Drug delivery device passing through thoracic duct

Abstract

The utility model relates to the technical field of medical care devices, in particular to a transthoracic duct dosing device, which comprises a puncture mechanism, an outer needle tube, an outer needle tube and a puncture sleeve communicated with the outer needle tube. The dosing mechanism is arranged in an inner cavity of the outer steel needle tube and an inner cavity of the puncture suite and can also be taken out of the outer steel needle tube and the inner cavity of the puncture suite, the dosing mechanism comprises a liquid medicine injection tube and an air inlet tube which are arranged in the outer steel needle tube and the puncture suite, the air inlet tube is fixedly connected to the outer wall of the liquid medicine injection tube, the end of the air inlet tube is communicated with an air bag, and the air bag is communicated with the outer steel needle tube and the puncture suite. The air bag is wound on the outer side, close to the end, of the liquid medicine injection tube, and a liquid outlet hole is formed in the outer wall, close to the end, of the liquid medicine injection tube. According to the administration device of the thoracic duct, when the outer steel needle tube is inserted into the specific position of the thoracic cavity of a patient, administration can be conducted through the administration tube, and after administration, the administration opening is blocked through the air bag, so that medicine leakage is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical nursing device technical field especially, it relates to a kind of dosing device of thoracic duct. BACKGROUND

[0002] Dosing device is a tool for delivering drugs to specific parts of the human body.

[0003] Its functions include:

[0004] 1. Accurate control of drug dosage: ensure that the appropriate amount of drug is given to the patient, avoid the risk of inaccurate dosage treatment;

[0005] 2. Convenient dosing: make the administration of drugs more convenient, especially for patients who need long-term medication or are inconvenient to move;

[0006] 3. Improve drug efficacy: according to different drugs and treatment needs, choose the appropriate dosing device to improve drug absorption and efficacy.

[0007] At present, after injecting drugs through puncture thoracic duct, patients generally need to adopt head low foot high position, keep the drug stay in lung, to ensure that the drug effect plays the role of sticking and plugging leak. But head low foot high will affect postoperative breathing of patient, is not conducive to lung rehabilitation. At the same time, liquid will flow out of drainage tube after changing body position, reduce the effect of drug.

[0008] Therefore, we design a dosing device of thoracic duct, which can be dosed through dosing tube when the outer steel needle tube is inserted into the specific part of the patient's chest cavity, and the dosing port is blocked by the air bag after dosing to prevent drug leakage. UTILITY MODEL CONTENT

[0009] The utility model solves the technical problems that the prior art has defects, and provides a dosing device of thoracic duct, which can be dosed through a dosing tube when the outer steel needle tube is inserted into the specific part of the patient's chest cavity, and the dosing port is blocked by the air bag after dosing to prevent drug leakage.

[0010] To solve the above technical problems, the utility model adopts the technical scheme that a dosing device of thoracic duct comprises:

[0011] Puncture mechanism, the puncture mechanism comprises an outer steel needle tube and a puncture sleeve set communicated with the outer steel needle tube;

[0012] The administration mechanism is arranged in the inner cavity of the outer steel needle tube and the puncture set and can be taken out from the inner cavity of the outer steel needle tube and the puncture set, the administration mechanism comprises a liquid injection tube arranged in the outer steel needle tube and the puncture set, and an air inlet pipe fixedly connected to the outer wall of the liquid injection tube, the end of the air inlet pipe is communicated with an air bag, the air bag is wound on the outer side of the liquid injection tube close to the end, the outer wall of the liquid injection tube close to the end is provided with a liquid outlet hole for conveying liquid medicine to the administration position of the patient, and the air bag blocks the liquid outlet hole after the air inlet pipe inflates the air bag, so that the backflow and leakage of the liquid medicine are prevented.

[0013] Further, the outer wall of the puncture set is fixedly provided with a side pressing plate.

[0014] Further, the liquid injection tube is open at one end and closed at the other end, and the liquid outlet hole is arranged on the outer wall of the liquid injection tube close to the closed end.

[0015] Further, the air inlet pipe is provided with a blocking mechanism at the end away from the air bag.

[0016] Further, the air bag is further communicated with an air outlet pipe, and the side away from the air bag of the air outlet pipe is also provided with a blocking mechanism.

[0017] Further, the blocking mechanism comprises a first blocking joint, the first blocking joint is fixedly arranged on the air inlet pipe or the air outlet pipe, and the first blocking joint is provided with a blocking block.

[0018] Further, the open end of the liquid injection tube is provided with a second blocking joint, and the second blocking joint is also provided with a blocking block.

[0019] Further, the side away from the air bag of the air inlet pipe and the air outlet pipe is separated from the air inlet pipe, so that air can be introduced into the air inlet pipe or the air outlet pipe or air can be discharged.

[0020] Further, the outer wall of the air bag is provided with an anti-skid layer for preventing the air bag from sliding and moving in the chest tube.

[0021] Further, the liquid injection tube has a predetermined hardness for stably arranging the liquid injection tube on the patient.

[0022] Compared with the prior art, the beneficial effects of the present application include:

[0023] The liquid injection tube can be used for administration through the liquid outlet hole;

[0024] The air bag can block the liquid outlet hole to prevent the backflow of the medicine into the liquid injection tube;

[0025] The liquid injection tube, the air inlet pipe and the air bag can be stably arranged on the chest of the patient for multiple administration operations;

[0026] The exhaust pipe is provided with a set of preventive measures for preventing the air bag from being unable to deflate. BRIEF DESCRIPTION OF DRAWINGS

[0027] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are for purposes of illustration only and are not intended to limit the scope of the present application. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0028] Figure 1 is a structural schematic view of the puncture mechanism of the present application;

[0029] Figure 2 is a structural schematic view of the drug administration mechanism of the present application;

[0030] Figure 3 is a sectional view of the drug administration mechanism of the present application;

[0031] Figure 4 is an enlarged structural schematic view of A of the present application; Figure 2

[0032] Figure 5 is an enlarged structural schematic view of B of the present application. Figure 3

[0033] Reference numerals in the drawings: 1, outer steel needle tube; 2, puncture set; 3, side pressing plate; 4, liquid injection pipe; 5, air inlet pipe; 6, air bag; 7, exhaust pipe; 8, first plugging joint; 9, second plugging joint; 10, plugging block; 11, liquid outlet hole. DETAILED DESCRIPTION

[0034] It is easy to understand that according to the technical scheme of the present application, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the present application, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the present application.

[0035] Embodiment one:

[0036] Key reference Figures 1-5 The device mainly includes an outer steel needle tube 1, a puncture set 2, a side pressing plate 3, a liquid injection pipe 4, an air inlet pipe 5, and an air bag 6.

[0037] The puncture set 2 is fixedly connected to the rear side of the outer steel needle tube 1, and the outer steel needle tube 1 and the puncture set 2 are communicated. The side pressing plate 3 is fixedly installed on the outer wall of the puncture set 2.

[0038] ​​The drug injection tube 4 , the air inlet tube 5 , and the air bag 6 are placed inside the outer steel needle tube 1 and the puncture kit 2 .

[0039] The air inlet pipe 5 is fixedly connected to the outer wall of the drug injection tube 4. The end of the air inlet pipe 5 is connected to the air bag 6. The air bag 6 is wrapped around the outside of the drug injection tube 4 near the end and fixed on the outer wall of the drug injection tube 4. The outer wall of the drug injection tube 4 near the end is provided with a liquid outlet 11 for delivering the drug to the patient's medication site. After the air inlet pipe 5 inflates the air bag 6, the air bag 6 blocks the liquid outlet 11 to prevent the drug from flowing back and leaking.

[0040] The outer wall of the airbag 6 is provided with an anti-slip layer to prevent the airbag 6 from sliding and shifting in the chest tube.

[0041] The drug injection tube 4 has a preset hardness so as to ensure that the drug injection tube 4 is stably placed on the patient.

[0042] The drug injection tube 4 is open at one end and closed at the other end, and the liquid outlet 11 is provided on the outer wall of the drug injection tube 4 near the closed end.

[0043] A first blocking joint 8 is provided at one end of the air inlet pipe 5 away from the airbag 6 , and a blocking block 10 is provided on the first blocking joint 8 for blocking the first blocking joint 8 .

[0044] The open end of the drug injection tube 4 is provided with a second blocking joint 9 , and the second blocking joint 9 is also provided with a blocking block 10 that can block the second blocking joint 9 .

[0045] Embodiment 2: Based on embodiment 1, a technical means is added to prevent the air inlet pipe 5 and the air bag 6 from being unable to exhaust and thus causing the injection liquid pipe 4 to be unable to enter the field to administer the drug.

[0046] Key References Figure 2 and Figure 4 The airbag 6 is also connected to an exhaust pipe 7, which is fixedly mounted on the outer wall of the injection tube 4. A first blocking joint 8 is also provided on the side of the exhaust pipe 7 away from the airbag 6, and a blocking block 10 is installed on the first blocking joint 8 to block it.

[0047] The side of the air intake pipe 5 and the exhaust pipe 7 away from the air bag 6 is separated from the air intake pipe 5 to facilitate ventilation or deflation of air into the air intake pipe 5 or the exhaust pipe 7.

[0048] Other features of the second embodiment are the same as those of the first embodiment.

[0049] In the embodiment, when the chest of the patient needs to be administered, the outer steel needle tube 1 is first punctured into the chest of the patient, then the injection liquid tube 4, the air inlet tube 5 and the air outlet tube 7 are inserted into the outer steel needle tube 1 and the puncture set 2, at this time, the liquid outlet hole 11 in the side wall of the end of the injection liquid tube 4 reaches the part of the chest of the patient where the drug needs to be administered, at this time, the injection liquid tube 4 is injected with the drug. After the drug is injected, the air inlet tube 5 is inflated, so that the air bag 6 is inflated to block the liquid outlet hole 11, so as to prevent the drug from flowing back to the injection liquid tube 4 and leaking.

[0050] The outer steel needle tube 1 and the puncture set 2 can also be pulled out, and the injection liquid tube 4, the air inlet tube 5, the air bag 6 and the air outlet tube 7 are retained, so that the next time the drug is administered, it is more convenient.

[0051] The technical range of the utility model is not limited to the content in the above description, and those skilled in the art can deform and modify the above embodiment without departing from the technical thought of the utility model, and these deformations and modifications should belong to the protection range of the utility model.

Claims

1. A trans-catheter drug delivery device, characterized in that, The utility model relates to a kind of chest tube and its manufacturing method, including: Puncture mechanism, the puncture mechanism includes outer steel needle tube (1) and the puncture kit (2) communicated with outer steel needle tube (1); Administration mechanism is placed in the inner cavity of outer steel needle tube (1) and puncture kit (2), can also be removed from the inner cavity of outer steel needle tube (1) and puncture kit (2), the administration mechanism includes injection liquid tube (4) placed in outer steel needle tube (1) and puncture kit (2), air inlet pipe (5), the air inlet pipe (5) is fixedly connected on the outer wall of injection liquid tube (4), the end of the air inlet pipe (5) is communicated with air bag (6), the air bag (6) is wound on the outside of injection liquid tube (4) close to end portion, the outer wall of injection liquid tube (4) close to end portion is provided with liquid outlet hole (11), for conveying liquid to the administration of patient, after the air inlet pipe (5) inflates air bag (6), air bag (6) blocks liquid outlet hole (11), for preventing liquid reflux leakage.

2. A trans-catheter drug delivery device according to claim 1, wherein, The outer wall of the puncture kit (2) is fixedly installed with a side pressing plate (3).

3. A trans-catheter drug delivery device according to claim 1, wherein, The injection liquid tube (4) is opened at one end, closed at the other side, and the liquid outlet hole (11) is provided on the outer wall of the injection liquid tube (4) close to the closed end.

4. A trans-catheter drug delivery device according to claim 3, wherein, The air inlet pipe (5) is provided with a blocking mechanism at one end away from the air bag (6).

5. A trans-catheter drug delivery device according to claim 4, wherein, The air bag (6) is also communicated with an exhaust pipe (7), and the exhaust pipe (7) is also provided with a blocking mechanism at one side away from the air bag (6).

6. A trans-catheter drug delivery device according to claim 5, wherein, The blocking mechanism includes a first blocking joint (8), the first blocking joint (8) is fixedly installed on the air inlet pipe (5) or the exhaust pipe (7), and the first blocking joint (8) is provided with a blocking block (10).

7. A trans-catheter drug delivery device according to claim 6, wherein, The open end of the injection liquid tube (4) is provided with a second blocking joint (9), and the second blocking joint (9) is also provided with a blocking block (10).

8. A trans-catheter drug delivery device according to claim 7, wherein, The side of the air inlet pipe (5) and the exhaust pipe (7) away from the air bag (6) is separated from the air inlet pipe (5), for facilitating air inlet or air exhaust into the air inlet pipe (5) or the exhaust pipe (7).

9. The trans-catheter drug delivery device of claim 1, wherein, The outer wall of the air bag (6) is provided with an anti-skid layer, for preventing the air bag (6) from sliding and shifting in the chest tube.

10. The trans-catheter drug delivery device of claim 1, wherein, The injection liquid tube (4) has a predetermined hardness, for stably placing the injection liquid tube (4) on the patient.

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