) Connect the drainage tube 5 and perform drainage: Connect the three-way tube 2 to the drainage tube 5 via the quick connector 6, and connect the negative pressure source connection tube 8 to the drainage collection container 7 and the negative pressure aspirator. Turn on the negative pressure aspirator to create negative pressure in the drainage collection container 7, and begin draining the fluid in the patient's body. The fluid is drawn out through the drainage tube 5, the three-way tube 2, and the peeling sheath 1 and collected in the drainage collection container 7.

Claims

1. A minimally invasive dilation and drainage kit, characterized in that, It includes an expansion section and a drainage section. The expansion section includes a peeling sheath (1), a three-way tube (2), an expander (3), and a sealing cap (4). The drainage section includes a drainage tube (5). The ports of the expander (3), the sealing cap (4), the drainage tube (5), and the three-way tube (2) are all connected by a quick connector (6). The quick connector (6) includes a first disc (61) and a second disc (64). The first disc (61) has several circumferentially arranged insertion holes (62) inside. The second disc (64) has several protrusions (65) circumferentially connected to the end face of the first disc (61). The outer end of each protrusion (65) is connected to an elastic clip (66).

2. The minimally invasive dilation and drainage kit according to claim 1, characterized in that, The elastic clip (66) is capable of elastic deformation and has a diameter larger than the socket (62). The protrusion (65) is inserted into the socket (62) and the elastic clip (66) engages with the first disc (61).

3. The minimally invasive dilation and drainage kit according to claim 2, characterized in that, A flow guide hole (68) is provided in the middle of the first disc (61) and the second disc (64), and a first groove (63) and a second groove (67) that are adapted to each other are provided around the flow guide hole (68) on the adjacent end faces of the first disc (61) and the second disc (64). A sealing gasket (69) is provided inside the first groove (63) and the second groove (67).

4. The minimally invasive dilation and drainage kit according to claim 1, characterized in that, The sealing cap (4) includes a cap body (41), with a negative pressure adjustment hole (42) at the end of the cap body (41), and a collar (43) is fitted on the outside of the three-way pipe (2), which is connected to the cap body (41) by a rope (44).

5. The minimally invasive dilation and drainage kit according to claim 1, characterized in that, The peeling sheath (1) and the three-way tube (2) are a whole. The expander (3) is inserted inside the peeling sheath (1) and the three-way tube (2), and the conical expansion part at the bottom of the expander (3) extends out from the inside of the peeling sheath (1).

6. The minimally invasive dilation and drainage kit according to claim 4, characterized in that, The side of the three-way tube (2) is connected to a finger ring (21), which is used to place the index finger when the thumb blocks the negative pressure regulating hole (42).

7. The minimally invasive dilation and drainage kit according to claim 1, characterized in that, The drainage section also includes a drainage collection container (7) and a negative pressure source connecting pipe (8). The inlet of the drainage collection container (7) is connected to the drainage pipe (5), and the negative pressure source connecting pipe (8) is connected to the outlet of the drainage collection container (7). The free end of the negative pressure source connecting pipe (8) is connected to the port of the negative pressure suction device.

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