Drainage tube and drainage device for multi-part drainage

Abstract

The invention discloses a drainage tube and drainage device for multi-part drainage, the drainage tube comprises a tube body, the tube body comprises a groove section and a drainage section, and the rear end of the groove section is connected with the front end of the drainage section; wherein the groove section is provided with at least two separated and independent groove channel strips in the circumferential direction, the groove channel strips are provided with through front drainage channels in the axial direction of the tube body, and drainage grooves communicated with the corresponding front drainage channels are formed in the wall face, forming the tube wall of the tube body, of the groove channel strips. Circumferentially adjacent groove channel strips are adapted to be assembled together to form a tubular structure or not assembled together to be spaced apart; and a rear drainage channel which is axially arranged in a penetrating manner and is communicated with the front drainage channel is arranged in the drainage section. According to the drainage device, drainage can be conducted on one drainage part or multiple drainage parts according to needs, and real-time observation of body fluid drained from different parts can be facilitated when drainage is conducted on the multiple drainage parts.

Description

Technical Field

[0001] This invention relates to a drainage tube and drainage device for multiple drainage sites, belonging to the field of medical device technology. Background Technology

[0002] Currently, drainage tubes can generally only drain from one drainage site. To drain from multiple sites, multiple drainage tubes need to be installed. In duodenal surgery, three drainage tubes are usually placed for drainage, and the amount and color of the drained fluid from different sites can be observed. This requires making three holes in the patient for drainage, which not only increases the financial burden on the patient, but also causes more serious trauma and may even lead to other injuries and illnesses.

[0003] There are also drainage tubes with multiple drainage branches, such as the disposable pelvic and abdominal cavity negative pressure three-way drainage tube disclosed in patent CN2209985Y. This tube requires multiple drainage branches to be set up using a Y-connection method to drain multiple drainage sites. However, this patent can only drain through the end. If the patient moves and the drainage tube shifts, drainage will fail. In addition, it cannot drain separately as needed to separate the drainage fluid, making it impossible to observe the actual clinical condition of different sites and diagnose the patient's recovery and subsequent treatment measures. Moreover, setting up drainage branches using the Y-connection method is not convenient for placing the drainage tube to the drainage site and removing the tube. It requires a larger abdominal wall incision to enter the abdominal wall, which is more harmful to the patient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a drainage tube for multiple drainage sites. It can not only drain one or more drainage sites as needed, but also facilitate real-time observation of the body fluid drained from different sites when draining multiple drainage sites, and it is also convenient to place or remove it from the drainage site.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a drainage tube for multi-site drainage, comprising a tube body, wherein the tube body includes a grooved section and a drainage section, and the rear end of the grooved section is connected to the front end of the drainage section; wherein,

[0006] The groove section is provided with at least two separate and independent groove channel strips along the circumferential direction. The groove channel strip is provided with a through front drainage channel along the axial direction of the pipe body. The groove channel strip has a drainage groove connected to the corresponding front drainage channel on the wall surface that forms the pipe body wall. The circumferentially adjacent groove channel strips are suitable to be assembled together to form a tubular structure or not assembled together to be separated.

[0007] The drainage section is provided with a rear drainage channel that is axially connected and communicates with the front drainage channel.

[0008] Furthermore, in order to assemble the grooved channel strips together to form the entire tubular structure, adjacent grooved channel strips are assembled together by assembly surfaces that are suitable for abutting against each other and have an assembly structure between them.

[0009] Furthermore, the assembly structure includes:

[0010] A hole provided on one of the mounting surfaces;

[0011] A post that is set on another mounting surface and is inserted into the hole.

[0012] In the two mating surfaces that cooperate with each other, one of the mating surfaces has staggered holes and posts along the axial direction of the tube body, and the other mating surface has corresponding staggered posts and holes along the axial direction of the tube body.

[0013] Furthermore, in order to ensure more thorough drainage and effectively prevent local blockages that prevent drainage, when the groove channel strips are not assembled together to separate them, the holes therein serve as drainage holes that communicate with the corresponding front drainage channels.

[0014] Furthermore, when there are two groove channel strips, the cross-section of the groove channel strip is a semi-circular structure; when there are three or more groove channel strips, the cross-section of the groove channel strip is a fan-shaped structure.

[0015] Furthermore, in order to prevent the drainage tube from adhering to the body tissues and to greatly reduce the resistance during tube removal, making clinical operation convenient, reducing patient pain and friction damage to human tissues, and avoiding secondary injury to the patient by pulling out new granulation tissue during tube removal, the grooved section is provided with a super-slippery hydrophilic coating on at least part of the wall surface forming the tube body and / or the front end of the drainage section.

[0016] The present invention also provides a drainage device, comprising:

[0017] Drainage tubes for drainage in multiple locations;

[0018] At least one negative pressure drainage component;

[0019] The connector has its front end connected to the rear end of the drainage section, and its rear end connected to the negative pressure drainage component.

[0020] Furthermore, the negative pressure drainage component is provided in one unit, and the connector is provided with a front connector that communicates with the corresponding rear drainage channel and a rear connector that communicates with the negative pressure drainage component. The front connector is connected to the rear connector.

[0021] Alternatively, the negative pressure drainage component may have at least two components, and the connector may have a front connector that communicates with the corresponding rear drainage channel and a rear connector that communicates with the corresponding negative pressure drainage component, with the front connector and the corresponding rear connector being connected.

[0022] Furthermore, the negative pressure drainage assembly includes a negative pressure ball and a drainage bag. The negative pressure ball is connected to the rear connector of the connector through a pipe, and the drainage bag is connected to the negative pressure ball through another pipe.

[0023] Alternatively: the negative pressure drainage assembly includes a drainage bag, which is connected to the rear connector of the connector via a pipe, and the drainage bag is equipped with a negative pressure expansion device.

[0024] After adopting the above technical solution, the present invention has the following beneficial effects:

[0025] 1. This invention can assemble grooved channel strips together to form a tubular structure, and connect a negative pressure drainage component with a corresponding connector to drain a drainage site. Alternatively, the grooved channel strips can be separated, with each grooved channel strip forming an individual channel, and multiple negative pressure drainage components can be connected with corresponding connectors. Each negative pressure drainage component corresponds to one grooved channel strip, allowing drainage to be performed on multiple drainage sites so that the amount and color of the drained liquid at different sites can be observed.

[0026] 2. The present invention is also equipped with two different types of connectors. One type of connector is connected to one negative pressure drainage component, and the operator can use this connector to drain one drainage site. The other type of connector can be connected to multiple negative pressure drainage components, and the operator can use this connector to drain multiple drainage sites, thus making it convenient for the operator to select and use according to the number of drainage sites.

[0027] 3. In order to prevent the drainage tube from adhering to the body tissue and greatly reduce the resistance during tube removal, making clinical operation convenient, reducing patient pain and friction damage to human tissue, and avoiding secondary injury to the patient by pulling out new granulation tissue during tube removal, the groove section is provided with a super-slippery hydrophilic coating on at least part of the wall surface forming the tube body and / or the front end of the drainage section.

[0028] 4. When multiple independent groove channels are separated, the corresponding holes can be used as collection holes for exudate, i.e., drainage holes, which can make drainage more complete and effectively prevent the phenomenon of local blockage and inability to drain. Attached Figure Description

[0029] Figure 1 This is a perspective view of one usage state in Embodiment 1;

[0030] Figure 2 This is a perspective view of another usage state in Embodiment 1;

[0031] Figure 3(a) is a perspective view of the drainage tube of the present invention;

[0032] Figure 3(b) is a perspective view of the grooved channel strip of the present invention;

[0033] Figure 4 This is a cross-sectional view of the grooved channel strip of the present invention;

[0034] Figure 5 This is a cross-sectional view of the drainage section of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of a connector according to the present invention;

[0036] Figure 7 This is a cross-sectional view of a connector structure according to the present invention;

[0037] Figure 8 This is a schematic diagram of the connector structure of another embodiment of the present invention;

[0038] Figure 9 This is a cross-sectional view of a connector with another structure according to the present invention;

[0039] Figure 10 This is a perspective view of the negative pressure drainage component in Embodiment 1;

[0040] Figure 11 This is a schematic diagram of the negative pressure drainage component in Example 2;

[0041] Figure 12 This is a schematic diagram of the structure connecting multiple negative pressure drainage components in Example 2;

[0042] Among them, 1 is the trench section; 11 is the trench channel strip; 11a is the front drainage channel; and 11b is the drainage trench.

[0043] 2. Drainage section; 21. Rear drainage channel;

[0044] 31. Hole; 32. Column;

[0045] 4. Negative pressure drainage assembly; 41. Negative pressure ball; 42. Drainage bag; 43. First pipeline; 44. Second pipeline; 45. Pipe clamp; 46. Drain valve;

[0046] 5. Connector; 51. Front connector; 52. Rear connector; 53. Manifold; 54. Axial channel; 55. Radial channel. Detailed Implementation

[0047] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0048] Example 1: As Figures 1-5 As shown, a drainage tube for multi-site drainage includes a tube body, which includes a grooved section 1 and a drainage section 2. The rear end of the grooved section 1 is connected to the front end of the drainage section 2.

[0049] The groove section 1 is provided with at least two separate and independent groove channel strips 11 along the circumferential direction. The groove channel strip 11 is provided with a through front drainage channel 11a along the axial direction of the pipe body. The groove channel strip 11 is provided with a drainage groove 11b connected to the corresponding front drainage channel 11a on the wall surface that forms the pipe body wall. The circumferentially adjacent groove channel strips 11 are suitable to be assembled together to form a tubular structure or not assembled together to be separated.

[0050] The drainage section 2 is provided with a rear drainage channel 21 that is axially connected and connected to the front drainage channel 11a.

[0051] In this embodiment, the cross-section of the rear drainage channel 21 can be an elliptical structure, but is not limited to this.

[0052] In this embodiment, the grooved channel strips 11 can be assembled together to form a tubular structure, and a corresponding connector 5 can be used to connect a negative pressure drainage component 4 to drain a drainage site. Alternatively, the grooved channel strips 11 can be separated, with each grooved channel strip forming an individual channel, and multiple negative pressure drainage components 4 can be connected using corresponding connectors 5. Each negative pressure drainage component 4 corresponds to one grooved channel strip 11, allowing drainage to be performed on multiple drainage sites so that the amount and color of the drained liquid at different sites can be observed.

[0053] Specifically, as shown in Figures 3 and 4, in order to assemble the grooved channel strips 11 together to form a complete tubular structure, so as to facilitate the insertion or removal of the drainage part, adjacent grooved channel strips 11 are assembled together by assembly surfaces that are suitable for abutting each other and have an assembly structure between them.

[0054] Specifically, as shown in Figures 3 and 4, the assembly structure can be as follows:

[0055] Hole 31 provided on one of the mounting surfaces;

[0056] A column 32 is set on another mounting surface and is inserted into the hole 31.

[0057] Specifically, in order for adjacent groove channel strips 11 to engage better, on one of the two mating surfaces, holes 31 and posts 32 are provided in an alternating manner along the axial direction of the tube body, and on the other mating surface, posts 32 and holes 31 are provided in an alternating manner along the axial direction of the tube body.

[0058] Specifically, as shown in Figures 3 and 4, in order to make the drainage more sufficient and effectively prevent the phenomenon of local blockage and inability to drain, when the groove channel strips 11 are not assembled together to be separated, the hole 31 serves as a drainage hole connected to the corresponding front drainage channel 11a.

[0059] In this embodiment, when there are two groove channel strips 11, the cross-section of the groove channel strip 11 is a semi-circular structure; when there are three or more groove channel strips 11, the cross-section of the groove channel strip 11 is a fan-shaped structure. In the groove channel strip 11, the mounting surface is a radial wall surface, and the wall surface forming the tube wall is an arc surface. In this embodiment, three groove channel strips 11 are preferred, which can be used in duodenal surgery, and each groove channel strip 11 occupies 120° in the circumferential direction.

[0060] Specifically, in order to prevent the drainage tube from adhering to the body tissues and to greatly reduce the resistance during tube removal, making clinical operation convenient, reducing patient pain and friction damage to human tissues, and avoiding secondary damage to the patient caused by pulling out new granulation tissue during tube removal, the groove section 1 is provided with a super-slippery hydrophilic coating on at least part of the wall surface forming the tube body and the front end wall of the drainage section 2.

[0061] like Figures 1-10 As shown in the illustration, this embodiment also demonstrates a drainage device, comprising:

[0062] Drainage tubes for drainage in multiple locations;

[0063] At least one negative pressure drainage component 4;

[0064] Connector 5, the front end of connector 5 is connected to the rear end of drainage section 2, and the rear end of connector 5 is connected to negative pressure drainage component 4.

[0065] In this embodiment, the appropriate number of connectors 5 and negative pressure drainage components 4 can be selected according to the number of drainage sites.

[0066] Specifically, such as Figures 6-7As shown, in this embodiment, two types of connectors 5 are provided for operator use. One type of connector 5 has the following structure: the connector 5 is provided with a front connector 51 that is connected to the corresponding rear drainage channel 21 and a rear connector 52 that is connected to the negative pressure drainage component 4. The front connectors 51 are all connected to the rear connectors 52. In this structure of connector 5, the front connectors 51 are provided with the same number as the groove channel strips 11, and there is one rear connector 52. All the front connectors 51 are connected to the rear connectors 52, and the rear connectors 52 are connected to one negative pressure drainage component 4. Specifically, in this structure of connector 5, the connector 5 is provided with a confluence channel 53. The front end of the rear connector 52 is inserted into the confluence channel 53. The front connectors 51 are connected to the confluence channel 53, and the rear connectors 52 are also connected to the confluence channel 53.

[0067] Another type of connector 5 has the following structure: (e.g.) Figures 8-9 As shown, the connector 5 is provided with a front connector 51 that is connected to the corresponding rear drainage channel 21 and a rear connector 52 that is connected to the corresponding negative pressure drainage component 4. The front connector 51 and the corresponding rear connector 52 are connected. In the connector 5 of this structure, the front connector 51 and the rear connector 52 correspond one-to-one, and each rear connector 52 is connected to a negative pressure drainage component 4. In the connector 5 of this structure, the rear connector 52 is an L-shaped structure. The connector 5 is provided with an axial channel 54 that corresponds one-to-one with the front connector 51 and a radial channel 55 that corresponds one-to-one with the rear connector 52. The channel in the front connector 51 is connected to the corresponding axial channel 54 in the connector 5. The axial channel 54 is then connected to the corresponding radial channel 55. The radial channel 55 is then connected to the channel in the corresponding rear connector 52.

[0068] This embodiment is equipped with two different types of connectors 5. One type of connector 5 is connected to one negative pressure drainage component 4, and the operator can use this connector 5 to drain one drainage site. The other type of connector 5 can be connected to multiple negative pressure drainage components 4, and the operator can use this connector 5 to drain multiple drainage sites, thus making it convenient for the operator to select and use according to the number of drainage sites.

[0069] Specifically, such as Figure 10 As shown, the negative pressure drainage assembly 4 can specifically have the following structure: it includes a negative pressure ball 41 and a drainage bag 42. The front interface of the negative pressure ball 41 is connected to the corresponding rear connector 52 on the connector 5 through the first pipe 43, and the inlet of the drainage bag 42 is connected to the rear interface of the negative pressure ball 41 through the second pipe 44.

[0070] Pipe clamps 45 can be installed on the rear interface of the first pipeline 43, the negative pressure ball 41, and the second pipeline 44; a drain valve 46 can be installed at the outlet of the drainage bag 42; and the drainage bag 42 is equipped with a scale.

[0071] In this embodiment, when draining a single drainage site, the groove channel strips 11 are assembled together. Tissue exudate enters the front drainage channel 11a from the drainage groove 11b, then enters the rear drainage channel 21, then passes through the front connector 51, then enters the rear connector 52, and finally enters the drainage bag 42 of the negative pressure drainage assembly 4. When draining multiple drainage sites, the groove channel strips 11 are not assembled together to separate them. Each groove channel strip forms an individual channel. Each groove channel strip 11 is placed in a drainage site. Tissue exudate from the drainage site enters the corresponding front drainage channel 11a from the corresponding drainage groove 11b and the corresponding hole 31, then enters the corresponding rear drainage channel 21, then passes through the corresponding front connector 51, then enters the corresponding rear connector 52, and finally enters the drainage bag 42 of the corresponding negative pressure drainage assembly 4.

[0072] Example 2: The structure of this example is basically the same as that of Example 1, except that the structure of the negative pressure drainage component 4 is different, such as... Figure 11 As shown, it specifically includes a drainage bag 42. The front interface of the drainage bag 42 is connected to the rear connector 52 of the connector 5 via a first pipe 43. A drain valve 46 is provided on the rear interface of the drainage bag 42. A pipe clamp 45 is provided on the first pipe 43. A negative pressure expansion device is provided inside the drainage bag 42. The drainage bag 42 is marked with graduations. The negative pressure expansion device is prior art. For details, please refer to the self-expanding device in a self-expanding negative pressure drainage bag 42 disclosed in announcement number CN217548650U. It will not be described in detail in this embodiment.

[0073] Specifically, such as Figure 12 As shown, when there are multiple negative pressure drainage components 4, the negative pressure drainage components 4 can be combined together, for example, the drainage bags 42 of the negative pressure drainage components 4 can be connected as one unit.

[0074] The above specific embodiments further illustrate the technical problems solved by the present invention, the technical solutions, and the beneficial effects. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage tube for multi-site drainage, characterized in that, The system includes a pipe body, which comprises a grooved section and a drainage section, wherein the rear end of the grooved section is connected to the front end of the drainage section; wherein, The groove section is provided with at least two separate and independent groove channel strips along the circumferential direction. The groove channel strip is provided with a through front drainage channel along the axial direction of the pipe body. The groove channel strip has a drainage groove connected to the corresponding front drainage channel on the wall surface that forms the pipe body wall. The circumferentially adjacent groove channel strips are suitable to be assembled together to form a tubular structure or not assembled together to be separated. The drainage section is provided with a rear drainage channel that is axially connected and communicates with the front drainage channel.

2. The drainage tube for multi-site drainage according to claim 1, characterized in that, Adjacent groove channel strips are assembled together by assembly surfaces that are adapted to abut against each other and have assembly structures in between.

3. The drainage tube for multi-site drainage according to claim 2, characterized in that, The assembly structure includes: A hole provided on one of the mounting surfaces; A post that is set on another mounting surface and is inserted into the hole.

4. The drainage tube for multi-site drainage according to claim 3, characterized in that, In the two mating surfaces that cooperate with each other, one of the mating surfaces has staggered holes and posts along the axial direction of the tube body, and the other mating surface has corresponding staggered posts and holes along the axial direction of the tube body.

5. The drainage tube for multi-site drainage according to claim 3, characterized in that, When the grooved channel strips are not assembled together to be separated, the holes serve as drainage holes communicating with the corresponding front drainage channels.

6. The drainage tube for multi-site drainage according to claim 3, characterized in that, When there are two groove channel strips, the cross-section of the groove channel strip is a semi-circular structure; when there are three or more groove channel strips, the cross-section of the groove channel strip is a fan-shaped structure.

7. The drainage tube for multi-site drainage according to claim 1, characterized in that, The grooved section has a super-slippery hydrophilic coating on at least a portion of the wall surface forming the pipe body wall and / or the front end wall of the drainage section.

8. A drainage device, characterized in that, include: A drainage tube for multi-site drainage as described in any one of claims 1 to 7; At least one negative pressure drainage component; The connector has its front end connected to the rear end of the drainage section, and its rear end connected to the negative pressure drainage component.

9. The drainage device according to claim 8, characterized in that, The negative pressure drainage component is provided in one unit. The connector is provided with a front connector that communicates with the corresponding rear drainage channel and a rear connector that communicates with the negative pressure drainage component. The front connector is connected to the rear connector. Alternatively, the negative pressure drainage component may have at least two components, and the connector may have a front connector that communicates with the corresponding rear drainage channel and a rear connector that communicates with the corresponding negative pressure drainage component, with the front connector and the corresponding rear connector being connected.

10. The drainage device according to claim 9, characterized in that, The negative pressure drainage assembly includes a negative pressure ball and a drainage bag. The negative pressure ball is connected to the rear connector of the connector through a pipe, and the drainage bag is connected to the negative pressure ball through another pipe. Alternatively: the negative pressure drainage assembly includes a drainage bag, which is connected to the rear connector of the connector via a pipe, and the drainage bag is equipped with a negative pressure expansion device.

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