An integrated multifunctional intubation device with flushing, drainage and drug delivery functions

Abstract

This utility model discloses an integrated multifunctional intubation device with flushing, drainage, and drug administration functions. The device includes an intubation tube, a three-way drug administration flushing and drainage device, a connecting tube, and an anti-backflow negative pressure drainage ball. The inner surface of the intubation tube has supporting teeth to prevent compression closure. One end is a connecting section, and the working section's tail end is fish-mouth shaped with staggered flushing holes on its smooth surface. The outer circumference of the intubation tube has an "I"-shaped fixing ring. The three-way valve is connected to the anti-backflow negative pressure drainage ball through the connecting tube, allowing liquid in the intubation tube to flow into the drainage ball, preventing backflow and allowing liquid to flow out through the drain hole. The connections between the connecting tube, the intubation tube, and the three-way valve are all threaded and tightened. This device integrates multiple functions, has a reasonable structural design, and can effectively realize flushing, drainage, and drug administration operations, while also preventing blockage of the intubation tube due to compression and dislodgement due to external force.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an integrated multifunctional cannulation device with flushing, drainage and drug delivery functions. Background Technology

[0002] In orthopedic surgery, it is often necessary to irrigate the surgical site during the procedure and in subsequent treatment. This serves two purposes: to remove necrotic and detached tissue and to clean and disinfect the area to prevent infection. Therefore, the treatment of orthopedic patients often requires procedures such as irrigation, drainage, and administration of medications into soft tissue cavities or joint cavities.

[0003] Chinese patent CN215134559U discloses an orthopedic irrigation and drainage drug delivery device, which includes an annular reservoir, a vacuum pump, a trachea, a drainage tube, and an irrigation branch tube. The vacuum pump generates a negative pressure environment, and by opening a first valve, liquid flows into the annular reservoir through the drainage tube. Closing the first valve and opening a second valve allows for irrigation and drug delivery to the patient's wound via the irrigation and drug delivery branch tubes. This device uses the annular reservoir to collect impurities in the flowing liquid, preventing wound infection. However, this device only considers structural improvements in the drug delivery and irrigation methods. Chinese patent CN209827704U discloses a drainage and irrigation tube and an integrated device combining puncture, irrigation, drainage, and drug delivery functions. This device has a drainage hole in the tube insertion section to drain the liquid; however, the exposed tube is easily compressed by patient movement, causing it to flatten and affecting the flow of drainage fluid.

[0004] Based on the problems existing in the prior art, this application aims to provide a device for cleaning and disinfection after orthopedic surgery to avoid infection. The device can be used for rinsing, drainage and drug administration. The device also needs to have the function of fixing the tube to prevent the tube from moving and the tube is not easily crushed. Summary of the Invention

[0005] Based on the above objectives, this utility model provides an integrated multifunctional intubation device with flushing, drainage and drug administration functions. This device can fix the tube body to avoid the tube body from falling off or entering the wound due to patient movement, which would lead to the need for re-insertion or wound contamination. Moreover, due to the internal structural design of the tube body, the tube body is not easily flattened, which would prevent the flow of liquid.

[0006] The specific technical solution is as follows:

[0007] An integrated multifunctional cannulation device with flushing, drainage and drug administration functions, the device includes a pipe, a three-way valve, a connecting pipe and a backflow prevention negative pressure drainage ball;

[0008] The inner surface of the insertion tube is provided with support teeth to prevent the tube body from being squeezed and closing. One end of the insertion tube is a connecting section that connects to a three-way valve, and the other end is a working section with a flushing hole. A fixing device for fixing the insertion tube is also provided on the outer periphery of the insertion tube.

[0009] The drug delivery device includes a cannula structure and a three-way valve structure; the cannula is connected to the three-way valve structure, and the three-way valve is connected to the anti-backflow negative pressure drainage ball through a connecting pipe.

[0010] Furthermore, the inner surface of the cannula is provided with triangular support teeth on half of its surface, while the other half is a smooth surface.

[0011] Furthermore, the support teeth are distributed in a straight line on the inner surface of the cannula.

[0012] Furthermore, the tail end of the working section is shaped like a fish mouth, and the smooth surface has multiple small flow holes.

[0013] Furthermore, the plurality of flow holes are arranged in an alternating pattern.

[0014] Furthermore, the fixing device is a fixing ring structure set on the outer periphery of the insertion tube, and the grooved ring structure is set at the first small hole 10cm away from the end of the far working section.

[0015] Furthermore, the fixing ring has an "I"-shaped structure that is low in the middle and high at both ends.

[0016] Furthermore, the anti-backflow negative pressure drainage ball is a negative pressure ball that can prevent liquid backflow. The negative pressure ball is connected to the No. 2 connection port of the three-way valve structure through the connecting pipe. It is used to direct the liquid in the insertion tube to the anti-backflow negative pressure drainage ball through the three-way valve and the connecting pipe. The liquid collected in the anti-backflow negative pressure drainage ball cannot flow in reverse, but can flow out from the drain hole at the tail of the anti-backflow negative pressure drainage ball.

[0017] Furthermore, the tooth height of the triangular support tooth is no greater than 1 / 3 of the length of the inner diameter of the insertion tube.

[0018] Furthermore, the connection method between the connecting pipe and the second connection port of the three-way valve, and the connection method between the insert pipe and the first connection port of the three-way valve, are both threaded tightening and fixing.

[0019] The working principle of this utility model is as follows: An integrated multifunctional intubation device with flushing, drainage and drug administration functions is provided. The device includes an intubation tube (1), a flushing, drainage and three-way valve (2) connected to the intubation tube (1), a connecting tube (3) and a drainage ball (4). Medical staff can use this device to flush, drain and administer drugs to the soft tissue cavity, bone marrow cavity or joint cavity of orthopedic patients.

[0020] The medical staff first inserts the working segment (11) of the intubation tube (1) into the tissue cavity that needs to be treated with irrigation, drainage, medication, etc., through the intubation incision (5) next to the surgical incision. The length of the working segment inserted into the skin is determined by the doctor according to the patient's surgical site. During the placement of the intubation tube (1), the flushing hole (111) near the fixing ring (12) enters the wound through the intubation incision (5) to complete the placement of the working segment (11) of the intubation tube (1). If the working segment (11) of the intubation tube (1) is too long or excessive in the wound, the doctor can decide the length to be retained and cut off the excess length. Then, the intubation incision (5) is sutured and the suture line (6) of the intubation incision is knotted and fixed in the groove of the fixing ring (12) to complete the procedure. After the operation, the exposed connecting tube (3) is fixed to the skin near the patient's wound with medical tape. The other end of the connecting tube (1) is the connecting section (13). The end of the connecting section (13) is fixedly connected to the three-way valve (2). The three-way valve (2) is equipped with three connection ports. The first connection port (21) is connected to the end of the connecting section (13) of the connecting tube (1). The second connection port (22) is connected to the connecting tube (3) that connects to the anti-backflow negative pressure drainage ball (4). The third connection port (23) is equipped with a sealing cap. When administering medication or rinsing, the sealing cap is opened and the syringe (7) is used to add medication or rinsing solution through the connection port (23). When not in use, the connection port is disinfected and the sealing cap is closed. This can prevent wound infection.

[0021] When using this device for drainage, first flatten the negative pressure ball, turn on the negative pressure mode, then rotate the three-way valve (2) and the rotary switch to connect the first connection port (21) and the second connection port (22) of the valve. Through the insertion tube (1) and the insertion tube (2), the drainage fluid in the wound is drained into the anti-backflow negative pressure drainage ball (4). After the drainage fluid in the anti-backflow negative pressure drainage ball (4) is full, the opening cap of the drain port (41) at the tail of the anti-backflow negative pressure drainage ball (4) can be opened to release the drainage fluid. After that, the cap is closed, the drainage ball is flattened, and the drainage operation continues.

[0022] When administering medication through this device, first follow the above drainage procedure to drain the drainage fluid in the lesion site. Then rotate the three-way valve (2) to connect the valve's first connection port (21) and the third connection port (23). Open the sealing cap of the third connection port (23). After disinfecting the connection port with disinfectant, inject the pre-prepared medication into the cannula (1) through the syringe (7). The medication will then flow through the flushing hole (111) on the working section (11) of the cannula (1) to the soft tissue cavity, bone marrow cavity, or joint cavity of the patient with the lesion for treatment. After the medication is administered, turn the knob of the three-way valve (2) to the position of closing the first connection port (21) so that the medication can fully act in the joint cavity. Finally, disinfect the third connection port (23) and the sealing cap again with disinfectant, tighten the sealing cap, and complete the medication administration operation.

[0023] When using this device for irrigation, at least two sets of this device are usually placed in advance during surgery. During irrigation, one set is the inlet and the other is the outlet. Either one can be chosen as the inlet and the other as the outlet, and these positions can be interchanged according to the needs of the patient. First, turn on the drainage mode set to the outlet device, as detailed in the above operating procedure. Then open the sealing cap of the No. 3 connection port (23) of another device set as the inlet of the flushing fluid. After disinfecting the connection port with disinfectant, connect the flushing fluid to the No. 3 connection port (23) through the infusion set tube. Then rotate the knob of the three-way valve (2) to connect the No. 1 connection port (21) and the No. 3 connection port (23) of the valve. The flushing fluid will flow into the intubation tube (1) through the No. 3 connection port (23) and the No. 1 connection port (21) in sequence, and flow through the flushing hole (111) at the working end of the intubation tube (11) to the soft tissue cavity, bone marrow cavity or joint cavity of the patient with lesions for treatment. The flushing fluid flows out through the lesion cavity along the other outlet intubation device. After rinsing, turn the knob of the three-way valve (2) to the position of closing the No. 1 connection port (21) or connecting the No. 1 connection port (21) and the No. 2 connection port (22) in the drainage mode. The specific mode is determined by the doctor according to the patient's condition. Finally, disinfect the No. 3 connection port (23) and the sealing cap again with disinfectant, tighten the sealing cap, and complete the rinsing operation.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] (1) The device has support teeth inside the cannula, which can effectively prevent the cannula from being compressed by soft tissue external force and the fluid from not flowing;

[0026] (2) A fixing ring is set on the tube body. The suture of the incision is tied on the fixing ring to prevent the tube from falling out or entering the wound due to the movement of the affected limb, which would cause wound infection.

[0027] (3) It is equipped with multiple flushing holes to prevent the drainage, flushing, drug administration and other treatment operations from being unable to continue due to blockage of the tube opening;

[0028] (4) The setting of the anti-backflow negative pressure drainage ball can prevent the liquid collected in the drainage ball from flowing back and contaminating the wound, causing the disease to worsen;

[0029] (5) The device can be placed on the lesion site according to the patient's condition and can be used for daily treatment. This avoids the pain caused to the patient by repeatedly puncturing and aspirating fluid with a syringe every day and improves the patient's treatment experience. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a vertical cross-sectional view of the cannula of this utility model;

[0032] Figure 3 This is a cross-sectional view of the cannula of this utility model;

[0033] Figure 4 This is a cross-sectional view of the present invention;

[0034] Figure 5 This is a diagram showing the usage state of this utility model;

[0035] Figure 6 This is a diagram illustrating the length distribution of the cannulation working section structure of this utility model;

[0036] Figure 7 This is a diagram illustrating the dosing and usage status of this utility model;

[0037] In the diagram, 1-Intubation tube; 11-Working section; 111-Purification orifice; 112-Support tooth; 12-Fixing ring; 13-Connecting section; 2-Three-way valve; 21-Connection port 1; 22-Connection port 2; 23-Connection port 3; 3-Connecting tube; 4-Anti-backflow negative pressure drainage ball; 41-Drainage hole; 5-Intubation incision; 6-Intubation incision suture; 7-Injector. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0039] Example 1: An integrated multifunctional intubation device with flushing, drainage and drug administration functions, the device includes an intubation tube 1, a three-way valve 2, a connecting tube 3 and a backflow prevention negative pressure drainage ball 4.

[0040] like Figure 2-3 As shown, the cannula 1 is provided with multiple triangular support teeth 112 inside. The support teeth 112 are continuously arranged and laid flat on the inner surface of the cannula 1, occupying 1 / 2 of the inner surface area of ​​the cannula. Each support tooth 112 is triangular prism-shaped, and the length of the triangular prism is the same as the length of the cannula 11.

[0041] like Figure 1 and Figure 4 As shown, the opposite surface of the internal support teeth 112 of the cannula 1 is a smooth surface. Multiple flushing holes 111 are provided on the smooth surface. The flushing holes 111 are arranged in multiple rows and staggered to the head end of the working section 11 of the cannula 1. A fixing ring 12 is provided at the rear end of the first flushing hole 111 near the three-way valve 2 of the working section 11. The fixing ring 12 is a grooved ring provided on the outer periphery of the cannula 1. The ring has an "I" shaped structure with a low middle and high ends, and is used to tie the cannula incision suture 6 to fix the cannula 1.

[0042] The drug delivery device includes, for example: Figure 1 The diagram shows the structure of the cannula 1 and the three-way valve 2. The tail end of the connecting section 13 of the cannula 1 is connected to the connecting port 21 of the three-way valve 2. The three-way valve 2 is provided with a first connecting port 21, a second connecting port 22, and a third connecting port 23. The first connecting port is connected to the tail end of the connecting section 13 of the cannula 1, the second connecting port 22 is connected to the connecting tube 3 that connects to the drainage ball 4, and the third connecting port is provided with a sealing cap, which is used to open the sealing cap to administer medication or flushing solution.

[0043] The drainage ball device 4 is a negative pressure ball that can prevent backflow. It includes a negative pressure ball body, a conduit 3 connection port that is connected to the No. 2 connection port 22 of the three-way valve 2 structure, and an opening 41 at the tail of the drainage ball. The drainage fluid in the negative pressure ball is discharged through the opening 41 at the tail of the drainage ball.

[0044] The structural length of the device is set as follows: Figure 6 As shown, the distance from the first flushing hole 111 near the three-way valve end of the working section 11 to the fixing ring 12 is 10cm, which can effectively prevent the liquid in the tube from flowing out; the suture line of the insertion incision of the drainage tube is tied in the groove of the fixing ring 12 to fix the insertion tube 1, which can effectively prevent the insertion tube 1 from shifting; the distance from the fixing ring 12 to the three-way valve 2 is 5cm, that is, the length of the connecting section 13 of the insertion tube 1 is 5cm.

[0045] The inner diameter of the insertion tube 1 of the device is 0.5-0.8cm, and the height of the support tooth 112 is 1 / 3 of the inner diameter of the insertion tube 1.

[0046] Example 2: Steps for using the device

[0047] (1) Intubation procedure 1

[0048] Medical staff first insert the working segment 11 of the intubation tube 1 into the tissue cavity requiring irrigation, drainage, medication, and other treatments through the intubation incision 5 next to the surgical incision. The length of the working segment inserted into the skin is determined by the doctor based on the patient's surgical site. During the placement of the intubation tube 1, the flushing hole 111 near the fixation ring 12 enters the wound through the intubation incision 5 to complete the placement of the working segment 11 (the working segment of the intubation tube is a newly cut incision next to the surgical incision, less than 1 cm. The intubation tube is inserted into the joint cavity through this small opening, which usually only requires one stitch). If the working segment 11 of the intubation tube 1 is too long or excessive in the wound, the doctor can decide the length to retain and cut off the excess length. Then, the intubation incision 5 is sutured and the suture 6 of the intubation incision is knotted and fixed in the groove of the fixation ring 12 to complete the fixation of the intubation tube 1. After the operation, the exposed connecting tube 3 is fixed to the skin near the patient's wound with medical tape. If a patient needs to undergo treatment for several days using this device, the working section 11 of the cannula 1 can be left in the patient's wound. The specific time of placement will be determined by the doctor based on the patient's condition.

[0049] (2) Drainage operation

[0050] When performing drainage operations using this device, first confirm that the entire device is in accordance with... Figure 1 Complete the connection at the position, then flatten the negative pressure ball to turn on the negative pressure mode. Then rotate the three-way valve 2 to rotate the changeover switch to connect the valve's first connection port 21 and second connection port 22. Through the insertion tube 1 and connecting tube 3, drain the drainage fluid in the wound into the anti-backflow negative pressure drainage ball 4. After the drainage ball is full of drainage fluid, open the cap of the drainage port 41 at the tail of the drainage ball to release the drainage fluid. Then, tighten the cap, flatten the anti-backflow negative pressure drainage ball 4, and continue the drainage operation.

[0051] (3) Drug administration procedure

[0052] When administering medication using this device, first confirm that the entire device is in accordance with... Figure 1After ensuring the proper connection of the tubes, follow the drainage procedure described above to drain the fluid from the lesion. Then, rotate the three-way valve 2 to connect the first connection port 21 and the third connection port 23. Open the sealing cap of the third connection port 23. After disinfecting the connection port with disinfectant, inject the pre-prepared medication into the cannula 1 using a syringe. The medication will then flow through the connecting section 13 of the cannula 1 to the flushing hole 111 of the working section 11 of the cannula 1, into the soft tissue cavity, bone marrow cavity, or joint cavity of the patient with the lesion for treatment. After the medication is administered, turn the knob of the three-way valve 2 to the position where the first connection port 21 is closed, allowing the medication to fully act within the joint cavity. Finally, disinfect the third connection port 23 and the sealing cap again with disinfectant, tighten the sealing cap, and the medication administration is complete.

[0053] (4) Rinsing operation

[0054] When performing flushing operations using this device, at least two sets of this device are typically placed in advance during surgery. During flushing, one set serves as the inlet and the other as the outlet. Either one can be chosen as the inlet and the other as the outlet, and these positions can be interchanged depending on the patient's condition. First, open the drainage mode of the device set as the outlet, as detailed in the above operating procedure. Then, open the sealing cap of the third connection port 23 of the other device set as the flushing fluid inlet. After disinfecting the connection port with disinfectant, connect the flushing fluid to the third connection port 23 through the infusion set tube. Then, rotate the knob of the three-way valve 2 to connect the first connection port 21 and the third connection port 23. The flushing fluid will then flow sequentially through the third connection port 23 and the first connection port 21 into the cannula 1, and through the flushing orifice 111 of the working section 11 of the cannula 1 to treat the patient's lesioned soft tissue cavity, bone marrow cavity, or joint cavity. After passing through the lesion cavity, the flushing fluid drains out along the other outlet cannula device. After rinsing, turn the knob of the three-way valve 2 to the position of closing the first connection port 21 or to the drainage mode that connects the first connection port 21 and the second connection port 22. The specific mode should be determined by the doctor according to the patient's condition. Finally, disinfect the third connection port 23 and the sealing cap again with disinfectant, tighten the sealing cap, and the rinsing operation is complete.

[0055] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An integrated multifunctional cannulation device with flushing, drainage, and drug delivery functions, characterized in that, The device includes a cannula (1), a three-way valve (2), a connecting tube (3), and a backflow prevention negative pressure drainage ball (4). The inner surface of the insertion tube (1) is provided with support teeth (112) to prevent the tube body from being squeezed and causing closure. One end of the insertion tube (1) is a connecting section (13) connected to the three-way valve (2), and the other end is a working section (11) provided with a flushing hole (111). A fixing device for fixing the insertion tube (1) is also provided on the outer periphery of the insertion tube (1). The drug delivery device includes a cannula (1) structure and a three-way valve (2) structure; the cannula (1) is connected to the three-way valve (2) structure, and the three-way valve (2) is connected to the anti-backflow negative pressure drainage ball (4) through the connecting pipe (3).

2. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The inner surface of the cannula (1) is provided with triangular support teeth on 1 / 2 of the surface, and the other 1 / 2 of the surface is smooth.

3. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The support teeth (112) are distributed in a straight line on the inner surface of the cannula (1).

4. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The tail end of the working section (11) is shaped like a fish mouth, and the smooth surface of the working section (11) is provided with multiple flushing holes (111).

5. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 4, characterized in that, The multiple flow holes (111) are arranged in an alternating manner.

6. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The fixing device is a fixing ring (12) structure set on the outer periphery of the insertion tube (1), and the fixing ring (12) structure is set at 10cm from the first flushing hole (111) near the end of the far working section (11).

7. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 6, characterized in that, The fixing ring (12) is an "I" shaped structure with a low middle and high ends.

8. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The anti-backflow negative pressure drainage ball (4) is a negative pressure ball that can prevent liquid backflow. The negative pressure ball is connected to the second connection port (22) of the three-way valve (2) structure through the connecting pipe (3) to allow the liquid in the insertion tube (1) to flow to the anti-backflow negative pressure drainage ball (4) through the three-way valve (2) and the connecting pipe (3). The liquid collected in the anti-backflow negative pressure drainage ball (4) cannot flow in reverse, but can flow out from the drain hole (41) at the tail of the anti-backflow negative pressure drainage ball (4).

9. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 2, characterized in that, The height of the triangular support tooth is no greater than 1 / 3 of the inner diameter of the insertion tube (1).

10. The integrated multifunctional cannulation device with flushing, drainage, and drug administration functions according to claim 1, characterized in that, The connection method of the connecting pipe (3) to the No. 2 connection port (22) of the three-way valve (2) structure and the connection method of the insertion pipe (1) to the No. 1 connection port (21) of the three-way valve (2) structure are both threaded tightening and fixing.

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