B-ultrasonic guided kidney cyst puncture bag and treatment equipment

Abstract

The utility model discloses a kind of B ultrasound guided under kidney cyst puncture bag and treatment equipment, including puncture needle, made of metal material, it is tubular structure, inside has guide channel;Guide wire, with the pipe inner diameter of guide channel is matched, so that the guide wire can be inserted into guide channel, the head end of guide wire is flexible piece;Drainage tube, it is tubular structure, drainage tube pipe inner diameter is matched with guide wire, so that guide wire can be inserted into drainage tube, the pipe orifice position of drainage tube front end is equipped with developing ring.The utility model provides a kind of B ultrasound guided under kidney cyst puncture bag and treatment equipment, its can make the front end of drainage tube develop under B ultrasound, puncture needle can be inserted into along the original puncture channel multiple times under the guidance of guide wire, reduce puncture injury, for complex kidney cyst, the separating membrane in cyst cavity can be punctured by secondary needle insertion of puncture needle, realize the puncture treatment of complex kidney cyst.

Description

Technical Field

[0001] This utility model relates to the technical field of nephrology surgical equipment, specifically a renal cyst puncture kit and treatment device under ultrasound guidance. Background Technology

[0002] For the treatment of renal cysts, nephrological surgery involves using a puncture needle under ultrasound guidance to puncture the cyst wall and aspirate the cyst fluid to achieve the therapeutic effect. Compared with endoscopic treatment methods used in surgical procedures, the puncture and aspiration of cyst fluid under ultrasound guidance results in a smaller wound, significantly reducing trauma to the patient and facilitating postoperative recovery.

[0003] The existing ultrasound-guided renal cyst aspiration technique simply involves inserting a drainage tube over the needle. After the needle is inserted, it is withdrawn, and the exposed end of the tube is connected to a syringe. The surgeon then uses the negative pressure generated by the syringe to aspirate the cyst fluid. However, this existing needle and the procedures performed using it present at least the following problems: 1. The drainage tube is difficult to visualize and identify under B-ultrasound. As the cyst cavity shrinks during aspiration and the drainage tube is accidentally pulled during the aspiration process, the front end of the drainage tube may fall out of the cyst cavity. In this case, a second puncture operation is required, and the patient will have to endure the injury of a second puncture. 2. When aspiration is obstructed by the drainage tube and the cystic cavity is still visible on ultrasound, it is impossible to determine whether the incomplete aspiration is due to the drainage tube dislodging or whether the cyst is a complex renal cyst (double-lumen or multi-lumen). 3. The process of aspirating with a syringe is laborious for surgeons, especially for larger cysts that require multiple aspirations. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in related technologies: to provide a renal cyst puncture kit and treatment device under ultrasound guidance, which enables the front end of the drainage tube to be visualized under ultrasound, and the puncture needle can be inserted multiple times along the original puncture channel under the guidance of the guide wire, without causing additional puncture damage to the patient. In addition, for complex renal cysts, the puncture needle can puncture the septal membrane in the cyst cavity through a second insertion, thereby achieving puncture treatment of complex renal cysts. The entire aspiration process is automatically achieved by using a suction pump.

[0005] Therefore, one objective of this utility model is to provide a renal cyst puncture kit and treatment device under ultrasound guidance, including... The puncture needle is made of metal and has a tubular structure. The front end of the puncture needle has a needle tip and an axially extending guide channel inside. The guidewire is matched with the inner diameter of the guide channel so that it can be inserted into the guide channel, and the tip of the guidewire is a flexible element. The drainage tube has a tubular structure, and the inner diameter of the drainage tube matches the guide wire so that the guide wire can be inserted into the drainage tube. The tube opening at the front end of the drainage tube is provided with a imaging ring that can be visualized under B-ultrasound.

[0006] On the one hand, the imaging ring allows the position of the drainage tube's tip to be clearly visualized under ultrasound, enabling accurate determination of whether the drainage tube's tip is within the cyst cavity. On the other hand, if the cyst cavity is still present under ultrasound and the cyst is diagnosed as complex, a guidewire can be used to guide the puncture needle back along the original puncture channel. The guidewire can also guide the needle tip to puncture the septal membrane within the cyst cavity. Finally, under the guidance of the guidewire, the shunt tube is reintroduced to complete the sequential puncture and aspiration of each chamber within the complex cyst, effectively achieving ultrasound-guided puncture treatment of complex renal cysts.

[0007] According to one example of the present invention, the developing ring is a metal ring embedded in the opening of the drainage tube.

[0008] According to one example of the present invention, the imaging ring is a metal layer coated on the front end of the drainage tube.

[0009] According to one example of this invention, the outer wall of the puncture needle has graduations for marking the needle length. The depth of needle insertion can be visually determined using these graduations.

[0010] According to one example of this utility model, the puncture kit further includes a fixing patch. The back of the fixing patch has an adhesive layer, and the fixing patch has a central hole for the drainage tube to pass through. The front of the fixing patch has a friction damping element arranged around the central hole, which adheres to the outer wall of the drainage tube when the drainage tube passes through the central hole. The fixing patch can be attached to the patient's body, providing friction damping for axial movement of the drainage tube and preventing accidental movement of the drainage tube during aspiration.

[0011] According to one example of this utility model, the front end of the drainage tube is provided with an anti-clogging cap. The anti-clogging cap protrudes outward along the axial direction of the drainage tube from the front end and is fixedly connected to the drainage tube. A gap channel for fluid passage is formed between the anti-clogging cap and the opening at the front end of the drainage tube. The anti-clogging cap can prevent the opening of the drainage tube from being sucked together with the bladder wall, thus preventing blockage of the drainage tube opening and ensuring smooth suction.

[0012] According to one example of this invention, the drainage tube has one or more side holes on its outer wall near the front opening. Even when the axial opening of the drainage tube is blocked by the cyst wall, the fluid within the cyst cavity can be continued to be aspirated through the side holes, ensuring a smooth aspiration process.

[0013] According to one example of this utility model, a connecting tube is also included, the front end of which has a connector that communicates with the rear end of the drainage tube. Since the drainage tube needs to be kept aseptic, one end of the connecting tube can be connected to the drainage tube to maintain a sterile environment, while the other end of the connecting tube can be connected to a sterile external device, thereby ensuring that the drainage tube remains sterile at all times.

[0014] Another objective of this invention is to provide a treatment device, comprising a main unit with a suction pump and a drug injection pump, and the aforementioned ultrasound-guided complex renal cyst puncture kit. The rear end of the connecting tube is connected to the suction port of the suction pump and the drug injection port of the drug injection pump via a three-way reversing valve. The suction pump automatically aspirates the cyst fluid, eliminating the need for manual aspiration with a syringe by the surgeon, thus improving efficiency and reducing the surgeon's workload. Furthermore, the drug injection pump injects a sclerosing agent into the cyst cavity, allowing for drug treatment after the cyst fluid is aspirated.

[0015] The above-mentioned technical solution has the following advantages or beneficial effects: First, the imaging ring allows the position of the front end of the drainage tube to be clearly visualized under ultrasound, enabling accurate determination of whether the front end of the drainage tube is within the cyst cavity. Second, when the cyst cavity is still present under ultrasound and the cyst is determined to be complex, a guide wire can be used to guide the puncture needle back along the original puncture channel. The guide wire can also guide the needle tip to puncture the septal membrane within the cyst cavity. Under the guidance of the guide wire, the shunt tube is reintroduced to complete the sequential puncture and aspiration of each chamber in the complex cyst, effectively achieving ultrasound-guided puncture treatment of complex renal cysts. Third, the drainage tube is connected to the aspiration pump and the injection pump via a three-way reversing valve. This allows for automatic aspiration of cyst fluid via the aspiration pump and automatic injection of a standard dose of sclerosing agent via the injection pump after aspiration. The entire aspiration and injection process is automated, reducing the workload for the surgeon.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the ultrasound-guided renal cyst aspiration kit of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure for inserting a guidewire into a puncture needle.

[0019] Figure 3 This is a schematic diagram of the structure for fixing the sleeve to the outside of the drainage tube.

[0020] Figure 4This is a schematic diagram of the guidewire inserted into the drainage tube.

[0021] Figure 5 This is a schematic diagram showing the connection between the rear end of the drainage tube and the treatment equipment.

[0022] Figure 6 for Figure 5 A magnified view of a portion of region "A".

[0023] The components include: 1. Puncture needle; 1.1. Needle tip; 1.2. Guide channel; 1.3. Scale line; 2. Guide wire; 2.1. Flexible component; 3. Drainage tube; 3.1. Side hole; 4. Imaging ring; 5. Fixing tape; 5.1. Center hole; 5.2. Friction damping component; 6. Anti-clogging cap; 7. Gap channel; 8. Connecting tube; 8.1. Connector; 9. Main unit; 10. Suction pump; 11. Injection pump; 12. Three-way reversing valve; 13. Sterile packaging bag; 14. Disposable disinfectant iodine cotton balls. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] The following description, with reference to the accompanying drawings, details an ultrasound-guided renal cyst aspiration kit and treatment device according to an embodiment of the present invention.

[0026] This invention provides a renal cyst aspiration kit under ultrasound guidance, as shown in the figure. It includes a puncture needle 1, a guide wire 2, and a drainage tube 3, all housed in a sterile packaging bag 13. The puncture needle 1 is made of metal and has a tubular structure. The front end of the puncture needle 1 has a needle tip 1.1, and an axially extending guide channel 1.2 inside. The front end of the guide channel 1.2 forms a guide wire outlet at the location of the needle tip 1.1, and the rear end of the guide channel 1.2 extends towards the rear end of the puncture needle 1. The guide wire 2 has an inlet; the outer diameter of the guide wire 2 matches the inner diameter of the guide channel 1.2 so that the guide wire 2 can be inserted into the guide channel 1.2, and the tip of the guide wire 2 is a flexible part 2.1 to avoid damage when the tip of the guide wire 2 touches the cyst wall; the drainage tube 3 has a tubular structure, and the inner diameter of the drainage tube 3 matches the guide wire 2 so that the guide wire 2 can be inserted into the drainage tube 3, and the front end of the drainage tube 3 is provided with a imaging ring 4 that can be visualized under B-ultrasound.

[0027] One of the preferred examples based on this developing ring 4: like Figure 6As shown, the imaging ring 4 is a metal ring embedded in the opening of the drainage tube 3. Specifically, a metal ring is fitted onto the outer wall of the drainage tube 3, and the metal ring is fixedly connected to the outer wall of the drainage tube 3. The outer surface of the metal ring is machined into a smooth surface to reduce sharp edges and corners.

[0028] A second preferred example based on the developing ring 4: The imaging ring 4 is a metal layer coated on the front end of the drainage tube 3. This metal layer can be formed on the surface of the drainage tube 3 by existing processes such as electroplating, bonding, and spraying. This metal layer can present a visible image under B-ultrasound, and therefore, this metal layer can serve as the imaging ring 4.

[0029] In a preferred embodiment, the outer wall of the puncture needle 1 has a scale line 1.3 for marking the length of the puncture needle 1.

[0030] Preferably, the ultrasound-guided renal cyst aspiration kit further includes a fixation patch 5, such as... Figure 3 As shown, the back of the fixing patch 5 has an adhesive layer, and the fixing patch 5 has a central hole 5.1 through which the drainage tube 3 passes. The front of the fixing patch 5 has a friction damping element 5.2 arranged around the central hole 5.1. When the drainage tube 3 passes through the central hole 5.1, the friction damping element 5.2 is in contact with the outer wall of the drainage tube 3. The friction damping element 5.2 is a ring structure or a C-shaped structure with an opening. The frictional resistance between the friction damping element 5.2 and the outer wall of the drainage tube 3 provides a damping effect, reducing the axial movement of the drainage tube 3 during the aspiration of the renal cyst.

[0031] Based on the above-mentioned preferred method for drainage tube 3, such as Figure 6 As shown, the front end of the drainage tube 3 is provided with an anti-blocking cap 6. The anti-blocking cap 6 is a ring structure. The anti-blocking cap 6 is exposed outside the front end of the drainage tube 3 along the axial direction of the drainage tube 3 and is fixedly connected to the drainage tube 3 by a connecting rod. A gap channel 7 for fluid to pass through is formed between the anti-blocking cap 6 and the opening of the front end of the drainage tube 3.

[0032] See Figure 6 As shown, the drainage tube 3 has one or more side holes 3.1 on its outer wall near the front end of the tube. Specifically, the multiple side holes 3.1 are arranged at intervals along the circumference of the drainage tube 3.

[0033] Preferably, the ultrasound-guided renal cyst puncture kit further includes a connecting tube 8, the front end of which has a connector 8.1 that connects to the rear end of the drainage tube 3, and the rear end of the connecting tube 8 is provided with a second connector.

[0034] Based on the ultrasound-guided renal cyst aspiration kit described in the above embodiments, this utility model further provides a treatment device, which includes a main unit 9 with aspiration and medication administration functions, and the aspiration kit described in the above embodiments, such as... Figure 5 As shown, the main unit 9 is equipped with a suction pump 10, a medication pump 11, and a three-way reversing valve 12. The second connector at the rear end of the connecting pipe 8 is connected to one of the ports of the three-way reversing valve 12. The suction port of the suction pump 10 and the medication outlet of the medication pump 11 are connected to the second and third ports of the three-way reversing valve 12, respectively. Thus, the three-way reversing valve 12 can connect either the suction port of the suction pump 10 to the second connector of the connecting pipe 8, or the medication outlet of the medication pump 11 to the second connector of the connecting pipe 8. When the suction port of the suction pump 10 is connected to the second connector of the connecting pipe 8, the negative pressure suction provided by the suction pump 10 can draw out the fluid in the renal cyst through the drainage tube and the connecting pipe 8. After the renal cyst has been reduced to the point where the fluid aspiration requirement is met under ultrasound, the three-way reversing valve 12 switches to connect the medication outlet of the medication pump 11 to the second connector of the connecting pipe 8. The medication in the medication pump 11 can then be pumped into the renal cyst according to the prescribed dosage, achieving the purpose of drug treatment. In this embodiment, the drug pumped out by the injection pump 11 is a sclerosing agent, which is a drug currently used in nephrology surgery, including but not limited to polidocanol.

[0035] Preferably, the three-way directional valve 12 is an electromagnetic directional valve, which is communicatively connected to the controller on the host 9, so that the host 9 can automatically control the electromagnetic directional valve.

[0036] Furthermore, the host 9 is equipped with a metering device for detecting the dosage of the drug pumped out by the injection pump 11, or the injection pump 11 is a metering pump with metering function. In this embodiment, the metering device is a commercially available conventional device in the pharmaceutical field. The monitoring of the dosage of the pumped drug is the basic function of the metering device itself. Therefore, the specific structure of the metering device will not be described in detail in this embodiment.

[0037] Based on the preferred embodiment described above, the sterile packaging bag 13 is further provided with a sterile drape, tweezers, and disposable sterile iodine cotton balls 14.

[0038] The specific treatment process of renal cysts under ultrasound guidance using the puncture kit and treatment equipment in this embodiment is as follows: Step 1: Open the sterile packaging bag 13 and take out the disposable puncture needle 1, guide wire 2 and drainage tube 3; Step 2: Under ultrasound guidance, use a puncture needle 1 to penetrate the wall of the patient's renal cyst; Step 3: Insert guidewire 2 through the guide channel 1.2 of puncture needle 1. Since the tip of guidewire 2 is a soft flexible part 2.1, avoid damaging the kidney tissue during the insertion of the guidewire tip. Then withdraw puncture needle 1. Step 4: Insert the drainage tube 3 under the guidance of the guide wire 2. The front end of the drainage tube 3 is equipped with a contrast ring 4, which can be visualized under B-ultrasound. Then, remove the guide wire 2. Step 5: Connect the rear end of the drainage tube 3 to the three-way reversing valve on the main unit 9. At this time, the suction pump 10 will work to aspirate the cyst fluid in the kidney cyst. Step 6: Observe the ultrasound image. If the ultrasound still shows a cystic cavity, then the cystic cavity is determined to be a complex renal cyst, which has multiple compartments. Step 7: Reinsert guidewire 2, then remove drainage tube 3, adjust the position of guidewire 2, reinsert puncture needle 1 under the guidance of guidewire 2, then remove guidewire, and use puncture needle 1 to break through the septum in the renal cyst again. Step 8: Repeat step 4 until the cyst cavity can no longer be observed under ultrasound in step 6.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0040] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. A kit for ultrasound-guided renal cyst aspiration, characterized in that: include The puncture needle (1) is made of metal and has a tubular structure. The front end of the puncture needle (1) has a needle tip (1.1) and an axially extending guide channel (1.2) inside. The guide wire (2) is matched with the inner diameter of the guide channel (1.2), and the head end of the guide wire (2) is a flexible element (2.1). The drainage tube (3) has a tubular structure and the inner diameter of the drainage tube (3) matches that of the guide wire (2). The front end of the drainage tube (3) is provided with a imaging ring (4) that can be visualized under B-ultrasound.

2. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 1, characterized in that: The developing ring (4) is a metal ring that is embedded in the opening of the drainage tube (3).

3. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 1, characterized in that: The developing ring (4) is a metal layer coated on the front end of the drainage tube (3).

4. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 1, characterized in that: The outer wall of the puncture needle (1) has a scale line (1.3) for marking the length of the puncture needle (1).

5. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 1, characterized in that: It also includes a fixing sticker (5), which has an adhesive layer on its back side, a central hole (5.1) through which the drainage tube (3) passes, and a friction damping element (5.2) arranged around the central hole (5.1) on the front side of the fixing sticker (5). When the drainage tube (3) passes through the central hole (5.1), the friction damping element (5.2) is attached to the outer wall of the drainage tube (3).

6. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 1, characterized in that: The front end of the drainage tube (3) is provided with an anti-blocking cap (6). The anti-blocking cap (6) is exposed outside the front end of the drainage tube (3) along the axial direction of the drainage tube (3) and is fixedly connected to the drainage tube (3). A gap channel (7) for fluid to pass through is formed between the anti-blocking cap (6) and the opening of the front end of the drainage tube (3).

7. The B-ultrasound guided percutaneous renal cyst aspiration set according to claim 6, characterized in that: The drainage tube (3) has one or more side holes (3.1) on the outer wall near the front end of the tube opening.

8. The B-ultrasound guided percutaneous renal cyst treatment kit according to any one of claims 1-7, characterized in that: It also includes a connecting tube (8), the front end of which has a connector (8.1) that connects to the rear end of the drainage tube (3).

9. A treatment device characterized by: The device includes a main unit (9) with a suction pump (10) and a drug injection pump (11), and the ultrasound-guided renal cyst puncture kit of claim 8. The rear end of the connecting tube (8) is connected to the suction port of the suction pump (10) and the drug injection port of the drug injection pump (11) through a three-way reversing valve (12).

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