Water adding structure of thoracic cavity closed drainage bottle

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a thoracic cavity closed drainage bottle water adding structure which comprises a water adding hose, a water adding head is arranged at one end of the water adding hose and can be connected with a water adding opening of a thoracic cavity closed drainage bottle, and a liquid channel and a gas channel are formed in the water adding head. The liquid channel is communicated with the water adding hose and the thoracic cavity closed drainage bottle, and the gas channel is communicated with the thoracic cavity closed drainage bottle and the outside atmosphere; the water adding hose is provided with an expansion part, a flow regulator and a protective sleeve, the protective sleeve is located between the expansion part and the water adding head, one end of the protective sleeve is open, and the other end of the protective sleeve is provided with a round hole for the water adding hose to penetrate through. The water adding head is connected with the water adding opening, negative pressure and positive pressure are continuously generated in the water adding hose through the expansion part, sterile water is sucked and squeezed into the closed thoracic drainage bottle, the situation that the sterile water is poured on a working table top is avoided, the problem that excessive water is added is avoided, and the risk that the closed thoracic drainage bottle is infected is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a water-filling structure for a closed chest drainage bottle. Background Art

[0002] Closed chest drainage is a procedure in which one end of the drainage tube is placed into the patient's chest cavity, and the other end is connected to a closed chest drainage bottle (also known as a "water seal bottle") that is lower than the patient's position, in order to expel gas or collect fluid in the patient's chest cavity, allowing the lung tissue to reopen and restore function. As a treatment method, it is widely used in the drainage of hemothorax, pneumothorax, empyema, and after thoracotomy, and plays a very important role in the treatment of the disease.

[0003] During clinical use, nurses usually add sterile water to the water seal bottle in the following way: place a small funnel at the water filling port of the water seal bottle, hold the sterile water bottle, and pour sterile water into the small funnel until the liquid level in the water seal bottle reaches the appropriate scale line. However, there are the following problems: 1. The inside of the water seal bottle is sterile, but the water seal bottle and sterile water are exposed for a long time during the water adding process, which poses a risk of infection; 2. During the water adding process, the nurse needs to pay attention to whether the liquid level in the water seal bottle reaches the scale line to avoid excessive sterile water addition. However, the nurse also needs to observe whether the bottle mouth of the sterile water bottle is aligned with the small funnel, and also needs to observe the liquid level in the water seal bottle. It is very easy for sterile water to spill on the work surface or excessive sterile water to be added, resulting in low water adding efficiency of the water seal bottle. Summary of the invention

[0004] The present invention is intended to provide a water-adding structure for a closed chest drainage bottle, so as to solve the problem that the existing water-adding method for a water-sealed bottle easily causes sterile water to spill on a table or excessive sterile water is added.

[0005] In order to achieve the above-mentioned purpose, the scheme of the present invention is: a water-adding structure for a closed chest drainage bottle, comprising a water-adding hose, a water-adding head is provided at one end of the water-adding hose, the water-adding head can be connected to the water-adding port of the closed chest drainage bottle, a liquid channel and a gas channel are provided inside the water-adding head, the liquid channel connects the water-adding hose and the closed chest drainage bottle, and the gas channel connects the closed chest drainage bottle and the outside atmosphere; the water-adding hose is provided with an expansion part, a flow regulator and a protective cover, the protective cover is located between the expansion part and the water-adding head, one end of the protective cover is open, and the other end of the protective cover is provided with a circular hole for the water-adding hose to pass through.

[0006] The working principle and beneficial effects of this scheme are as follows: in this scheme, the water adding head on the water adding hose is inserted into the water adding port of the closed chest drainage bottle, and the outer peripheral wall of the water adding head is in contact with the inner peripheral wall of the water adding port to prevent the water adding head from being separated from the water adding port during the water adding process, and the other end of the water adding hose is located in the sterile water bottle; the intermittent squeezing and expansion part causes negative pressure and positive pressure to be continuously generated in the water adding hose, thereby utilizing the negative pressure to absorb sterile water, and utilizing the positive pressure to squeeze the sterile water into the closed chest drainage bottle, thereby realizing the water adding of the closed chest drainage bottle, and the water adding head is connected to the water adding port during the water adding process, thereby preventing sterile water from being spilled on the work surface, and during the water adding process, the nurse can focus on observing the liquid level in the closed chest drainage bottle to avoid the problem of excessive water adding, thereby improving the water adding efficiency of the nurse and reducing the risk of infection in the closed chest drainage bottle.

[0007] Not only that, the water adding head in this scheme has a special structure. During the water adding process, sterile water enters the closed chest drainage bottle through the liquid channel, and the gas in the closed chest drainage bottle is discharged through the gas channel, thereby balancing the internal pressure of the closed chest drainage bottle and avoiding the increase of air pressure in the closed chest drainage bottle and affecting the water adding process.

[0008] In addition, in this solution, a protective cover is used to protect the water adding head so that the water adding head does not contact the work surface when placed on the work surface, thereby preventing the water adding head from being contaminated by the work surface.

[0009] Optionally, two medical one-way valves are installed on the water-filling hose, one of which guides liquid into the expansion part, and the other medical one-way valve guides liquid out of the expansion part.

[0010] In this solution, a medical one-way valve is used to control the one-way flow of sterile water in the water-adding hose to the water-adding head, thereby avoiding the nurse from frequently pinching and closing the water-adding hose, making it easier for the nurse to add water.

[0011] Optionally, the water-filling hose is connected to a syringe, and the syringe is located between two medical one-way valves.

[0012] In this scheme, a syringe is used to continuously generate negative pressure and positive pressure in the water-adding hose, thereby sucking sterile water and squeezing the sterile water into the closed chest drainage bottle, providing nurses with another way to add water to the closed chest drainage bottle.

[0013] Optionally, a limit plate is provided on the water adding head, and the gas outlet port of the gas channel is located on the water adding head between the limit plate and the water adding hose.

[0014] In this solution, a limit plate is used to prevent the water adding head from being fully inserted into the water adding port of the closed chest drainage bottle, thereby ensuring that the interior of the closed chest drainage bottle is connected to the outside atmosphere, so that the internal pressure of the closed chest drainage bottle remains balanced during the water adding process.

[0015] Optionally, when the water adding head is connected to the water adding port of the closed chest drainage bottle, the bottom end of the water adding head is located inside the closed chest drainage bottle.

[0016] In this solution, when the water adding head is connected to the water adding port of the closed chest drainage bottle, since the bottom end of the water adding head is located inside the closed chest drainage bottle, the sterile water flowing out of the liquid channel of the water adding head will not flow through the water adding port, thereby preventing the sterile water from forming a water film in the water adding port and closing the air inlet port of the gas channel.

[0017] Optionally, a placement rack is further included, on which a placement cylinder for placing the sterile water bottle is provided.

[0018] In this solution, the sterile water bottle is placed in the placement cylinder at a height higher than the water filling port of the closed chest drainage bottle. In this way, there is a liquid height difference during the water adding process, which makes it easier to add water.

[0019] Optionally, a blocking plate is provided on the mounting frame, and a slot for the water adding hose to be inserted is formed on the blocking plate, and the slot has a bending portion.

[0020] In this solution, during the water adding process, the water adding hose is inserted into the card slot, and the expansion part is ensured to be located on the blocking plate, so that the water adding hose can be supported by the blocking plate, and the expansion part is suspended in the air, which is convenient for the nurse to intermittently squeeze the expansion part to add water. Moreover, the bending part of the card slot can prevent the water adding hose from spontaneously detaching from the card slot.

[0021] Optionally, the circular hole on the protective sleeve is a threaded hole, and the water-filling hose is provided with two threaded sections that threadably match the threaded hole.

[0022] In this solution, when the threaded hole on the protective sleeve is threadedly matched with the threaded section on the water filling hose, the protective sleeve can be fixed to prevent the protective sleeve from moving spontaneously, thereby ensuring that the protective sleeve plays its protective role on the water filling head.

[0023] Optionally, a padding ring is provided on the outer peripheral wall of the protective sleeve, and the padding ring is located at an end of the protective sleeve away from the circular hole.

[0024] In this solution, when the protective cover is placed on the work surface, the setting of the raising ring causes the end of the protective cover close to the raising ring to tilt up, thereby causing the end of the water filling head away from the water filling hose to tilt up, thereby preventing the water filling head from contacting the work surface and shortening the length design of the protective cover.

[0025] Optionally, an introduction section is provided at the bottom end of the water adding head, the outer diameter of the introduction section gradually decreases in a direction away from the expansion portion, and the air inlet port of the gas channel is located on the inclined wall of the introduction section.

[0026] In this solution, the introduction section can facilitate the rapid insertion of the water filling head into the water filling port of the closed chest drainage bottle, and since the air inlet port of the gas channel is located on the inclined wall of the introduction section, the air inlet port of the gas channel and the liquid outlet port of the liquid channel are not in the same plane. During the process of sterile water flowing from the liquid channel into the closed chest drainage bottle, the sterile water will not affect the patency of the gas channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a water-adding structure for a closed chest drainage bottle in Embodiment 1 of the present invention;

[0028] Figure 2 for Figure 1 A partial cross-sectional view of the middle part;

[0029] Figure 3 This is a schematic diagram of the structure when the water adding head and the protective cover are placed on the work surface in the first embodiment of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a water-adding structure for a closed chest drainage bottle in Embodiment 2 of the present invention;

[0031] Figure 5 This is a schematic structural diagram of a water-adding structure for a closed chest drainage bottle in Embodiment 3 of the present invention;

[0032] Figure 6 This is a schematic structural diagram of a water-adding structure for a closed chest drainage bottle in Embodiment 4 of the present invention;

[0033] Figure 7 It is a top view of the blocking plate in the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The marks in the drawings of the specification include: water adding hose 1, expansion part 110, threaded section 120, water adding head 2, liquid channel 201, gas channel 202, introduction section 210, closed chest drainage bottle 3, water adding port 4, limit plate 5, flow regulator 6, protective cover 7, cushioning ring 8, sterile water bottle 9, medical one-way valve 10, syringe 11, placement bracket 12, blocking plate 13, card slot 131, placement cylinder 14.

[0036] Embodiment 1

[0037] This embodiment is basically Figure 1As shown: A water-filling structure for a closed chest drainage bottle, including a water-filling hose 1, one end of which is provided with a water-filling head 2. In this embodiment, the water-filling head 2 is made of hard plastic and is welded to the end of the water-filling hose 1. The water-filling head 2 can be connected to the water-filling port 4 of a closed chest drainage bottle 3. In this embodiment, the outer peripheral wall of the water-filling head 2 can fit with the inner peripheral wall of the water-filling port 4, thereby realizing the connection between the water-filling head 2 and the water-filling port 4, and the two are detachable. Figure 2 As shown, the inside of the water adding head 2 is provided with a liquid channel 201 and a gas channel 202. The number of gas channels 202 is several, and the several gas channels 202 surround the liquid channel 201. In this embodiment, the number of gas channels 202 is four, and the four gas channels 202 are evenly surrounded by the periphery of the liquid channel 201; the liquid channel 201 connects the water adding hose 1 with the chest closed drainage bottle 3, and the gas channel 202 connects the chest closed drainage bottle 3 with the outside atmosphere. A limiting plate 5 is integrally formed on the water adding head 2, and the gas outlet port of the gas channel 202 is located on the water adding head 2 between the limiting plate 5 and the water adding hose 1, so as to ensure that the gas outlet port of the gas channel 202 is located above the water adding port 4 of the chest closed drainage bottle 3. In addition, when the water adding head 2 is connected to the water adding port 4 of the chest closed drainage bottle 3, the bottom end of the water adding head 2 is located in the chest closed drainage bottle 3, and the bottom end of the water adding head 2 is provided with an introduction section 210, the outer diameter of the introduction section 210 gradually decreases in the direction away from the expansion portion 110, the air inlet port of the gas channel 202 is located on the inclined wall of the introduction section 210, and the liquid outlet port of the liquid channel 201 is located on the bottom wall of the introduction section 210, so that when the liquid flows out through the liquid outlet port of the liquid channel 201, no water film will be formed to seal the air inlet port of the gas channel 202. In this embodiment, the bottom end of the water adding head 2 is cut obliquely along the circumference to form the introduction section 210.

[0038] The water-adding hose 1 is provided with an expansion portion 110, a flow regulator 6 and a protective sleeve 7, wherein the expansion portion 110 is obtained by expanding a certain section of the water-adding hose 1, and the flow regulator 6 is installed on the water-adding hose 1, and its structure is the same as the flow regulator on the existing infusion set. The protective sleeve 7 is located between the expansion portion 110 and the water-adding head 2, and the end of the protective sleeve 7 close to the water-adding head 2 is open, and the end of the protective sleeve 7 away from the water-adding head 2 is provided with a circular hole for the water-adding hose 1 to pass through. In this embodiment, the circular hole is a threaded hole, and the water-adding hose 1 is provided with two threaded sections 120 that are threadedly matched with the threaded hole; in addition, a padding ring 8 is fixedly connected to the outer peripheral wall of the protective sleeve 7, and the padding ring 8 is located at the end of the protective sleeve 7 away from the circular hole.

[0039] When in use, the nurse inserts the water adding head 2 into the water adding port 4 of the chest closed drainage bottle 3 (a double-chamber water-sealed bottle is used as an example in this embodiment, and of course, this embodiment can also be applied to the water adding work of a three-chamber water-sealed bottle). At this time, the outer peripheral wall of the water adding head 2 fits with the inner peripheral wall of the water adding port 4, and the limit plate 5 on the water adding head 2 abuts against the water adding port 4. Then, the nurse inserts the other end of the water adding hose 1 into the sterile water bottle 9 and makes this end of the water adding hose 1 submerge below the liquid surface. Then, the nurse pinches the water-adding hose 1 to the left of the expansion part 110 with one hand, and squeezes the expansion part 110 with the other hand. At this time, the water-adding hose 1 to the right of the expansion part 110 is unblocked, and the air in the expansion part 110 is removed. Then, the expansion part 110 is released, and negative pressure is formed in the water-adding hose 1. The sterile water in the sterile water bottle 9 flows into the expansion part 110 of the water-adding hose 1 under the action of atmospheric pressure; finally, the nurse pinches the water-adding hose 1 to the right of the expansion part 110 with one hand, and the water-adding hose 1 to the left of the expansion part 110 is unblocked. The nurse squeezes the expansion part 110 again with the other hand, and the sterile water in the expansion part 110 flows to the water-adding head 2, and flows into the chest closed drainage bottle 3 through the liquid channel 201 of the water-adding head 2. In this way, the nurse repeatedly squeezes the expansion part 110, thereby extracting and squeezing the sterile water in the sterile water bottle 9 into the chest closed drainage bottle 3, and the chest closed drainage bottle 3 is filled with water. During the water adding process, the nurse can focus on observing the liquid level in the closed chest drainage bottle 3. In this way, when the liquid level reaches the predetermined scale line, the nurse can stop adding water in time to avoid excessive water adding. Moreover, by adding water through the water adding hose 1, sterile water will not spill on the work surface, avoiding the nurse from cleaning the work surface and reducing the nurse's workload.

[0040] Moreover, during the water adding process, sterile water flows into the chest closed drainage bottle 3 from the liquid channel 201 of the water adding head 2, and the air in the chest closed drainage bottle 3 is discharged to the outside atmosphere through the gas channel 202 of the water adding head 2, thereby balancing the air pressure in the chest closed drainage bottle 3 to ensure the smooth addition of sterile water. In addition, during the water adding process, since the water adding head 2 is connected to the water adding port 4, the internal pressure in the chest closed drainage bottle 3 is greater than the atmospheric pressure, the outside atmosphere will not enter the chest closed drainage bottle 3, and the sterile water is not exposed for a long time, thereby greatly reducing the risk of infection of the chest closed drainage bottle 3. In addition, during the water adding process, the nurse can adjust the flow rate of sterile water in the water adding hose 1 through the flow regulator 6, thereby avoiding too fast water adding speed.

[0041] After the water is added, the nurse removes the water adding head 2 from the water adding port 4, rotates the protective cover 7 so that the threaded hole of the protective cover 7 is disengaged from the threaded section 120 on the water adding hose 1 near the expansion portion 110, then moves the protective cover 7 toward the water adding head 2, and rotates the protective cover 7 so that the threaded hole of the protective cover 7 is threadedly connected with the threaded section 120 on the water adding hose 1 near the water adding head 2, and places the protective cover 7 on the workbench. Since the protective cover 7 has a cushioning ring 8, the left end of the protective cover 7 is higher than the right end, as shown in FIG. Figure 3 As shown, the left end of the water adding head 2 is higher than the right end, so as to avoid the water adding head 2 from contacting with the work surface and being contaminated. When it is used next time, the protective cover 7 is rotated again so that the protective cover 7 leaves the water adding head 2.

[0042] Embodiment 2

[0043] The difference between this embodiment and the first embodiment is that: Figure 4 As shown, in this embodiment, two medical one-way valves 10 are provided on the water filling hose 1, and the expansion part 110 is located between the two medical one-way valves 10, wherein one medical one-way valve 10 guides liquid into the expansion part 110, and the other medical one-way valve 10 guides liquid out of the expansion part 110.

[0044] In this embodiment, the two medical one-way valves 10 are provided to allow sterile water to flow unidirectionally in the water filling hose 1 to the water filling head 2, without the need for the nurse to manually pinch and close the water filling hose 1, making the water filling operation simpler and more efficient.

[0045] Embodiment 3

[0046] The difference between this embodiment and the second embodiment is that: Figure 5 As shown, the water adding hose 1 is connected with a syringe 11, and the syringe 11 is located between the two medical one-way valves 10. Specifically, the syringe 11 is connected with the expansion part 110. In this embodiment, the nurse can draw the sterile water by pulling the syringe 11, and then push the syringe 11 to squeeze the sterile water into the chest closed drainage bottle 3, thus providing another way for the nurse to add water into the chest closed drainage bottle 3.

[0047] Embodiment 4

[0048] The difference between this embodiment and the fourth embodiment is that: Figure 6 As shown, in this embodiment, a chest closed drainage bottle water filling structure also includes a placement frame 12, on which a blocking plate 13 and a placement tube 14 for placing a sterile water bottle 9 are provided. The height of the blocking plate 13 is lower than the water filling port 4 of the chest closed drainage bottle 3. Figure 7 As shown, the blocking plate 13 is provided with a slot 131 for the water adding hose 1 to be inserted into, and the slot 131 has a bending portion.

[0049] In this embodiment, the sterile water bottle 9 is placed in the placement tube 14, and the height of the sterile water bottle 9 is higher than the water inlet 4 of the chest closed drainage bottle 3. In this way, there is a liquid height difference during the water adding process, which is more convenient for water adding. Moreover, before the nurse adds water, the water adding hose 1 is inserted into the card slot 131, and the water adding hose 1 passes through the bending part of the card slot 131 (the bending part of the card slot 131 can prevent the water adding hose 1 from spontaneously detaching from the card slot 131), so that the water adding hose 1 is supported by the blocking plate 13, and the expansion part 110 is located on the blocking plate 13, which is convenient for the nurse to intermittently squeeze the expansion part 110 or push and pull the syringe 11 to add water. In addition, since the height of the sterile water bottle 9 is relatively high, if the water adding hose 1 is suspended in the air and is not restricted, during the water adding process, the nurse squeezes the expansion part 110 or pushes and pulls the syringe 11, which will pull the water adding hose 1 and may cause the water adding hose 1 to detach from the sterile water bottle 9. In this embodiment, the water adding hose 1 is restricted after being stuck in the resistance plate 13, which can prevent the water adding hose 1 from detaching from the sterile water bottle 9.

[0050] The above are only embodiments of the present invention. The invention is not limited to the fields involved in this implementation case. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the present invention. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A water-adding structure for a closed chest drainage bottle, characterized in that: It comprises a water-adding hose, one end of which is provided with a water-adding head, the water-adding head can be connected with the water-adding port of a closed chest drainage bottle, a liquid channel and a gas channel are provided inside the water-adding head, the liquid channel connects the water-adding hose with the closed chest drainage bottle, the gas channel connects the closed chest drainage bottle with the outside atmosphere; the water-adding hose is provided with an expansion part, a flow regulator and a protective cover, the protective cover is located between the expansion part and the water-adding head, one end of the protective cover is open, and the other end of the protective cover is provided with a circular hole for the water-adding hose to pass through.

2. The water-adding structure for closed chest drainage bottle according to claim 1, characterized in that: Two medical one-way valves are installed on the water-filling hose, one of which guides liquid into the expansion part, and the other medical one-way valve guides liquid out of the expansion part.

3. The water-adding structure for closed chest drainage bottle according to claim 2, characterized in that: The water-adding hose is connected with a syringe, and the syringe is located between two medical one-way valves.

4. The water-adding structure for closed chest drainage bottle according to claim 1, characterized in that: The water adding head is provided with a limit plate, and the gas outlet port of the gas channel is located on the water adding head between the limit plate and the water adding hose.

5. The water-adding structure for closed chest drainage bottle according to claim 1, characterized in that: When the water adding head is connected to the water adding port of the closed chest cavity drainage bottle, the bottom end of the water adding head is located in the closed chest cavity drainage bottle.

6. The water-adding structure for closed chest drainage bottle according to claim 1, characterized in that: It also includes a placement rack, on which a placement cylinder for placing the sterile water bottle is provided.

7. The water-adding structure for closed chest drainage bottle according to claim 6, characterized in that: The placement frame is provided with a blocking plate, the blocking plate is provided with a slot for the water adding hose to be inserted into, and the slot has a bending portion.

8. The water-adding structure for closed chest drainage bottle according to claim 1, characterized in that: The circular hole on the protective sleeve is a threaded hole, and the water-filling hose is provided with two threaded sections that are threadably matched with the threaded hole.

9. The water-adding structure for closed chest drainage bottle according to claim 1 or 8, characterized in that: A padding ring is provided on the outer peripheral wall of the protective sleeve, and the padding ring is located at an end of the protective sleeve away from the circular hole.

10. The water-adding structure for closed chest drainage bottle according to claim 1 or 5, characterized in that: An introduction section is provided at the bottom end of the water adding head, the outer diameter of which gradually decreases in a direction away from the expansion portion, and the air inlet port of the gas channel is located on the inclined wall of the introduction section.

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