Puncture bag for chest drainage

Abstract

The utility model belongs to the field of medical instruments, and discloses a puncture bag for chest drainage, which comprises a puncture needle. The guide wire can be arranged in the puncture needle in a penetrating manner; the tip of the guide wire is a J-shaped front end, and the outer wall of the guide wire is provided with a guide wire mark; the expansion tube can be arranged on the guide wire in a sleeving manner; the front portion of the expansion tube is provided with an expansion tube bend, the tail end of the expansion tube is provided with a protruding expansion tube tail end mark, the length from the expansion tube bend to the tail end is larger than the length from the expansion tube bend to the front end, the bending direction of the expansion tube bend is the same as the orientation of the expansion tube tail end mark, and the total length of the expansion tube is equal to the length from the guide wire mark to the J-shaped front end. The drainage tube can be arranged on the guide wire in a sleeving manner. After the guide wire is arranged outside the expansion tube in a penetrating mode, the expansion tube is rotated to the tail end of the expansion tube, the mark faces the lowest position of the thoracic cavity of a patient to indicate the direction of the guide wire, and therefore the opening of the drainage tube is placed in the lowest position of the thoracic cavity, and accurate placement type drainage of pleural effusion is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical instrument related technical field, more specifically, it relates to a puncture bag for chest drainage. BACKGROUND

[0002] The pleural cavity is a potential space between the lung and the chest wall. Under normal physiological conditions, there is a thin layer of fluid on the surface of the visceral and parietal pleura, which plays a lubricating role during respiratory movement. During each respiratory cycle, the shape and pressure of the pleural cavity undergo significant changes, which causes the fluid in the chest cavity to be continuously filtered out and absorbed, thus maintaining a dynamic balance. However, when any factor causes the fluid in the pleural cavity to accumulate too quickly or the absorption process to be too slow, it will cause pleural effusion, commonly known as pleural effusion. Thoracentesis drainage, as an effective method for treating pleural effusion, has been widely used in clinical practice.

[0003] In clinical practice, a thoracentesis pack is used to perform thoracentesis drainage of pleural effusion. Its basic configuration includes a puncture needle, a guide wire, a dilator, and a drainage tube. These tools greatly improve the convenience of doctors performing thoracentesis drainage under the premise of ensuring aseptic operation. For example, a closed thoracic drainage pack introduced in patent CN210494719U facilitates the insertion of the tube into the patient's chest cavity, is easy to operate, and saves time. In addition, the device is also suitable for providing emergency treatment for patients with chest trauma at accident scenes outside the hospital and on the front lines during wartime.

[0004] However, the existing device still has some shortcomings in the operation process: the direction of the guide wire is difficult to determine, and the opening position of the drainage tube is randomly above, left, right, or below the puncture point. Due to the effect of gravity, pleural effusion often accumulates in a lower position, leading to puncture failure and the need for repeated puncture. In addition, the exact position of the drainage tube is difficult to accurately locate, and when the amount of effusion is small and the opening of the drainage tube is located in the upper part of the chest cavity, the effusion may not be able to be drained out. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a puncture pack for chest drainage, which is equipped with a dilator in addition to the basic tools for thoracentesis drainage. The front part of the dilator is provided with a dilator bend, and the end is provided with a protruding dilator tail end marker. The bending direction of the dilator bend is the same as the direction of the dilator tail end marker, thereby indicating the direction of the guide wire. This solves the technical problem of unstable drainage caused by the inability to determine the position of the drainage tube in existing devices of this type.

[0006] To achieve the above-mentioned purpose, according to the utility model provides a puncture pack for chest drainage, which comprises:

[0007] A puncture needle;

[0008] A guide wire capable of being arranged in the puncture needle; the tip of the guide wire is a J-shaped front end, and the outer wall is provided with a guide wire mark;

[0009] An expansion tube capable of being arranged on the guide wire; the expansion tube is provided with an expansion tube bend at the front part, and a convex expansion tube tail mark at the end; the length of the expansion tube bend from the end is greater than the length from the front end, and the bending direction of the expansion tube bend is the same as the direction of the expansion tube tail mark; the total length of the expansion tube is equal to the length of the J-shaped front end from the guide wire mark;

[0010] A drainage tube capable of being arranged on the guide wire.

[0011] The expansion tube bend is a memory type bend, and can restore flatness under external force;

[0012] The included angle of the expansion tube bend is 100-120°.

[0013] Preferably, the total length of the expansion tube is 12-15 cm; the length of the expansion tube bend from the end of the expansion tube is 9-12 cm.

[0014] Preferably, the J-shaped front end is a flexible structure, and can restore flatness under external force.

[0015] Preferably, the tail end of the puncture needle is a double-pass split structure, which is a booster interface and a syringe interface, respectively;

[0016] The outer wall of the puncture needle is provided with a puncture needle scale mark for observing the puncture depth.

[0017] Preferably, the puncture needle scale mark (111) is a millimeter scale; the length of the puncture needle (11) is 5 cm, 10 cm or 15 cm;

[0018] The diameter of the guide wire (12) is 0.035 inches; the length of the guide wire (12) is 40-50 cm;

[0019] The materials of the puncture needle (11) and the guide wire (12) are both 304 stainless steel.

[0020] Preferably, the puncture kit further comprises a booster;

[0021] The booster is a hollow tubular structure, provided with a booster front end opening at the front end, and a booster side opening at the side surface 2-5 cm away from the booster front end; wherein the booster front end opening can be sleeved with the booster interface on the puncture needle, for pushing the guide wire, and the booster side opening (132) is used for pushing the guide wire forward.

[0022] Preferably, the side of the drainage tube (15) is provided with a drainage tube scale mark (151) for observing the insertion depth.

[0023] Preferably, the tube length of the drainage tube (15) is 30-50 cm.

[0024] The materials of the dilating tube (14) and the drainage tube (15) are medical silica gel, and the diameters are both 10 Fr.

[0025] Preferably, the puncture further comprises a tray for placing the puncture needle, the guide wire, the dilating tube and the drainage tube, and a sterile wrapping cloth wrapped outside the tray.

[0026] Overall, compared with the prior art, the above technical scheme conceived by the utility model mainly has the following technical advantages:

[0027] According to the puncture kit for thoracic drainage provided by the utility model, in addition to the basic tools for thoracic puncture and drainage, the kit is further provided with a guide wire with guide wire marks and a dilating tube with a bend and a tail end mark. After the guide wire is arranged in the dilating tube, the direction of the guide wire is indicated based on rotating the dilating tube to the tail end mark of the dilating tube facing the lowest part of the thorax of the patient, so that the opening of the drainage tube is at the lowest part of the thorax, and precise placement type drainage of the thoracic effusion is realized.

[0028] Specifically, the guide wire is pushed into the puncture needle, the puncture needle is pulled out, and then the guide wire is arranged in the dilating tube. The dilating tube is rotated to the tail end mark of the dilating tube facing the lowest part of the thorax of the patient in the current body position. Based on the guide wire mark on the guide wire, the length of the guide wire mark from the front end of the J-shaped part is equal to the total length of the dilating tube, which indicates that the guide wire is retracted to the front end of the J-shaped part and is flush with the opening of the dilating tube, so as to facilitate the rotation of the dilating tube and the guide wire together in the correct direction. The front part of the dilating tube has a dilating tube bend, and the tail end of the dilating tube has a protruding tail end mark. The bending direction is the same as the direction of the tail end mark of the dilating tube, so that the direction of the guide wire is indicated by the bending direction of the dilating tube in the body, and the drainage positioning is performed. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The utility model discloses a puncture kit for thoracic drainage.

[0030] Figure 2 The utility model discloses a puncture kit for thoracic drainage.

[0031] Figure 3 The utility model discloses a puncture kit for thoracic drainage.

[0032] Figure 4 The utility model discloses a puncture kit for thoracic drainage.

[0033] Figure 5 The front structure diagram of the guide wire (in the booster) of the utility model.

[0034] Figure 6 The front structure diagram of the drainage tube of the utility model.

[0035] Figure 7 The front structure of the expansion tube of the utility model and the guide wire is directed to the low part of the chest cavity.

[0036] In all the drawings, the same reference signs are used to indicate the same structures, wherein:

[0037] 1-tray; 11-puncture needle; 111-puncture needle scale mark; 112-booster interface; 113-syringe interface; 12-guide wire; 121-guide wire mark; 122-J-shaped front end; 13-booster; 131-booster opening; 132-booster side opening; 133-booster storage card slot; 14-expansion tube; 141-expansion tube tail end mark; 142-expansion tube bending; 15-drainage tube; 151-drainage tube scale mark; 152-drainage tube storage card slot; 2-sterile wrapping cloth. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0039] According to the utility model, a thoracic drainage puncture kit is provided, please refer to Figure 1 and Figure 2 respectively, the internal structure diagram of the puncture kit and the state diagram of the puncture kit covered with sterile wrapping cloth, the thoracic drainage implantable puncture kit, comprising

[0040] a puncture needle;

[0041] a guide wire capable of being arranged in the puncture needle; the tip of the guide wire is a J-shaped front end, and a ring of guide wire marks is provided on the outer wall;

[0042] an expansion tube capable of being sleeved on the guide wire; the expansion tube is provided with an expansion tube bending at the front part, a convex expansion tube tail end mark at the tail end, the length of the expansion tube bending from the tail end is greater than the length from the front end, and the bending direction of the expansion tube bending is the same as the direction of the expansion tube tail end mark, and the total length of the expansion tube is equal to the length of the J-shaped front end from the guide wire mark;

[0043] A drainage tube can be sleeved on the guide wire, and the front end of the drainage tube is flush with the front end of the J-shaped front end.

[0044] The thoracic drainage implantable puncture kit is provided with a thoracic puncture drainage basic tool, and a bent dilating tube is further arranged in the implantable puncture kit. The bent front end enters the thoracic cavity, and the bending direction, i.e. the direction of the guide wire in the dilating tube, plays an indicating role, so that the drainage tube is successfully placed in a low position. Thus, the technical problems of the existing device that the position of the drainage tube cannot be determined and the drainage is unstable are solved.

[0045] Specifically, the guide wire 12 is provided with a guide wire mark 121, and the tip is a J-shaped front end 122. The length of the guide wire mark 121 from the J-shaped front end 122 is equal to the total length of the dilating tube 14. The guide wire 12 is retracted to the guide wire mark 121, which is exposed at the tail end opening of the dilating tube 12. At this time, the guide wire is retracted to the J-shaped front end, which is flush with the opening of the dilating tube, so that the dilating tube can rotate together with the guide wire to point to the correct direction. The front part of the dilating tube 14 has a dilating tube bend 142, and the end is provided with a protruding dilating tube tail end mark 141. The length of the dilating tube bend 142 from the end is greater than the length from the front end, and the bending direction is the same as the direction of the dilating tube tail end mark 141, so that the direction of the dilating tube bend 142 in the body indicates the position of the guide wire 12 to find the accurate placement of the drainage tube.

[0046] In some embodiments, the dilating tube bend 142 is a memory type bend, which can recover to be flat under external force. The length of the dilating tube bend 142 from the end of the dilating tube 14 is 9-12 cm, and the included angle at the dilating tube bend 142 is 100-120°, i.e. the included angle between the extension line of the end tube body and the front tube body at the dilating tube bend is 60-80°, preferably 60°. That is, the dilating tube 14 has a memory type bend (dilating tube bend 142) at a distance of 9-12 cm from the tail, and the direction of the dilating tube tail end mark 141 and the dilating tube bend 142 is the same as the direction of the tip of the dilating tube 12, which plays a guiding role, so that the dilating tube is placed in the thoracic cavity and cooperates with the guide wire to determine the accurate drainage position.

[0047] In some embodiments, the total length of the dilating tube is 12-15 cm, i.e. the length of the guide wire mark 121 from the J-shaped front end 122 is 12-15 cm, and the length of the tip of the guide wire 12 is equal to the total length of the dilating tube 14.

[0048] In some embodiments, as shown in FIG. 6, the dilating tube 14 is provided with a dilating tube tail end mark 141, and the dilating tube tail end mark 141 is a protruding mark. Figure 3The front structure of the puncture needle 11 is shown, and the tail end of the puncture needle 11 is a double-pass split structure; one is a booster interface 112, which is used in conjunction with the booster 13, and the other is an injector interface 113, which is used in conjunction with the injector, for temporarily using the injector to extract part of the effusion. The puncture needle 11 has a puncture needle scale mark 111 on the outer wall, which is used to observe the puncture depth. The puncture needle scale mark 111 is a millimeter scale; the diameter of the puncture needle scale mark 111 is 18G (outer diameter x inner diameter: 1.27mm x 1.05mm), and the length can be selected from 5cm, 10cm and 15cm.

[0049] In some embodiments, as shown in the left drawing of FIG. 1, Figure 4 the front structure of the guide wire 12 is shown, and the tip of the guide wire 12 is a J-shaped front end 122, which is a flexible structure and can recover to be flat under external force. The diameter of the guide wire 12 is 0.035 inches (about 0.889mm), and the length of the guide wire is 40cm-50cm.

[0050] In some embodiments, as shown in the right drawing of FIG. 1, Figure 4 the front structure of the booster is shown, and the booster 13 is a hollow tube; the booster 13 is provided with a booster front end opening 131 and a booster side opening 132 at a side position 2-5cm away from the front end of the booster 13. The booster front end opening 131 is used in conjunction with the booster interface 112 on the puncture needle 11, which is convenient for pushing the guide wire 12; the J-shaped front end 122 of the guide wire is placed in the booster 13, and the guide wire is pushed forward through the booster side opening 132 (see FIG. 2). Figure 5

[0051] In some embodiments, as shown in the right drawing of FIG. 1, Figure 6 the front structure of the drainage tube is shown, and the side of the tube body of the drainage tube 15 has a drainage tube scale mark 151, which is convenient for observing the insertion depth. The length of the drainage tube is 30cm-50cm.

[0052] In some embodiments, the inner diameter of the needle tube of the puncture needle 11 is greater than the diameter of the guide wire 12, which can accommodate the guide wire to pass through. At the same time, puncture needles, guide wires and drainage tubes of different lengths are selected according to the body type of the patient, the amount of effusion and the position of the effusion.

[0053] In some embodiments, the materials of the puncture needle 11 and the guide wire 12 are both 304 stainless steel; the materials of the dilating tube 14 and the drainage tube 15 are medical silica gel, and the diameters are both 10Fr (outer diameter x inner diameter: 3.3mm x 3.6mm).

[0054] In some embodiments, the booster 13 further includes a booster storage card slot 133, and the drainage tube 15 further includes a drainage tube storage card slot 152, which is used for orderly storage of the booster and the drainage tube.

[0055] ​In some embodiments, the thoracic drainage puncture kit further comprises a sterile drape 2 wrapped outside the tray 1.

[0056] The working principle of the utility model is: according to the specification operation line thoracocentesis, determine the appropriate puncture point, then carry out puncture drainage;Slowly insert the puncture needle 11, feel the breakthrough feeling, observe the puncture needle scale mark 111, through the syringe interface 113 back to the effusion or ultrasound verification puncture needle enters the pleural cavity, prompt puncture success, prompt puncture success;Subsequently by the booster interface 112 push in the guide wire 12, slowly pull out the puncture needle 11, keep the guide wire 12 (after entering the body, turn in the random direction and advance again);Subsequently pass through the guide wire 12, induct the dilatation tube 14, back the guide wire 12 to the guide wire mark 121 exposure, rotate the dilatation tube 14 to the dilatation tube tail end mark 141 towards the lowest part of the chest cavity under the current body position of the patient, re-push the guide wire 12, the state at this time is referred to Figure 7 ;Back the dilatation tube 14, keep the guide wire 12 position fixed, pass through the guide wire 12 and insert the drainage tube 15, at this moment the drainage tube 15 opens in the lowest part of the chest cavity under the current body position of the patient, observe the drainage tube scale mark 151 to determine the drainage depth. Finally, back the guide wire 12, keep the drainage tube 151 unchanged.

[0057] The remaining steps are the same as general thoracocentesis drainage operation, the precise placement puncture kit can make the drainage tube enter direction, reach position accurate, open in the lowest part of the chest cavity, ensure the smooth progress of drainage.

[0058] Obviously, those skilled in the art can make various modifications and changes to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and changes of the utility model are within the scope of the utility model and its equivalent technology, the utility model also intends to include these modifications and changes. The above-described embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope is not limited thereto. The equivalent replacement or transformation made by those skilled in the art on the basis of the utility model is within the protection scope of the utility model.

Claims

1. A thoracic drainage puncture kit, characterized by, It comprises: a puncture needle (11); a guide wire (12) capable of being arranged in the puncture needle (11); the tip of the guide wire (12) is a J-shaped front end (122) with a guide wire mark (121) on the outer wall; an expansion tube (14) capable of being arranged on the guide wire (12); the expansion tube (14) is provided with an expansion tube bend (142) at the front part and a convex expansion tube tail mark (141) at the end; the length of the expansion tube bend (142) from the end is greater than the length from the front end, and the bending direction of the expansion tube bend (142) is the same as the direction of the expansion tube tail mark (141); the total length of the expansion tube (14) is equal to the length of the J-shaped front end (122) from the guide wire mark (121); a drainage tube (15) capable of being arranged on the guide wire (12).

2. The puncture kit for chest drainage according to claim 1, wherein the expansion tube bend (142) is a memory type bend and can restore flatness under external force; the included angle at the expansion tube bend (142) is 100-120°.

3. The puncture kit for chest drainage according to claim 1, wherein the total length of the expansion tube (14) is 12-15 cm; the length of the expansion tube bend (142) from the end of the expansion tube (14) is 9-12 cm.

4. The puncture kit for chest drainage according to claim 1, wherein the J-shaped front end (122) is a flexible structure and can restore flatness under external force.

5. The puncture kit for chest drainage according to claim 1, wherein the tail end of the puncture needle (11) is a double-pass split structure, which is respectively a booster interface (112) and a syringe interface (113); the outer wall of the puncture needle (11) is provided with a puncture needle scale mark (111) for observing the puncture depth.

6. The puncture kit for chest drainage according to claim 5, wherein the puncture needle scale mark (111) is a millimeter scale; the length of the puncture needle (11) is 5 cm, 10 cm or 15 cm; the diameter of the guide wire (12) is 0.035 inches; the length of the guide wire (12) is 40-50 cm; the materials of the puncture needle (11) and the guide wire (12) are both 304 stainless steel.

7. The puncture kit for chest drainage according to claim 5, wherein the puncture kit further comprises a booster (13); the booster (13) is a hollow tubular structure, provided with a booster front end opening (131) at the front end and a booster side opening (132) at the side surface 2-5 cm from the front end of the booster (13); wherein the booster front end opening (131) can be sleeved with the booster interface (112) on the puncture needle (11) to push the guide wire (12) into the puncture needle (11), and the booster side opening (132) is used to push the guide wire (12) forward.

8. The puncture kit for chest drainage according to claim 1, wherein The side of the drainage tube (15) is provided with a drainage tube scale mark (151) for observing the insertion depth.

9. The thoracic drainage puncture kit according to claim 1, characterized in that, The tube length of the drainage tube (15) is 30-50 cm. The materials of the dilating tube (14) and the drainage tube (15) are medical silica gel, and the diameters are both 10 Fr.

10. The thoracic drainage puncture kit according to claim 1, characterized in that, The puncture further comprises a tray (1) for placing the puncture needle (11), the guide wire (12), the dilating tube (14) and the drainage tube (15), and a sterile wrapping cloth (2) wrapped outside the tray (1).

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