Negative pressure drug clinical test dosing chamber

Abstract

The utility model belongs to the technical field of negative-pressure drug administration chambers, and particularly relates to a negative-pressure drug clinical test drug administration chamber which comprises a drug administration chamber body, at least two communicated buffer chambers and negative-pressure drug administration chambers are arranged in the drug administration chamber body, and an adjusting mechanism for performing negative-pressure adjustment on the buffer chambers and the negative-pressure drug administration chambers is arranged on the drug administration chamber body. The adjusting mechanism comprises an air inlet mechanism and an air exhaust mechanism, one end of the air inlet mechanism and one end of the air exhaust mechanism both extend into the buffer chamber and the negative pressure dosing chamber, the air exhaust amount of the air exhaust mechanism is larger than the air inlet amount of the air inlet mechanism, and a first sealing door for sealing the buffer chamber is arranged outside the dosing chamber body. By additionally arranging the air inlet mechanism and the air exhaust mechanism which are different in air inlet rate and air exhaust rate, the buffer chamber and the negative pressure dosing chamber which are different in negative pressure space can be formed in the dosing chamber body, so that a patient can conveniently carry out negative pressure adaptation step by step, and discomfort of the patient is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of negative pressure drug delivery room technology, specifically relating to a negative pressure drug clinical trial delivery room. Background Technology

[0002] Negative pressure drug delivery rooms are needed in clinical drug trials to allow patients to undergo drug clinical trials under negative pressure.

[0003] Existing negative pressure drug administration rooms typically consist of an air inlet duct, a high-efficiency filter, an air outlet box, an entrance / exit door, a fresh air conditioning unit, and the drug administration room itself. However, these rooms cannot be used continuously. Once a patient leaves the room, the negative pressure is released, requiring a re-extraction process when a new patient enters. This is inefficient and time-consuming. Furthermore, existing drug administration rooms lack multi-stage buffering devices, leaving patients directly exposed to the predetermined negative pressure environment without any buffering, causing discomfort and significantly reducing the equipment's practicality. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure drug administration room for clinical trials, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure drug clinical trial administration room, comprising: an administration room body, wherein the administration room body has at least two interconnected buffer chambers and a negative pressure administration room, the administration room body is provided with an adjustment mechanism for adjusting the negative pressure of the buffer chambers and the negative pressure administration room, the adjustment mechanism includes an air inlet mechanism and an air outlet mechanism, one end of the air inlet mechanism and the air outlet mechanism extends into the buffer chambers and the negative pressure administration room, and the exhaust volume of the air outlet mechanism is greater than the air inlet volume of the air inlet mechanism.

[0006] Preferably, the exterior of the drug delivery chamber is provided with a first sealing door to seal the buffer chamber, and a second sealing door is provided between the negative pressure drug delivery chamber and the buffer chamber for sealing.

[0007] Preferably, a transition mechanism for negative pressure transition is provided between the buffer chamber and the negative pressure drug delivery chamber, and the transition mechanism is located on the inside or outside of the second sealing door.

[0008] Preferably, the transition mechanism includes a compartment and a third sealing door. The compartment has doorways on both sides for passage. The second and third sealing doors are sequentially arranged in the two doorways. A transition area for negative pressure transition is provided between the second and third sealing doors. The compartment is provided with an air inlet branch pipe and an air outlet branch pipe connected to the air inlet mechanism and the air outlet mechanism. A third ventilation duct regulating valve is provided on both the air inlet branch pipe and the air outlet branch pipe.

[0009] Preferably, the air intake mechanism includes an air intake pipe and a fresh air system installed on the air intake pipe. The air outlet of the air intake pipe extends into the buffer chamber and the negative pressure drug administration chamber, respectively. Both the buffer chamber and the negative pressure drug administration chamber are equipped with a second ventilation duct regulating valve connected to the air intake pipe. One end of the air intake branch pipe is connected to and installed on the air intake pipe.

[0010] Preferably, the exhaust mechanism includes an exhaust pipe and a blower installed on the exhaust pipe. The exhaust end of the exhaust pipe extends into the buffer chamber and the negative pressure drug administration chamber, respectively. Both the buffer chamber and the negative pressure drug administration chamber are provided with a first ventilation duct regulating valve connected to the air inlet pipe. One end of the exhaust branch pipe is connected to and installed on the air inlet pipe.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] (1) By adding two air intake and exhaust mechanisms with different air intake and exhaust volumes, this utility model can form a buffer room and a negative pressure administration room with different negative pressure spaces in the administration room body, so that patients can gradually adapt to negative pressure and avoid discomfort.

[0013] (2) By adding a first sealing door and a second sealing door, this utility model facilitates the separate sealing of the buffer chamber and the negative pressure drug administration chamber, and facilitates the formation of drug administration chambers with different negative pressure values ​​in the main body of the drug administration chamber.

[0014] (3) By adding a partition and a third sealing door, this utility model can form a buffer area for passage between the buffer chamber and the negative pressure drug administration chamber, so that the negative pressure in the buffer chamber and the negative pressure drug administration chamber remains unchanged when passing through. Attached Figure Description

[0015] Figure 1 This is a side view of the present invention;

[0016] Figure 2 This is a first sectional view of the present invention;

[0017] Figure 3 This is a second sectional view of the present invention;

[0018] In the diagram: 1. Drug administration chamber body; 2. Fresh air system; 3. Air inlet pipe; 4. Air inlet branch pipe; 5. Blower; 6. Exhaust pipe; 7. First ventilation duct regulating valve; 8. Second ventilation duct regulating valve; 9. Buffer chamber; 10. Negative pressure drug administration chamber; 11. Compartment; 12. First sealing door; 13. Second sealing door; 14. Third sealing door; 15. Exhaust branch pipe; 16. Third ventilation duct regulating valve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] refer to Figure 1-3 As shown, the present invention provides a negative pressure drug clinical trial administration room, comprising: an administration room body 1, wherein the administration room body 1 is provided with at least two interconnected buffer chambers 9 and negative pressure administration chambers 10, and the administration room body 1 is provided with an adjustment mechanism for adjusting the negative pressure of the buffer chambers 9 and negative pressure administration chambers. The adjustment mechanism includes an air inlet mechanism and an air outlet mechanism, one end of which extends into the buffer chambers 9 and negative pressure administration chambers 10, and the exhaust volume of the exhaust mechanism is greater than the air inlet volume of the air inlet mechanism.

[0021] Combination Figure 2-3 As shown, the outside of the drug administration chamber body 1 is provided with a first sealing door 12 to seal the buffer chamber 9, and a second sealing door 13 for sealing is provided between the negative pressure drug administration chamber 10 and the buffer chamber 9.

[0022] As described above, using the drug administration chamber body 1, air inlet mechanism, and air outlet mechanism provided by this utility model, the drug administration chamber body 1 seals and isolates the buffer chamber 9 and the negative pressure drug administration chamber 10 through the second sealing door 13. The air inlet mechanism and the air outlet mechanism can respectively provide negative pressure spaces with different negative pressures in the buffer chamber 9 and the negative pressure drug administration chamber 10. The patient enters the buffer chamber 9 through the first sealing door 12, placing the patient in a first-level negative pressure space. After the patient adapts to this negative pressure environment, the patient enters the negative pressure drug administration chamber 10 through the second sealing door 13, placing the patient in a second-level negative pressure environment. The negative pressure difference in the buffer chamber 9 is -10 Pa relative to the outdoor atmospheric pressure, and the negative pressure difference in the negative pressure drug administration chamber 10 is -20 Pa relative to the outdoor atmospheric pressure.

[0023] In this utility model, combined with Figure 2-3 As shown, a transition mechanism for negative pressure transition is also provided between the buffer chamber 9 and the negative pressure drug delivery chamber 10 in this embodiment. The transition mechanism is located inside or outside the second sealing door 13.

[0024] Combination Figure 2As shown, the transition mechanism includes a compartment 11 and a third sealing door 14. Both sides of the compartment 11 are symmetrically provided with door openings for passage. The second sealing door 13 and the third sealing door 14 are sequentially arranged in the two door openings. A transition area for negative pressure transition is provided between the second sealing door 13 and the third sealing door 14. The compartment 11 is provided with an air inlet branch pipe 4 and an air outlet branch pipe 15 connected to the air inlet mechanism and the air outlet mechanism. A third ventilation duct regulating valve 16 is provided on both the air inlet branch pipe 4 and the air outlet branch pipe 15.

[0025] As described above, in the transition mechanism provided by this utility model, the compartment 11 and the third sealing door 14 in the transition mechanism form a negative pressure transition area at the second sealing door 13, which can avoid negative pressure changes caused by entering or exiting the buffer chamber 9 or entering the negative pressure drug administration chamber 10. The negative pressure in the compartment 11 can be adjusted through the air inlet branch pipe 4 and the air outlet branch pipe 15, so that the negative pressure in the compartment 11 can be balanced with the negative pressure in the buffer chamber 9 and the negative pressure drug administration chamber 10 respectively. Negative pressure sensors are provided in the compartment 11, the buffer chamber 9 and the negative pressure drug administration chamber 10, so as to maintain the negative pressure at a predetermined threshold.

[0026] In this utility model, combined with Figure 1-2 As shown, the air intake mechanism of this embodiment includes an air intake pipe 3 and a fresh air system 2 installed on the air intake pipe 3. The air outlet end of the air intake pipe 3 extends into the buffer chamber 9 and the negative pressure drug administration chamber 10, respectively. Both the buffer chamber 9 and the negative pressure drug administration chamber 10 are equipped with a second ventilation duct regulating valve 8 connected to the air intake pipe 3. One end of the air intake branch pipe 4 is connected to and installed on the air intake pipe 3.

[0027] Combination Figure 1-2 As shown, the exhaust mechanism includes an exhaust pipe 6 and a blower 5 installed on the exhaust pipe 6. The exhaust end of the exhaust pipe 6 extends into the buffer chamber 9 and the negative pressure drug administration chamber 10, respectively. Both the buffer chamber 9 and the negative pressure drug administration chamber 10 are equipped with a first ventilation duct regulating valve 7 connected to the air inlet pipe 3. One end of the exhaust branch pipe 15 is connected to and installed on the air inlet pipe 3.

[0028] As described above, when using the air intake and exhaust mechanisms provided by this utility model, the fresh air system 2 in the air intake mechanism is activated, introducing external air into the buffer chamber 9 and the negative pressure drug administration chamber 10 through the air intake pipe 3. At the same time, the blower 5 in the exhaust mechanism is activated, expelling the gas in the buffer chamber 9 and the negative pressure drug administration chamber 10 to the outside through the exhaust pipe 6. At this time, the exhaust volume is greater than the intake volume, thereby forming a negative pressure space in the buffer chamber 9 and the negative pressure drug administration chamber 10. Due to the different opening degrees of the first ventilation duct regulating valve 7 and the second ventilation duct regulating valve 8, negative pressure spaces with different negative pressure values ​​are formed in the buffer chamber 9 and the negative pressure drug administration chamber 10.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure drug administration room for clinical trials, characterized in that, include: The drug administration chamber body (1) has at least two interconnected buffer chambers (9) and negative pressure drug administration chambers (10). The drug administration chamber body (1) is provided with a regulating mechanism for adjusting the negative pressure of the buffer chambers (9) and negative pressure drug administration chambers (10). The regulating mechanism includes an air inlet mechanism and an air outlet mechanism. One end of the air inlet mechanism and the air outlet mechanism extends into the buffer chambers (9) and negative pressure drug administration chambers (10). The exhaust volume of the air outlet mechanism is greater than the air inlet volume of the air inlet mechanism.

2. The negative pressure drug administration room for clinical trials according to claim 1, characterized in that: The outside of the drug administration chamber body (1) is provided with a first sealing door (12) for sealing the buffer chamber (9), and a second sealing door (13) for sealing is provided between the negative pressure drug administration chamber (10) and the buffer chamber (9).

3. The negative pressure drug administration room for clinical trials according to claim 2, characterized in that: A transition mechanism for negative pressure transition is also provided between the buffer chamber (9) and the negative pressure drug delivery chamber (10), and the transition mechanism is located inside or outside the second sealing door (13).

4. The negative pressure drug administration room for clinical trials according to claim 3, characterized in that: The transition mechanism includes a compartment (11) and a third sealing door (14). The compartment (11) has door openings on both sides for passage. The second sealing door (13) and the third sealing door (14) are arranged in the two door openings in sequence. A transition area for negative pressure transition is provided between the second sealing door (13) and the third sealing door (14). The compartment (11) is provided with an air inlet branch pipe (4) and an air outlet branch pipe (15) connected to the air inlet mechanism and the air outlet mechanism. The air inlet branch pipe (4) and the air outlet branch pipe (15) are each provided with a third ventilation duct regulating valve (16).

5. A negative pressure drug administration room for clinical trials according to claim 4, characterized in that: The air intake mechanism includes an air intake pipe (3) and a fresh air system (2) installed on the air intake pipe (3). The air outlet of the air intake pipe (3) extends into the buffer chamber (9) and the negative pressure drug administration chamber (10), respectively. The buffer chamber (9) and the negative pressure drug administration chamber (10) are each equipped with a second ventilation duct regulating valve (8) connected to the air intake pipe (3). One end of the air intake branch pipe (4) is connected to the air intake pipe (3).

6. A negative pressure drug administration room for clinical trials according to claim 4, characterized in that: The exhaust mechanism includes an exhaust pipe (6) and a blower (5) installed on the exhaust pipe (6). The exhaust end of the exhaust pipe (6) extends into the buffer chamber (9) and the negative pressure drug administration chamber (10), respectively. The buffer chamber (9) and the negative pressure drug administration chamber (10) are each equipped with a first ventilation duct regulating valve (7) connected to the air inlet pipe (3). One end of the exhaust branch pipe (15) is connected to the air inlet pipe (3).

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