Negative pressure drainage device for preventing peritoneal drainage liquid from exosmosis

Abstract

The utility model provides a negative pressure drainage device used for preventing peritoneal drainage liquid from exosmosis, and relates to the technical field of medical supplies, the negative pressure drainage device comprises a negative pressure container used for providing a negative pressure environment needed by drainage; one end of the drainage tube is connected with the negative pressure container, and the other end of the drainage tube is an open drainage end; the air bag is arranged around the drainage tube close to the drainage end; the air inflation assembly is used for inflating the air bag; when the inflation assembly is used for inflating the air bag, the expanded air bag can seal and fill the gap between the drainage tube and the peritoneal cavity surgical incision around the drainage tube. The device has the effect of preventing exosmosis of abdominal cavity liquid media from the surgical incision of a patient after detumescence.

Description

Technical Field

[0001] The present application relates to the technical field of medical supplies, and in particular to a negative pressure drainage device for preventing extravasation of peritoneal drainage fluid. Background Art

[0002] The negative pressure drainage device is a tool that achieves the suction effect by creating negative pressure in the drainage tube, squeezing the material outside the end of the drainage tube into the drainage tube. After surgery for pelvic malignant tumors, since the patient's body will continue to produce liquid media, it is necessary to use a negative pressure drainage device to continuously discharge the liquid media in the patient's abdominal cavity.

[0003] In the related art, the negative pressure drainage device includes a negative pressure terminal, a liquid collection bottle and a drainage tube. The liquid collection bottle is provided with two interfaces, one connected to the negative pressure terminal and the other connected to the drainage tube. When the negative pressure terminal is working, air negative pressure is generated in the liquid collection bottle, and the negative pressure is used to draw out the dirty blood, sputum and other guide materials from the patient's body through the drainage tube.

[0004] Regarding the above-mentioned related technologies, after the patient completes the operation, the swelling of the surgical incision in the abdominal cavity gradually subsides, causing the surgical incision to gradually loosen and become larger, making it easy for the liquid medium in the abdominal cavity to extravasate. Utility Model Content

[0005] In order to improve the problem that the surgical incision is prone to extravasation of peritoneal fluid media after the patient's swelling has subsided, the present application provides a negative pressure drainage device for preventing extravasation of peritoneal drainage fluid.

[0006] The present application provides a negative pressure drainage device for preventing extravasation of peritoneal drainage fluid, which adopts the following technical solution:

[0007] A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid, comprising

[0008] Negative pressure container, used to provide the negative pressure environment required for drainage;

[0009] A drainage tube is used for negative pressure drainage, one end of which is connected to a negative pressure container and the other end is an open drainage end;

[0010] An air bag is disposed around the drainage tube near the drainage end; and

[0011] An inflation component, used for inflating the airbag;

[0012] When the inflation component is used to inflate the balloon, the expanded balloon can seal the gap between the drainage tube and the abdominal surgical incision around it.

[0013] Furthermore, the inflation component includes an inflation tube, a connecting block and an inflation piece, the inflation tube is connected to the interior of the airbag, the connecting block is located at one end of the inflation tube away from the airbag, the connecting block is provided with an inflation hole connected to the inflation tube, and the inflatable piece is detachably connected to the connecting block.

[0014] Furthermore, the connection block is provided with a locking component for opening or closing the inflation hole.

[0015] Furthermore, the locking component includes a locking slider and a locking spring. A sliding groove is opened inside the connecting block. The locking slider slides in the sliding groove in a direction close to or away from the inflation hole. The locking spring is located in the sliding groove and is used to push the locking slider to slide close to the inflation hole.

[0016] Furthermore, a wedge-shaped surface is provided at one end of the locking slider away from the inflation tube, and when the wedge-shaped surface is squeezed along the length direction of the inflation hole, the locking slider can be driven to slide away from the inflation hole.

[0017] Furthermore, the locking slider is provided with an operating rod, the length direction of the operating rod is consistent with the sliding direction of the locking slider, one end of the operating rod is connected to the locking slider, and the other end passes through the connecting block.

[0018] Furthermore, the inflation member includes a syringe and an injection needle disposed at an outlet of the syringe, and the diameter of the inflation hole is the same as the diameter of the injection needle.

[0019] Furthermore, the airbag is provided with a plurality of limiting members, which are arranged at intervals along the length direction of the airbag, and the limiting members are provided with lead holes for the surgical wires to pass through.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By setting up an airbag and an inflatable component, when the patient's surgical incision becomes loose and enlarged due to swelling reduction, the inflatable component is used to inflate the inside of the airbag, so that the airbag fills the loose and enlarged surgical incision, thereby achieving the effect of preventing the leakage of liquid media in the patient's abdominal cavity;

[0022] 2. By setting a locking slider, a locking spring and an operating rod, when the airbag needs to be inflated, the injection needle is inserted into the inflation hole, and the injection needle pushes the wedge-shaped surface of the locking slider to make the locking slider slide away from the inflation hole, so that the injection needle is connected to the inflation tube to facilitate inflation in the airbag. After the inflation is completed, the injection needle is pulled out of the inflation hole, and the locking slider moves close to the inflation hole under the action of the locking spring to complete the closing of the inflation hole, and the inflation process is more convenient; when the gas in the airbag needs to be discharged, the locking slider is slid by the operating rod to open the inflation hole to facilitate the extrusion of the gas in the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a partial cross-sectional view of an embodiment of the present application.

[0026] Figure 3 yes Figure 1 Enlarged schematic diagram of part A.

[0027] Reference numerals: 1, negative pressure container; 2, drainage tube; 3, air bag; 31, limiter; 4, inflation tube; 5, connection block; 51, inflation hole; 52, slide groove; 53, locking assembly; 531, locking slider; 532, locking spring; 54, operating rod; 6, inflation member; 61, syringe; 62, injection needle; 7, abdominal skin layer DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present application embodiment discloses a negative pressure drainage device for preventing extravasation of peritoneal drainage fluid. Figure 1The negative pressure drainage device for preventing extravasation of peritoneal drainage fluid comprises a negative pressure container 1, a drainage tube 2, an air bag 3 and an inflation component. The negative pressure container 1 comprises a fluid collection bottle and a negative pressure terminal (not shown in the figure). The negative pressure terminal is connected to the negative pressure container 1 through a hose. When the negative pressure terminal is turned on, the air in the fluid collection bottle can be extracted, thereby generating negative pressure in the fluid collection bottle. The fluid collection bottle is provided with a liquid inlet, one end of the drainage tube 2 is plugged into the liquid inlet, and the other end is extended into the patient's abdominal cavity to absorb liquid. The air bag 3 is fixedly wrapped on the drainage tube 2, and the inflation component can inflate the air bag 3.

[0030] After the patient completes the operation, the end of the drainage tube 2 is inserted into the patient's abdominal cavity through the surgical incision of the patient's abdominal skin layer 7, and the negative pressure terminal is activated to allow the drainage tube 2 to absorb fluid from the patient's abdominal cavity. The airbag 3 is in a deflated state, with one part located in the patient's abdominal cavity and the other part located outside the patient's abdominal cavity. As time goes by, the patient's surgical incision gradually becomes swollen, causing the surgical incision to loosen and become larger. The airbag 3 is inflated through the inflation component to expand the airbag 3. The expanded airbag 3 blocks the loosened and enlarged surgical incision, thereby achieving the effect of preventing the leakage of liquid medium in the patient's abdominal cavity.

[0031] See also Figure 1 , the length of the airbag 3 ranges from 5 to 15 cm, so that the position of the airbag 3 can be adjusted to a certain extent according to actual needs, so as to facilitate the correspondence between the airbag 3 and the surgical incision position. The maximum radius of the airbag 3 is less than or equal to 1 cm, and the airbag 3 is made of low expansion material, thereby reducing the possibility of the patient's surgical incision being enlarged due to excessive expansion of the airbag 3, causing harm to the patient. The distance between one end of the airbag 3 located in the abdominal cavity and one end of the drainage tube 2 located in the abdominal cavity is in the range of 15 to 25 cm, so that the drainage tube 2 has a larger range of movement in the patient's abdominal cavity, which is convenient for adjusting the drainage tube 2 to a better drainage position. In this embodiment, the length of the airbag 3 is 15 cm, the maximum radius of the airbag 3 is 1 cm, and the distance between one end of the airbag 3 located in the abdominal cavity and one end of the drainage tube 2 located in the abdominal cavity is 15 cm.

[0032] See also Figure 1 The inflation assembly includes an inflation tube 4, a connecting block 5 and an inflation piece 6. The inflation tube 4 is located at one end of the airbag 3 away from the patient's abdominal cavity and is connected to the inside of the airbag 3, so that the inflation tube 4 is always located outside the patient's abdominal cavity, which is convenient for inflating the inflation tube 4. A connecting block 5 is fixed to one end of the inflation tube 4 away from the airbag 3. The connecting block 5 is bonded and fixed to the inflation tube 4. An inflation hole 51 connected to the inflation tube 4 is opened on the connecting block 5. The inflation piece 6 is detachably connected to the connecting block 5 and can inflate the inflation hole 51.

[0033] It should be noted that the type of the inflatable member 6 itself is not limited, and it can be any form of air source in the prior art. For example, the present invention provides a specific structure, see Figure 1 The inflatable member 6 includes a syringe 61 and an injection needle 62. Both the syringe 61 and the injection needle 62 are medical tools commonly used in hospitals, which can save resources. To match this, the opening of the inflation hole 51 is covered with a puncture membrane made of a material such as rubber. The diameter of the injection needle 62 is the same as the diameter of the inflation hole 51. When the airbag 3 is inflated, the injection needle 62 is inserted into the inflation hole 51, and the piston of the syringe 61 is pushed to inflate the inflation tube 4, thereby achieving inflation of the airbag 3.

[0034] The connection block 5 is provided to facilitate the inflation of the airbag 3 and maintain good air tightness after inflation, so any similar prior art can be used. For example, refer to Figure 2 The connecting block 5 is a rectangular block or a cylindrical block. In this embodiment, the connecting block 5 is preferably a cylindrical block. The connecting block 5 is coaxially arranged with the inflation tube 4. The inflation hole 51 penetrates the connecting block 5 along the axial direction of the connecting block 5. A locking component is arranged inside the connecting block 5. The locking component can open or close the inflation hole 51 to further improve the sealing performance. When it is necessary to inflate the airbag 3, the inflation hole 51 is opened by the locking component. After the inflation is completed, the inflation hole 51 is closed by the locking component, thereby preventing the air in the airbag 3 from being discharged.

[0035] The locking component includes a locking slider 531 and a locking spring 532. The locking slider 531 is a rectangular block. A slide groove 52 is provided inside the connecting block 5. The slide groove 52 is a rectangular groove of a size adapted to the locking slider 531. The length direction of the slide groove 52 is parallel to the radial direction of the connecting block 5. The locking slider 531 slides in the slide groove 52 along the length direction of the slide groove 52. The locking spring 532 is located in the slide groove 52. The inflation hole 51 is located at one end of the slide groove 52 away from the locking spring 532. One end of the locking spring 532 abuts against the locking slider 531, and the other end abuts against the bottom wall of the slide groove 52 away from the inflation hole 51. The locking spring 532 is always in a compressed state, so that the locking slider 531 always abuts against the bottom wall of the slide groove 52 away from the locking spring 532. The locking slider 531 in this position can completely cover the inflation hole 51.

[0036] The end surface of the locking slider 531 away from the inflation tube 4 is set as a wedge-shaped surface, that is, the thickness of the locking slider 531 gradually increases from the end away from the locking spring 532 to the end close to the locking spring 532, so that when the wedge-shaped surface is squeezed along the axial direction of the inflation hole 51, that is, when the injection needle 62 is inserted into the inflation hole 51, the locking slider 531 can slide away from the inflation hole 51, thereby facilitating the opening of the inflation hole 51.

[0037] When it is necessary to inflate the interior of the airbag 3, the injection needle 62 is inserted into the air hole, and the locking slider 531 slides away from the inflation hole 51 under the squeezing of the injection needle 62, so that the injection needle 62 is connected with the inflation tube 4, thereby facilitating the inflation of the interior of the airbag 3; after the inflation is completed, or when it is necessary to reset the piston of the syringe 61 for inflation again, the injection needle 62 is pulled out from the inflation hole 51, and the locking slider 531 slides close to the inflation hole 51 under the push of the locking spring 532, so as to close the inflation hole 51 to prevent the airbag 3 from deflation; when it is necessary to remove the airbag from the patient's abdominal cavity, the piston of the syringe 61 is pushed to the bottom, the needle is inserted into the inflation hole, and the piston of the syringe 61 is pulled, so that the airbag 3 can be evacuated, so that the airbag 3 gradually collapses, so as to facilitate the removal of the airbag 3 from the patient's abdominal cavity. The locking slider 531 can slide in different directions as the injection needle 62 is inserted into and pulled out of the inflation hole 51 , without the need for additional manual operation, making the inflation process of the airbag 3 more convenient.

[0038] An operating rod 54 is provided at one end of the locking slider 531 close to the locking spring 532. The operating rod 54 is a round rod. One end of the operating rod 54 is located inside the slide slot 52, and the other end passes through the connecting block 5. The length direction of the operating rod 54 is consistent with the sliding direction of the locking slider 531. A handle is provided at one end of the operating rod 54 passing through the connecting block 5 to facilitate the control of the operating rod 54. When the air in the airbag 3 needs to be released quickly, the operating rod 54 is pulled to open the inflation hole 51. By squeezing the airbag 3, the air inside the airbag 3 can be discharged from the inflation hole 51.

[0039] It should be noted that in the actual production and assembly process, the connecting block 5 is divided into two halves along the center plane of the slide groove 52 to facilitate the assembly of the locking slider 531, the locking spring 532 and the operating rod 54 into the interior of the connecting block 5. After the assembly is completed, the two halves of the connecting block 5 can be snapped together and fixed.

[0040] In order to reduce the floating of the airbag 3 and the drainage tube 2 and improve the stability of the airbag 3, refer to Figure 3The airbag 3 is provided with a plurality of stoppers 31, which are integrally formed with the airbag 3. The plurality of stoppers 31 are divided into two groups and are respectively located on both sides of the airbag 3. The plurality of stoppers 31 in the same group are arranged at intervals along the length direction of the airbag 3. The stoppers 31 are provided with threading holes. In this embodiment, in order to reduce the volume of the stoppers 31 and reduce the possibility of the stoppers 31 and the skin at the surgical incision of the patient being scratched, the stoppers 31 are arc-shaped arch pieces, and the gap between the arc-shaped arch pieces and the airbag 3 is the threading hole. The threading hole is arranged in the horizontal direction, that is, the arc-shaped arch pieces are arranged in the vertical direction, so that when the drainage tube 2 is pulled out of the patient's abdominal cavity, the contact surface between the arc-shaped arch pieces and the patient's skin is an arc-shaped surface, which further reduces the scratch between the stoppers 31 and the skin at the surgical incision of the patient, and facilitates the removal of the airbag 3 and the drainage tube 2 from the abdominal cavity. Before performing abdominal drainage, the two ends of the patient's surgical incision are sutured with surgical sutures, and the sutures are led to the threading holes on the limiting piece 31. This can not only effectively prevent the patient's surgical incision from expanding, but also fix the airbag 3 to a certain extent, thereby reducing the possibility of floating of the airbag 3 and the drainage tube 2. Multiple limiting pieces 31 enable the surgical sutures to adapt to the position adjustment of the airbag 3, thereby effectively fixing the airbag 3.

[0041] The implementation principle of a negative pressure drainage device for preventing extravasation of peritoneal drainage fluid in an embodiment of the present application is as follows: when the surgical incision of the patient becomes loose and larger due to swelling reduction, the injection needle 62 is inserted into the operation hole, and the locking component opens the inflation hole 51, so that the syringe 61 inflates the air bag 3. After the inflation is completed, the injection needle 62 is pulled out of the inflation hole 51, and the locking component closes the inflation hole 51, so that the air bag 3 blocks the surgical incision of the patient, thereby reducing the possibility of leakage of liquid medium in the patient's abdominal cavity.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid, characterized in that: include Negative pressure container, used to provide the negative pressure environment required for drainage; A drainage tube is used for negative pressure drainage, one end of which is connected to a negative pressure container and the other end is an open drainage end; An air bag is disposed around the drainage tube near the drainage end; and An inflation component, used for inflating the airbag; When the inflation component is used to inflate the balloon, the expanded balloon can seal the gap between the drainage tube and the abdominal surgical incision around it.

2. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 1, characterized in that: The inflation assembly includes an inflation tube, a connecting block and an inflation piece. The inflation tube is connected to the interior of the airbag. The connecting block is located at one end of the inflation tube away from the airbag. The connecting block is provided with an inflation hole connected to the inflation tube. The inflation piece is detachably connected to the connecting block.

3. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 2, characterized in that: The connecting block is provided with a locking component for opening or closing the inflation hole.

4. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 3, characterized in that: The locking component includes a locking slider and a locking spring. A sliding groove is opened inside the connecting block. The locking slider slides in the sliding groove in a direction close to or away from the inflation hole. The locking spring is located in the sliding groove and is used to push the locking slider to slide close to the inflation hole.

5. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 4, characterized in that: A wedge-shaped surface is provided at one end of the locking slider away from the inflation tube. When the wedge-shaped surface is squeezed along the length direction of the inflation hole, the locking slider can be driven to slide away from the inflation hole.

6. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 5, characterized in that: The locking slider is provided with an operating rod, the length direction of the operating rod is consistent with the sliding direction of the locking slider, one end of the operating rod is connected to the locking slider, and the other end passes through the connecting block.

7. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 6, characterized in that: The inflatable component comprises a syringe and an injection needle arranged at the outlet of the syringe, and the diameter of the inflatable hole is the same as the diameter of the injection needle.

8. A negative pressure drainage device for preventing extravasation of peritoneal drainage fluid according to claim 1, characterized in that: The airbag is provided with a plurality of limiting members, which are arranged at intervals along the length direction of the airbag, and the limiting members are provided with lead holes for the surgical wires to pass through.

Images