Thoracocentesis assembly

Abstract

The utility model relates to the technical field of medical treatment, and discloses a thoracocentesis assembly which comprises a puncture needle and a drainage device, the puncture needle comprises a needle core and a cannula, and a cannula folding clamp is arranged at the tail end of the cannula; the drainage device comprises a drainage tube and a drainage bag, the drainage bag is provided with a ventilation tube, a detachable control circuit is arranged at the tail end of the ventilation tube, and the control circuit comprises an infrared transmitter, an infrared receiver and an electromagnetic valve. According to the thoracocentesis assembly, opening and closing of the ventilation pipe in the drainage bag can be flexibly controlled, and the gas-liquid dual-purpose effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, and more particularly to a thoracentesis component. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the present application as recited in the claims. No admission is made that the description herein is prior art as disclosed by virtue of its inclusion in this section.

[0003] At present, medical emergency rescue for pneumothorax, especially tension pneumothorax with greater danger, mostly uses clinical puncture needles to urgently relieve symptoms, and the gas-liquid separation device is retained, which is not convenient. In addition, the switch of gas-liquid discharge is mostly determined manually, which is not flexible enough.

[0004] In addition, emergency rescue of patients requires a large amount of miscellaneous materials to be prepared, which is time-consuming and labor-intensive. The clamps used when transporting patients require additional vascular clamps, which is more troublesome.

[0005] Therefore, the present invention designs a thoracentesis assembly to solve the above problems. Summary of the Invention

[0006] The utility model aims to provide a thoracentesis assembly, which can flexibly control the opening and closing of a ventilation tube in a drainage bag.

[0007] The present application discloses a thoracentesis assembly, comprising a puncture needle (1) and a drainage device (2), wherein the puncture needle comprises a needle core (101) and a cannula (102), and a cannula folding clamp (103) is provided at the end of the cannula (102);

[0008] The drainage device (2) comprises a drainage tube (201) and a drainage bag (202); a ventilation tube (203) is provided on the drainage bag (202); a detachable control circuit (204) is provided at the end of the ventilation tube (203); the control circuit (204) comprises an infrared transmitter (205), an infrared receiver (206) and a solenoid valve (207);

[0009] When the infrared receiver (206) detects that the intensity of the infrared light emitted by the infrared transmitter (205) is lower than a threshold value, the vent pipe (203) is closed through the electromagnetic valve (207); otherwise, it remains in an open state.

[0010] In a preferred embodiment, the control circuit includes an infrared transmitting circuit and an infrared receiving circuit;

[0011] In the infrared emitting circuit, one end of the infrared emitter (205) is grounded, and the other end is connected to a switch (208), and the other end of the switch (208) is connected to a power supply (209);

[0012] In the infrared receiving circuit, the infrared receiver (206) is placed within the infrared light irradiation range of the infrared transmitter (205), one end of the infrared receiver (206) is connected to the first input end of the comparator (210), a first voltage is connected to the second input end of the comparator (210), the output end of the comparator (210) is connected to the gate of the first MOS tube (211), a power supply is connected to the source of the first MOS tube (211), and the solenoid valve (207) is connected to the drain of the first MOS tube (211).

[0013] In a preferred embodiment, when the first voltage is turned on, the infrared emitter (205) is powered on and emits infrared light;

[0014] When the liquid level in the drainage bag (202) is at a high level, the infrared receiver (206) detects an infrared light intensity lower than a threshold value, the voltage at one end of the infrared receiver (206) is lower than the first voltage, the comparator (210) outputs a high level, the first MOS tube (211) is turned on, and the solenoid valve (207) is closed;

[0015] When the liquid level in the drainage bag (202) is at a low level, the infrared receiver (206) detects an infrared light intensity higher than a threshold value, the voltage at one end of the infrared receiver (206) is higher than the first voltage, the comparator (210) outputs a low level, the first MOS tube (211) is closed, and the solenoid valve (207) is opened.

[0016] In a preferred embodiment, the length of the puncture needle (1) ranges from 60 to 100 mm, and the end of the needle core (101) includes a baffle (104) for blocking the end of the cannula (102).

[0017] In a preferred embodiment, the sleeve (102) is a transparent PVC hose with an inner diameter of 10 mm and an outer surface marked with equally spaced scales.

[0018] In a preferred example, in the drainage device (2), the drainage tube (201) is a transparent hose, the outflow end of the drainage tube (201) is connected and fixed to the drainage bag (202), and a drainage tube folding clamp (212) is provided on the drainage tube (201).

[0019] In a preferred embodiment, the end of the sleeve (102) has a first thread, and the inflow end of the drainage tube (201) has a second thread, and the first thread and the second thread match and are connected and separated by rotation.

[0020] In a preferred embodiment, the drainage bag (202) includes a drainage inlet, a fixing strap (213), a vent, a drainage outlet and a bag body;

[0021] The drainage inlet, the fixing strap (213) and the vent are located above the drainage bag (202); the drainage inlet is connected to the outflow end of the drainage tube (201); a vent tube (203) is provided at the vent; the drainage outlet is located at the bottom of the drainage bag (202); and the drainage outlet is connected to a drainage tube (214).

[0022] In a preferred embodiment, a stopcock is provided at the drain pipe (214).

[0023] In a preferred embodiment, when the solenoid valve (207) is opened, an alarm is triggered simultaneously, the alarm including lighting up a warning light (216), the output end of the comparator (210) is connected to the gate of the second MOS transistor (215), the power supply (209) is connected to the source of the second MOS transistor (215), and the warning light (216) is connected to the drain of the second MOS transistor (215).

[0024] Compared with the prior art, the main differences and effects of the present invention are:

[0025] The opening and closing of the ventilation tube in the drainage bag can be flexibly controlled;

[0026] Furthermore, the effect of dual use of gas and liquid can be enhanced.

[0027] It should be understood that within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features described in detail below (such as in the embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be listed here one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of a puncture needle and a drainage device according to one embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of an infrared transmitting circuit and an infrared receiving circuit according to one embodiment of the present application.

[0031] Figure 3This is a schematic diagram of the working state of the solenoid valve changing from open to closed in one embodiment of the present application.

[0032] In the accompanying drawings, the following are marked:

[0033] 1-Puncture needle;

[0034] 101-needle core;

[0035] 102- casing;

[0036] 103-Casing folding clamp;

[0037] 104- baffle;

[0038] 2-Drainage device;

[0039] 201-drainage tube;

[0040] 202-drainage bag;

[0041] 203-ventilation pipe;

[0042] 204-control circuit;

[0043] 205-infrared transmitter;

[0044] 206-infrared receiver;

[0045] 207-Solenoid valve;

[0046] 208-switch;

[0047] 209-power supply;

[0048] 210-Comparator;

[0049] 211-first MOS tube;

[0050] 212-Drainage tube folding clip;

[0051] 213-fixed lacing;

[0052] 214-drain pipe;

[0053] 215-second MOS tube;

[0054] 216-Warning light. DETAILED DESCRIPTION

[0055] In the following description, many technical details are provided to help readers better understand this application. However, those skilled in the art will understand that even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented.

[0056] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0057] The present application discloses a thoracentesis assembly, such as Figure 1 As shown, it includes a puncture needle (1) and a drainage device (2), as shown Figure 1 As shown in (a), the puncture needle includes a needle core (101) and a cannula (102), and a cannula folding clamp (103) is provided at the end of the cannula (102);

[0058] like Figure 1 As shown in (b), the drainage device (2) includes a drainage tube (201) and a drainage bag (202), the drainage bag (202) is provided with a ventilation tube (203), the end of the ventilation tube (203) is provided with a detachable control circuit (204), and the control circuit (204) includes an infrared transmitter (205), an infrared receiver (206) and a solenoid valve (207);

[0059] When the infrared receiver (206) detects that the intensity of the infrared light emitted by the infrared transmitter (205) is lower than a threshold value, the vent pipe (203) is closed through the electromagnetic valve (207); otherwise, it remains in an open state.

[0060] When encountering a patient with pneumothorax, the thoracocentesis assembly of the present application is taken out, the puncture point is located, the skin is disinfected, the puncture needle is inserted into the target site, the needle core is pushed out, and the cannula folding clip (103) on the cannula (102) is folded at the same time;

[0061] The drainage tube (201) on the drainage device (2) and the cannula (102) on the puncture needle (1) are connected, and if necessary, the puncture point is fixed with sutures, and then double-fixed with a film, and finally the drainage tube folding clamp (212) is opened to drain gas or liquid;

[0062] When gas or liquid flows into the drainage bag (202), when the liquid level is lower than the threshold, the ventilation tube (203) can be kept in a closed state. When the liquid level is lower than the threshold, the ventilation tube (203) needs to be opened, thereby achieving the dual-use function of gas and liquid. Because of the presence of the infrared transmitter (205) and the infrared receiver (206), flexible and timely judgment can be made, thereby improving the dual-use effect of gas and liquid.

[0063] The control circuit (204) is detachable, which ensures that it can be reused, thus facilitating cost control.

[0064] like Figure 2 As shown, in one embodiment, the control circuit includes an infrared transmitting circuit and an infrared receiving circuit;

[0065] like Figure 2As shown in (a), in the infrared emitting circuit, one end of the infrared emitter (205) is grounded, and the other end is connected to the switch (208), and the other end of the switch (208) is connected to the power supply (209);

[0066] like Figure 2 As shown in (b), in the infrared receiving circuit, the infrared receiver (206) is placed within the infrared light irradiation range of the infrared transmitter (205), one end of the infrared receiver (206) is connected to the first input end of the comparator (210), the first voltage is connected to the second input end of the comparator (210), the output end of the comparator (210) is connected to the gate of the first MOS tube (211), the power supply is connected to the source of the first MOS tube (211), and the solenoid valve (207) is connected to the drain of the first MOS tube (211).

[0067] In one embodiment, when the first voltage is turned on, the infrared emitter (205) is powered on and emits infrared light;

[0068] When the liquid level in the drainage bag (202) is at a high level, the liquid blocks part of the infrared light received by the infrared receiver (206), the infrared receiver (206) detects an infrared light intensity lower than a threshold value, the voltage at one end of the infrared receiver (206) is lower than the first voltage, the comparator (210) outputs a high level, the first MOS tube (211) is turned on, and the solenoid valve (207) is closed;

[0069] The electromagnetic valve (207) changes from open to closed working state as shown in FIG. Figure 3 shown.

[0070] When the liquid level in the drainage bag (202) is at a low level, the liquid does not block the infrared light, and the infrared receiver (206) detects an infrared light intensity higher than the threshold. The voltage at one end of the infrared receiver (206) is higher than the first voltage, the comparator (210) outputs a low level, the first MOS tube (211) is closed, and the solenoid valve (207) is opened. The high and low positions here are relative. In practice, the judgment is mainly based on the infrared light intensity detected by the infrared receiver (206), and there is no need to manually set the specific positions of the high and low positions.

[0071] In one embodiment, the high position of the liquid level in the drainage bag (202) includes the position where the liquid level is higher than or equal to 2 / 3 of the total volume of the drainage bag (202); the low position of the liquid level in the drainage bag (202) includes the position where the liquid level is lower than or equal to 1 / 3 of the total volume of the drainage bag (202).

[0072] In one embodiment, the puncture needle (1) has a length ranging from 60 to 100 mm, and the end of the needle core (101) includes a baffle (104) that blocks the end of the sleeve (102).

[0073] In one embodiment, the sleeve (102) is a transparent PVC hose with an inner diameter of 10 mm and an outer surface marked with equally spaced scales.

[0074] In one embodiment, in the drainage device (2), the drainage tube (201) is a transparent hose, the outflow end of the drainage tube (201) is connected and fixed to the drainage bag (202), and a drainage tube folding clamp (212) is provided on the drainage tube (201). When the patient needs to move, the cannula folding clamp (103) and the drainage tube folding clamp (212) need to be clamped to ensure the airtightness of the tube.

[0075] In one embodiment, the end of the sleeve (102) has a first thread, and the inflow end of the drainage tube (201) has a second thread, and the first thread and the second thread match and are connected and separated by rotation.

[0076] In one embodiment, the drainage bag (202) includes a drainage inlet, a fixing strap (213), a vent, a drainage outlet, and a bag body;

[0077] The drainage inlet, the fixing strap (213) and the vent are located above the drainage bag (202); the drainage inlet is connected to the outflow end of the drainage tube (201); a vent tube (203) is provided at the vent; the drainage outlet is located at the bottom of the drainage bag (202); and the drainage outlet is connected to the drainage tube (214).

[0078] In one embodiment, a stopcock (not shown) is provided at the drain pipe (214).

[0079] In one embodiment, when the solenoid valve (207) is opened, an alarm is triggered at the same time, and the alarm includes lighting up a warning light (216), such as Figure 2 As shown in (b), the output end of the comparator (210) is connected to the gate of the second MOS transistor (215), the power supply (209) is connected to the source of the second MOS transistor (215), and the warning light (216) is connected to the drain of the second MOS transistor (215).

[0080] In one embodiment, when the solenoid valve (207) is opened, an alarm is triggered at the same time. The alarm also includes a buzzer (not shown in the figure). The buzzer is connected in series or in parallel with the warning light (216).

[0081] In one embodiment, the device is also provided with several individually packaged iodine cotton balls, sutures with needles, two fixing patches, and a disposable portable razor blade with a soft cover. All items are disposable and sterile. When the liquid just flows into the drainage bag (202), the disposable razor blade is in a standby state and can be used quickly to incise the skin for drainage when necessary.

[0082] It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0083] All documents mentioned in this application are incorporated herein by reference, just as if each document were incorporated herein by reference individually. It should also be understood that after reading the above teachings of this application, those skilled in the art may make various changes or modifications to this application, and that such equivalents also fall within the scope of the claims appended hereto.

Claims

1. A thoracentesis assembly, characterized in that: It comprises a puncture needle (1) and a drainage device (2), wherein the puncture needle comprises a needle core (101) and a cannula (102), and a cannula folding clamp (103) is provided at the end of the cannula (102); The drainage device (2) comprises a drainage tube (201) and a drainage bag (202); a ventilation tube (203) is provided on the drainage bag (202); a detachable control circuit (204) is provided at the end of the ventilation tube (203); the control circuit (204) comprises an infrared transmitter (205), an infrared receiver (206) and a solenoid valve (207); When the infrared receiver (206) detects that the intensity of the infrared light emitted by the infrared transmitter (205) is lower than a threshold value, the vent pipe (203) is closed through the electromagnetic valve (207); otherwise, it remains in an open state.

2. The thoracentesis assembly according to claim 1, characterized in that: The control circuit includes an infrared transmitting circuit and an infrared receiving circuit; In the infrared emitting circuit, one end of the infrared emitter (205) is grounded, and the other end is connected to a switch (208), and the other end of the switch (208) is connected to a power supply (209); In the infrared receiving circuit, the infrared receiver (206) is placed within the infrared light irradiation range of the infrared transmitter (205), one end of the infrared receiver (206) is connected to the first input end of the comparator (210), a first voltage is connected to the second input end of the comparator (210), the output end of the comparator (210) is connected to the gate of the first MOS tube (211), a power supply is connected to the source of the first MOS tube (211), and the solenoid valve (207) is connected to the drain of the first MOS tube (211).

3. The thoracentesis assembly according to claim 2, characterized in that: When the first voltage is turned on, the infrared emitter (205) is powered on and emits infrared light; When the liquid level in the drainage bag (202) is at a high level, the infrared receiver (206) detects an infrared light intensity lower than a threshold value, the voltage at one end of the infrared receiver (206) is lower than the first voltage, the comparator (210) outputs a high level, the first MOS tube (211) is turned on, and the solenoid valve (207) is closed; When the liquid level in the drainage bag (202) is at a low level, the infrared receiver (206) detects an infrared light intensity higher than a threshold value, the voltage at one end of the infrared receiver (206) is higher than the first voltage, the comparator (210) outputs a low level, the first MOS tube (211) is closed, and the solenoid valve (207) is opened.

4. The thoracentesis assembly according to claim 1, characterized in that: The length of the puncture needle (1) ranges from 60 to 100 mm, and the end of the needle core (101) includes a baffle (104) for blocking the end of the sleeve (102).

5. The thoracentesis assembly according to claim 1, characterized in that: The sleeve (102) is a transparent PVC hose with an inner diameter of 10 mm and an outer surface marked with equally spaced scales.

6. The thoracentesis assembly according to claim 1, characterized in that: In the drainage device (2), the drainage tube (201) is a transparent hose, the outflow end of the drainage tube (201) is connected and fixed to the drainage bag (202), and a drainage tube folding clamp (212) is provided on the drainage tube (201).

7. The thoracentesis assembly according to claim 1, characterized in that: The end of the sleeve (102) has a first thread, and the inflow end of the drainage tube (201) has a second thread. The first thread and the second thread match and are connected and separated by rotation.

8. The thoracentesis assembly according to claim 1, characterized in that: The drainage bag (202) comprises a drainage inlet, a fixing strap (213), a vent, a drainage outlet and a bag body; The drainage inlet, the fixing strap (213) and the vent are located above the drainage bag (202); the drainage inlet is connected to the outflow end of the drainage tube (201); a vent tube (203) is provided at the vent; the drainage outlet is located at the bottom of the drainage bag (202); and the drainage outlet is connected to a drainage tube (214).

9. The thoracentesis assembly according to claim 8, characterized in that: A stopcock is provided at the drain pipe (214).

10. The thoracentesis assembly according to claim 1, characterized in that: When the solenoid valve (207) is opened, an alarm is triggered simultaneously, the alarm including lighting up a warning light (216), the output end of the comparator (210) is connected to the gate of the second MOS transistor (215), the power supply (209) is connected to the source of the second MOS transistor (215), and the warning light (216) is connected to the drain of the second MOS transistor (215).

Images