CN209204216U - Negative Pressure Wound Therapy Apparatus - Google Patents

Abstract

The utility model relates to a negative pressure wound therapeutic instrument which comprises a shell, a negative pressure device and a pressure sensor. The housing has a divider plate configured to divide the housing into a first chamber and a second chamber, the divider plate having a first aperture and a second aperture, the second chamber configured to collect a fluid. The negative pressure device is located in the first cavity and communicated with the second cavity through the first through hole, and the negative pressure device is configured to provide negative pressure for the second cavity. The pressure sensor is located in the first chamber and is communicated with the second chamber through the second through hole, and the pressure sensor is configured to detect the pressure in the second chamber. The first and second perforations are separated from each other. The negative pressure wound therapy device can accurately detect and control the pressure in the second chamber.

Description

Negative Pressure Wound Therapy Apparatus

technical field

The utility model relates to a negative pressure wound treatment instrument.

Background technique

Negative pressure wound therapy is an auxiliary treatment method that has become more and more popular in recent years to promote wound healing. It can play the role of drainage of fluid, and can also fill the local defect of the wound, remove excessive exudate, and provide a relatively moist rather than humid environment for wound closure, reduce tissue edema around the wound, and stimulate the proliferation of granulation tissue.

At present, negative pressure wound therapy can be widely used in clinical treatment of many acute and chronic wounds, including orthopedics, soft tissue, skin grafts, pressure ulcers, venous lower extremity ulcers, diabetic feet, surgical infections, and postoperative wounds. The doctor will evaluate the size, depth, amount of exudate, and infection of the wound based on the patient's past disease history, current physiological condition, current medication status, autonomy, etc., and inform the patient whether it is suitable for use after comprehensive consideration Negative pressure wound therapy for treatment.

Contents of the invention

The purpose of this utility model is to overcome the defects existing in the existing negative pressure wound treatment equipment, and provide an improved negative pressure wound treatment instrument, wherein the pressure sensor can accurately detect the pressure in the second chamber, and then help The control unit can accurately control the pressure in the second chamber, which is more practical.

The purpose of this utility model and its technical solution are to adopt the following technical solutions to achieve.

According to the utility model, a negative pressure wound treatment instrument includes a housing, a negative pressure device and a pressure sensor. The shell has a partition plate configured to divide the shell into a first chamber and a second chamber, the partition plate has a first through hole and a second through hole, and the second chamber is configured to collect fluid. The negative pressure device is located in the first chamber and communicates with the second chamber through the first through hole, and the negative pressure device is configured to provide negative pressure to the second chamber. The pressure sensor is located in the first chamber and communicates with the second chamber through the second through hole, and the pressure sensor is configured to detect the pressure in the second chamber. The first through hole and the second through hole are separated from each other.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures. The aforementioned negative pressure wound treatment apparatus further includes a first pipeline and a second pipeline. The first pipeline is connected between the negative pressure device and the first through hole. The second pipeline is connected between the pressure sensor and the second through hole. The first line and the second line are separated from each other.

The aforementioned negative pressure wound treatment apparatus further includes a pressure regulating valve and a third pipeline. The pressure regulating valve is located in the first chamber and connected to the first pipeline. The third pipeline connects the pressure regulating valve to the outside of the shell.

The aforementioned negative pressure wound treatment apparatus further includes a control unit. The control unit is located in the first chamber and is electrically connected to the pressure regulating valve and the pressure sensor.

The aforementioned negative pressure wound therapy apparatus further includes a fourth pipeline. The fourth pipeline connects the negative pressure device to the outside of the housing.

The aforementioned negative pressure wound treatment apparatus further includes a control unit. The control unit is located in the first chamber and is electrically connected to the negative pressure device and the pressure sensor.

The casing in the aforementioned negative pressure wound treatment apparatus has an inlet. The inlet communicates with the second chamber and is configured to allow fluid to flow into the second chamber.

The inlet in the aforementioned negative pressure wound therapy instrument is configured to connect with medical equipment.

The negative pressure device in the aforementioned negative pressure wound therapy instrument is a negative pressure pump.

The housing in the aforementioned negative pressure wound therapy apparatus includes a first sub-housing and a second sub-housing. The partition plate is connected to the first sub-housing, and the first sub-housing defines the first chamber. The second sub-housing is detachably connected to the first sub-housing, and the second sub-housing defines a second chamber.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. By virtue of the above technical solutions, the utility model negative pressure wound treatment instrument can achieve considerable technical progress and practicality, and has wide industrial application value, at least has the following advantages:

1. Since the negative pressure device and the pressure sensor are respectively connected to the second chamber of the casing, it can be ensured that the pressure sensor detects the pressure in the second chamber instead of connecting the negative pressure device and the second chamber The pressure in the first pipeline between the chambers, not to mention the pressure generated inside when the negative pressure device is in operation. That is to say, the pressure sensor can accurately detect the pressure in the second chamber.

2. Since the pressure sensor can accurately detect the pressure in the second chamber, it also helps the control unit to accurately control the pressure in the second chamber.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and the detailed description is as follows.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a negative pressure wound therapy device according to the present invention.

【Symbol Description】

100: Negative pressure wound therapy device 110: Housing

111: Divider 112: Entrance

113: first subshell 114: second subshell

120: negative pressure device 130: pressure sensor

140: first pipeline 150: second pipeline

155: Printed circuit board 160: Regulator valve

170: Third pipeline 180: Control unit

190: Fourth pipeline 200: Medical equipment

C1: First chamber C2: Second chamber

F: Fluid H1: First perforation

H2: second perforation

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the predetermined utility model purpose, the specific implementation and structure of the negative pressure wound therapy instrument proposed according to the utility model will be described below in conjunction with the accompanying drawings and preferred embodiments. , method, step, feature and effect thereof, detailed description is as follows.

The aforementioned and other technical contents, features and effects of the present utility model will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, one can have a deeper and more specific understanding of the technical means and effects of the utility model to achieve the intended purpose, but the accompanying drawings are only for reference and description, and are not used to explain the utility model. be restricted. For the convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

Please refer to FIG. 1 , which is a schematic cross-sectional view of a negative pressure wound therapy device 100 of the present invention. As shown in FIG. 1 , a negative pressure wound treatment apparatus 100 includes a housing 110 , a negative pressure device 120 and a pressure sensor 130 . The casing 110 has a partition plate 111 configured to divide the casing 110 into a first chamber C1 and a second chamber C2, the partition plate 111 has a first through hole H1 and a second through hole H2, the second Chamber C2 is configured to collect fluid F. The negative pressure device 120 is located in the first chamber C1 and communicates with the second chamber C2 through the first through hole H1. The negative pressure device 120 is configured to provide negative pressure to the second chamber C2. The pressure sensor 130 is located in the first chamber C1 and communicates with the second chamber C2 through the second through hole H2. The pressure sensor 130 is configured to detect the pressure in the second chamber C2. It should be noted that, in this embodiment, the first through hole H1 and the second through hole H2 are separated from each other.

Furthermore, structurally speaking, the negative pressure wound treatment apparatus 100 further includes a first pipeline 140 and a second pipeline 150 . As shown in FIG. 1 , the first pipeline 140 is connected between the negative pressure device 120 and the first through hole H1 , and the second pipeline 150 is connected between the pressure sensor 130 and the second through hole H2 . It should be noted that in this embodiment, the first pipeline 140 and the second pipeline 150 are separated from each other. That is to say, the negative pressure device 120 and the pressure sensor 130 are respectively connected to the second chamber C2 of the casing 110 .

When the negative pressure wound treatment instrument 100 is in operation, the negative pressure device 120 provides negative pressure to the second chamber C2, therefore, the pressure inside the negative pressure device 120 will be lower than the pressure in the second chamber C2, so that the second chamber The chamber C2 produces a suction effect, so that the pressure in the second chamber C2 changes, and the pressure sensor 130 detects the pressure in the second chamber C2 and its change. In practical applications, the negative pressure device 120 is a negative pressure pump, but the present invention is not limited thereto.

It is worth noting that, as mentioned above, since the negative pressure device 120 and the pressure sensor 130 are connected to the second chamber C2 of the casing 110 respectively, it can be ensured that the pressure sensor 130 detects the pressure in the second chamber C2. The pressure is not the pressure in the first pipeline 140 connected between the negative pressure device 120 and the second chamber C2, nor the pressure generated inside the negative pressure device 120 during operation. That is to say, in this embodiment, the pressure sensor 130 can accurately detect the pressure in the second chamber C2.

Furthermore, as shown in FIG. 1 , the negative pressure wound treatment apparatus 100 further includes a control unit 180 . The control unit 180 is located in the first chamber C1 , more specifically, the control unit 180 and the pressure sensor 130 are both disposed on the printed circuit board 155 . In this embodiment, the control unit 180 is electrically connected to the negative pressure device 120 and the pressure sensor 130 . When the negative pressure wound treatment apparatus 100 is in operation, the control unit 180 controls the activation of the negative pressure device 120 . In addition, in practical applications, when the pressure sensor 130 detects that the pressure in the second chamber C2 reaches a default value, the control unit 180 will stop the operation of the negative pressure device 120 according to the pressure detected by the pressure sensor 130, In order to prevent the pressure in the second chamber C2 from further decreasing.

Specifically, as shown in FIG. 1 , the negative pressure wound treatment apparatus 100 further includes a fourth pipeline 190 . The fourth pipeline 190 connects the negative pressure device 120 to the outside of the casing 110 so that the negative pressure device 120 releases the pressure inside the second chamber C2 to the outside.

Furthermore, the negative pressure wound treatment apparatus 100 further includes a pressure regulating valve 160 and a third pipeline 170 . In this embodiment, as shown in FIG. 1 , the pressure regulating valve 160 is located in the first chamber C1 and connected to the first pipeline 140 . The third pipeline 170 connects the pressure regulating valve 160 to the outside of the housing 110 . Moreover, in this embodiment, the control unit 180 is electrically connected to the pressure regulating valve 160 and the pressure sensor 130 .

In practical applications, when the pressure sensor 130 detects that the pressure in the second chamber C2 is lower than the default value, the control unit 180 will start the regulation according to the pressure in the second chamber C2 detected by the pressure sensor 130. Pressure valve 160, so that the atmosphere outside the negative pressure wound treatment device 100 can enter the second chamber C2 through the third pipeline 170 and the pressure regulating valve 160, thereby increasing the pressure in the second chamber C2.

That is to say, in addition to the control unit 180 being able to activate the negative pressure device 120 to reduce the pressure in the second chamber C2, the control unit 180 can also detect the pressure in the second chamber C2 according to the pressure sensor 130, thereby Stop the operation of the negative pressure device 120, or activate the pressure regulating valve 160 to control the pressure in the second chamber C2. Moreover, as mentioned above, since the pressure sensor 130 can accurately detect the pressure in the second chamber C2, it also helps the control unit 180 to accurately control the pressure in the second chamber C2.

In addition, as shown in FIG. 1 , the housing 110 has an inlet 112 . The inlet 112 communicates with the second chamber C2 and is configured to allow the fluid F to flow into the second chamber C2. That is to say, when the control unit 180 activates the negative pressure device 120 , the pressure in the second chamber C2 decreases, so that the fluid F flows into the second chamber C2 through the inlet 112 and is collected in the second chamber C2 .

In practical applications, the inlet 112 is further configured to connect to a medical device 200 , such as a dressing placed on a patient's wound. During the treatment process, the wound is prone to exudation of body fluids, and the negative pressure device 120 provides negative pressure to the second chamber C2, and the negative pressure wound treatment instrument 100 can effectively suck the infected substances and excess from the wound through the medical equipment 200 Tissue exudates to form the above-mentioned fluid F to maintain the wetness of the wound, reduce the margin of the wound, increase the blood flow of nearby microvessels, and stimulate the regeneration of cells and blood vessels through the mechanical stress generated by medical equipment, thereby promoting the proliferation of granulation tissue , these mechanisms work together to accelerate the process of wound healing.

Structurally speaking, in this embodiment, the housing 110 includes a first sub-housing 113 and a second sub-housing 114 . As shown in FIG. 1 , the partition plate 111 is connected to the first sub-housing 113 , and the first sub-housing 113 defines the first chamber C1 . The second sub-housing 114 is detachably connected to the first sub-housing 113, and the second sub-housing 114 defines the second chamber C2. Since the second sub-housing 114 is detachably connected to the first sub-housing 113, the second sub-housing 114 that has collected the fluid F can be easily disassembled from the first sub-housing 113 for subsequent processing by the user. .

To sum up, the negative pressure wound therapy device of the present invention can accurately detect the pressure in the second chamber, and then can accurately control the pressure in the second chamber. However, within the technical field of the utility model, as long as the most basic knowledge is possessed, other operable embodiments of the utility model can be improved. In the utility model, a patent protection request is proposed for the substantive technical solution, and its protection scope should include all variations with the above-mentioned technical characteristics.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, may use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the technical solutions of the utility model do not depart from the scope of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1. A negative pressure wound therapy instrument, characterized in that it comprises: a housing having a partition configured to divide the housing into a first chamber and a second chamber, the partition having a first through hole and a second through hole, the second chamber configured to collect fluid; a negative pressure device located in the first chamber and communicating with the second chamber through the first through hole, the negative pressure device configured to provide negative pressure to the second chamber; and a pressure sensor, located in the first chamber and communicating with the second chamber through the second through hole, the pressure sensor is configured to detect the pressure in the second chamber; Wherein, the first through hole and the second through hole are separated from each other. 2. The negative pressure wound therapy instrument according to claim 1, further comprising: a first pipeline connected between the negative pressure device and the first through hole; and a second pipeline connected between the pressure sensor and the second through hole, Wherein, the first pipeline and the second pipeline are separated from each other. 3. The negative pressure wound therapy instrument according to claim 2, further comprising: a pressure regulating valve located in the first chamber and connected to the first pipeline; and The third pipeline connects the pressure regulating valve to the outside of the housing. 4 . The negative pressure wound treatment device according to claim 3 , further comprising a control unit located in the first chamber and electrically connected to the pressure regulating valve and the pressure sensor. 5. The negative pressure wound healing instrument according to claim 1, further comprising: The fourth pipeline connects the negative pressure device to the outside of the casing. 6 . The negative pressure wound therapy device according to claim 1 , further comprising a control unit located in the first chamber and electrically connected to the negative pressure device and the pressure sensor. 7 . The negative pressure wound therapy device according to claim 1 , wherein the casing has an inlet communicating with the second chamber, and the inlet is configured to allow the fluid to flow into the second chamber. 8 . 8. The negative pressure wound healing apparatus according to claim 7, wherein the inlet is configured to connect with medical equipment. 9. The negative pressure wound treatment apparatus according to claim 1, wherein the negative pressure device is a negative pressure pump. 10. The negative pressure wound treatment apparatus according to claim 1, wherein the housing comprises: a first sub-housing, the partition plate is connected to the first sub-housing, the first sub-housing defines the first chamber; and A second sub-housing is detachably connected to the first sub-housing, and the second sub-housing defines the second chamber.