An inflation device for a rectal occluder

Abstract

The utility model relates to medical instrument technical field provides a rectal plugging device inflation device, including rigid pipe and inflation pipe, rigid pipe slidingly covers and locate on the inflation pipe, and the distal end of inflation pipe forms the inflation joint for with rectal plugging device inflation port detachable connection, when rectal plugging device is located in the deepest place of rectum, and inflation joint is connected with rectal plugging device inflation port, and the distal end of rigid pipe is axially contacted with rectal plugging device, rigid pipe stretches out anus to the near place, and inflation pipe stretches out rigid pipe to the near place. Can realize the inflation of rectal plugging device in the intestine, and after the inflation is completed, the rectal plugging device and the removal of inflation device are convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an air-filling device for a rectal occluder. Background Technology

[0002] During transanal minimally invasive surgery (TAMIS), the surgeon typically first plugs the deep part of the rectum with sterilized cotton balls or cotton plugs to create a relatively closed and stable working environment. Then, the surgeon slowly inflates the rectum with a suitable amount of gas (usually carbon dioxide or air) using a specific device. The inflated gas effectively expands the rectal wall, providing a clear and wide surgical field, allowing the surgeon to observe and accurately locate the lesion, and also providing sufficient space for surgical instruments. Next, the surgeon, using an endoscope and other surgical instruments, enters the rectum through the anus, a natural cavity, to perform lesion removal, suturing, or other necessary treatment procedures.

[0003] However, using cotton balls or cotton plugs to seal the deep rectum has the following drawbacks: 1. During inflation, the cotton may not seal tightly, allowing more gas to pass through, which is not conducive to maintaining the inflation space in the rectum; 2. After surgery, the cotton may be difficult to remove completely, resulting in residue in the rectum, which may cause inflammatory reactions and discomfort.

[0004] To overcome the drawbacks of using cotton to block the rectum, a rectal occluder exists to replace cotton in blocking the deep rectum, such as... Figure 1 and Figure 2 As shown, the rectal occluder includes a support tube 11 and an annular balloon 12. The annular balloon 12 is fixedly sleeved on the support tube 11, and the annular balloon 12 and the support tube 11 are sealed together. The support tube 11 has a through hole 13 communicating with the balloon, and the proximal end of the support tube 11 has an inflation port 14. The rectal occluder is used as follows: when the annular balloon 12 is in a contracted state, the rectal occluder is placed in the target position in the rectum through the anus. Inflation is performed into the support tube 11 through the inflation port 14. The inflated gas enters the annular balloon 12 through the through hole 13, causing the annular balloon 12 to expand, opening the rectum and simultaneously blocking the deep rectum.

[0005] How to inflate the rectal occluder and how to remove the rectal occluder and inflator after inflation are urgent problems to be solved. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a rectal occluder inflation device, which can realize the inflation of the rectal occluder in the intestine, and facilitates the removal of the rectal occluder and the inflation device after inflation.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] This utility model provides a rectal occluder inflation device, including a rigid tube and an inflation tube. The rigid tube is slidably sleeved on the inflation tube, and the distal end of the inflation tube forms an inflation connector for detachable connection with the inflation port of the rectal occluder. When the rectal occluder is located at the deepest part of the rectum, and the inflation connector is connected to the inflation port of the rectal occluder, and the distal end of the rigid tube is axially abutting against the rectal occluder, the rigid tube extends proximally out of the anus, and the inflation tube extends proximally out of the rigid tube.

[0011] Optionally, the distal end of the inflation tube is formed into a male or female Luer connector for Luer connection with the inflation port of the rectal occluder.

[0012] Optionally, a one-way valve is provided at the proximal end of the inflation tube to control the unidirectional flow of gas through the inflation tube. The one-way valve has a rotary switch. When the rotary switch is rotated to the first position, gas is allowed to flow unidirectionally in the inflation tube. When the rotary switch is rotated to the second position, gas is prevented from flowing in the inflation tube. A rigid tube slides along the inflation tube on the distal side of the one-way valve.

[0013] Optionally, the inflation tube is a flexible tube, and the proximal end of the inflation tube forms an air inlet for communication with an external air source device.

[0014] Optionally, the rectal occluder inflation device further includes a first stop plate and a second stop plate. The first stop plate is fixedly sleeved on the proximal end of the rigid tube, and the second stop plate is fixedly sleeved on the proximal end of the inflation tube. The rigid tube slides along the inflation tube on the distal side of the second stop plate. When the rectal occluder is located at the deepest part of the rectum, and the inflation connector is connected to the inflation port of the rectal occluder, and the distal end of the rigid tube is axially abutting against the rectal occluder, the first stop plate is located outside the anus, and the distance between the first stop plate and the second stop plate is greater than 1.5 cm.

[0015] Optionally, the outer perimeter of the first stop plate is a circle with a diameter of 2-3 cm, the outer perimeter of the second stop plate is a strip, the length of the second stop plate is 4-6 cm, and the width of the second stop plate is 1.5-3 cm.

[0016] Optionally, a first structure is provided on the first stop plate, and a second structure is provided on the second stop plate. The first structure and the second structure cooperate to form a detachable connection for axial positioning of the rigid tube. The first structure and the second structure are loosened to allow the rigid tube to slide axially along the inflation tube.

[0017] Optionally, the first structure includes a T-shaped key, which has a first rod extending axially along the rigid tube and a second rod extending radially along the rigid tube. A first end of the first rod is fixedly connected to the surface of the first stop plate facing the second stop plate, and a second end of the first rod is fixedly connected to the middle of the second rod. The second structure includes an arc-shaped through hole opened on the second stop plate and a strip-shaped through hole that allows the first rod and the second rod to pass through. One end of the arc-shaped through hole communicates with the middle of the strip-shaped through hole. When the second rod passes through the strip-shaped through hole and the first rod passes through the strip-shaped through hole, during the circumferential rotation of the rigid tube along the inflation tube, the first rod rotates around the inflation tube along the arc-shaped through hole, and the arc-shaped through hole prevents the second rod from passing through.

[0018] Optionally, on the surface of the second baffle away from the first baffle, a boss extending along the arc-shaped through hole is provided at each of the two arc-shaped edges of the arc-shaped through hole; when the second rod passes through the strip-shaped through hole and the first rod passes through the strip-shaped through hole, during the circumferential rotation of the rigid tube along the inflation tube, the first rod can rotate along the arc-shaped through hole to the side of the boss away from the strip-shaped through hole.

[0019] Optionally, the rigid tube has a length of 25-35cm, a diameter of 8.5-10.5mm, and a diameter of 5-7mm for the air tube.

[0020] (III) Beneficial Effects

[0021] The beneficial effects of this utility model are:

[0022] The process of using the rectal occluder inflation device provided by this utility model is as follows: The inflation connector is connected externally to the inflation port of the rectal occluder. The rectal occluder is then delivered to the target position in the rectum via the inflation device. Inflation is then performed by the inflation tube into the rectal occluder. After inflation, the operator slides the rigid tube axially externally until its distal end axially abuts against the rectal occluder. The rigid tube remains stationary, and the operator then pulls the inflation tube proximally externally (at this point, because the rigid tube axially abuts against the rectal occluder, the rectal occluder also remains stationary axially), thus separating the inflation connector from the rectal occluder inflation port. Therefore, the inflation device provided by this utility model can both inflate the rectal occluder inside the intestine and remove the rectal occluder from the inflation device after inflation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a rectal occluder based on the prior art, in which the annular balloon is in a contracted state;

[0024] Figure 2 This is a schematic diagram of a rectal occluder based on the prior art, in which the annular balloon is inflated;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of an air-inflating device for a rectal occluder according to a specific embodiment, wherein the first structure and the second structure are not coupled.

[0026] Figure 4 This is a side view of an inflatable device for a rectal occluder according to a specific embodiment, wherein the first and second structures are not fitted together.

[0027] Figure 5 This is a side view of an inflatable device for a rectal occluder according to a specific embodiment, wherein the first structure and the second structure are coupled together;

[0028] Figure 6 This is an enlarged schematic diagram of the proximal end of the rectal occluder inflation device according to a specific embodiment, wherein the second rod portion passes through a strip-shaped through hole, and the first rod portion penetrates through the strip-shaped through hole;

[0029] Figure 7 This is a magnified view of the proximal end of the rectal occluder inflation device according to a specific embodiment, wherein the first rod rotates along the arc-shaped through hole to the side of the boss away from the strip-shaped through hole.

[0030] Explanation of reference numerals in the attached figures

[0031] 11: Support tube; 12: Annular airbag; 13: Through hole; 14: Inflation port;

[0032] 2: Rigid pipe;

[0033] 3: Inflation tube;

[0034] 31: Inflation connector; 32: One-way valve; 33: Rotary switch; 34: Air inlet;

[0035] 4: First stop plate;

[0036] 42: First rod section; 43: Second rod section; 44: Arc-shaped through hole; 45: Strip-shaped through hole; 46: Boss;

[0037] 5: Second stop plate. Detailed Implementation

[0038] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, "axial" refers to the axial direction of the rigid tube or inflation tube, "near" refers to the side closer to the operator, and "far" refers to the side closer to the patient.

[0039] like Figures 3 to 7As shown, this embodiment provides a rectal occluder inflation device, including a rigid tube 2 and an inflation tube 3. The rigid tube 2 is slidably sleeved on the inflation tube 3. The distal end of the inflation tube 3 forms an inflation connector 31 for detachable connection with the rectal occluder inflation port 14. When the rectal occluder is located at the deepest part of the rectum, and the inflation connector 31 is connected to the rectal occluder inflation port 14, and the distal end of the rigid tube 2 is axially abutting against the rectal occluder, the rigid tube 2 extends proximally out of the anus, and the inflation tube 3 extends proximally out of the rigid tube 2.

[0040] It should be noted that the rectal occluder inflation port 14 will automatically open when connected to the inflation connector 31, and will automatically close when disconnected from the inflation connector 31.

[0041] The process of using the rectal occluder inflation device configured above is as follows: Connect the inflation connector 31 externally to the rectal occluder inflation port 14. Use the inflation device to deliver the rectal occluder to the target position in the rectum. Then, inflate the rectal occluder with the inflation tube 3. After inflation, the operator axially slides the rigid tube 2 externally until its distal end axially abuts against the rectal occluder, keeping the rigid tube 2 stationary. Then, externally, pull the inflation tube 3 closer to the rectal occluder (at this time, because the rigid tube 2 axially abuts against the rectal occluder, the rectal occluder also remains stationary), thus separating the inflation connector 31 from the rectal occluder inflation port 14. Therefore, the inflation device provided in this embodiment can both inflate the rectal occluder inside the intestine and remove the rectal occluder from the inflation device after inflation.

[0042] Preferably, the distal end of the inflation tube 3 is detachably connected to the inflation port 14 of the rectal occluder via a plug-in detachable connection. More preferably, the detachable connection between the distal end of the inflation tube 3 and the inflation port 14 of the rectal occluder is a Luer connection. This simplifies the structure and enables a minimal, leak-free connection between the inflation tube 3 and the rectal occluder. Thus, the distal end of the inflation tube 3 forms a male or female Luer connector for Luer connection with the inflation port 14 of the rectal occluder. In this embodiment, the distal end of the inflation tube 3 forms a male Luer connector for Luer connection with the inflation port 14 of the rectal occluder.

[0043] Preferably, a one-way valve 32 for controlling the unidirectional flow of gas through the inflation tube 3 is provided at the proximal end of the inflation tube 3. The one-way valve 32 has a rotary switch 33. When the rotary switch 33 is rotated to a first position, gas is allowed to flow unidirectionally in the inflation tube 3. When the rotary switch 33 is rotated to a second position, gas flow is prevented from flowing in the inflation tube 3. The rigid tube 2 slides along the inflation tube 3 distal to the one-way valve 32. In this way, by controlling the one-way valve 32 with the rotary switch 33, the gas flow in the inflation tube 3 can be controlled as needed, making the rectal occluder inflation device more flexible in use.

[0044] Furthermore, in this embodiment, the inflation tube 3 is a flexible tube, and the proximal end of the inflation tube 3 forms an air inlet 34 for communication with an external air source device.

[0045] Preferably, the rectal occluder inflation device further includes a first stop plate 4 and a second stop plate 5. The first stop plate 4 is fixedly sleeved on the proximal end of the rigid tube 2, and the second stop plate 5 is fixedly sleeved on the proximal end of the inflation tube 3. The rigid tube 2 slides along the inflation tube 3 on the distal side of the second stop plate 5. When the rectal occluder is located at the deepest part of the rectum, and the inflation connector 31 is connected to the inflation port 14 of the rectal occluder, and the distal end of the rigid tube 2 is axially abutting against the rectal occluder, the first stop plate 4 is located outside the anus, and the distance between the first stop plate 4 and the second stop plate 5 is greater than 1.5 cm. Thus, the first stop plate 4 and the second stop plate 5 facilitate the operator in keeping the rigid tube 2 stationary from the outside and in pulling the inflation tube 3 closer to the outside. Specifically, by pressing the first stop plate 4 with the fingers, the operator can keep the rigid tube 2 stationary from the outside, and by pulling the second stop plate with the fingers, the operator can pull the inflation tube 3 closer to the outside. The distance between the first stop plate 4 and the second stop plate 5 is greater than 1.5cm, which allows the operator to place their fingers between the first stop plate 4 and the second stop plate 5 to press the first stop plate 4 and pull the second stop plate 5. The operator only needs one hand to achieve this.

[0046] More preferably, when the rectal occluder is located at the deepest part of the rectum, and the inflation connector 31 is connected to the inflation port 14 of the rectal occluder, and the distal end of the rigid tube 2 is axially abutting against the rectal occluder, the distance between the first stop plate 4 and the second stop plate 5 is 2-3 cm. This provides a space about the width of two fingers between the first stop plate 4 and the second stop plate 5, further facilitating the operator to use one hand to operate the inflation device and remove the rectal occluder from the inflation device.

[0047] More preferably, the outer perimeter of the first stop plate 4 is a circle with a diameter of 2-3 cm, the outer perimeter of the second stop plate 5 is a strip, the length of the second stop plate 5 is 4-6 cm, and the width of the second stop plate 5 is 1.5-3 cm. The first stop plate 4, with the above dimensions and shape, facilitates pressure from the operator's fingers, and the second stop plate, with the above dimensions and shape, facilitates gripping and pulling with the fingers. The strip shape can be elliptical, rectangular, hexagonal, etc.

[0048] Furthermore, in this embodiment, the one-way valve 32 is located near the second stop plate 5.

[0049] Preferably, the first stop plate 4 is provided with a first structure, and the second stop plate 5 is provided with a second structure. The first structure and the second structure cooperate to form a detachable connection for axial positioning of the rigid tube 2. When the first structure and the second structure are loosened, the rigid tube 2 is allowed to slide axially along the inflation tube 3. In this way, when it is not necessary to disassemble the connection between the rectal occluder and the inflation device, the first structure and the second structure can be used to axially position the rigid tube 2, preventing the rigid tube 2 from sliding along the axis and affecting other uses of the inflation device.

[0050] More preferably, the first structure includes a T-shaped key, which has a first rod portion 42 extending axially along the rigid tube 2 and a second rod portion 43 extending radially along the rigid tube 2. The first end of the first rod portion 42 is fixedly connected to the surface of the first stop plate 4 facing the second stop plate 5, and the second end of the first rod portion 42 is fixedly connected to the middle portion of the second rod portion 43. The second structure includes an arc-shaped through hole 44 formed on the second stop plate 5 and a strip-shaped through hole 45 allowing the first rod portion 42 and the second rod portion 43 to pass through. One end of the arc-shaped through hole 44 communicates with the middle portion of the strip-shaped through hole 45. When the second rod portion 43 passes through the strip-shaped through hole 45 and the first rod portion 42 passes through the strip-shaped through hole 45, during the circumferential rotation of the rigid tube 2 along the inflation tube 3, the first rod portion 42 rotates around the inflation tube 3 along the arc-shaped through hole 44, and the arc-shaped through hole 44 prevents the second rod portion 43 from passing through. This design of the first and second structures is simple in structure and easy for operators to use.

[0051] More preferably, on the surface of the second baffle away from the first baffle, a boss 46 extending along the arc-shaped through hole 44 is provided at each of the two arc-shaped edges of the arc-shaped through hole 44. When the second rod 43 passes through the strip-shaped through hole 45 and the first rod 42 passes through the strip-shaped through hole 45, during the circumferential rotation of the rigid tube 2 along the inflation tube 3, the first rod 42 can rotate along the arc-shaped through hole 44 to the side of the boss 46 away from the strip-shaped through hole 45. In this way, the boss 46 can play a certain role in stopping the first rod 42, and thus play a certain role in stopping the rotation of the rigid tube 2 around the axis, thereby improving the axial positioning stability of the rigid tube 2.

[0052] Preferably, the length of the rigid tube 2 is 25~35cm, the diameter of the rigid tube 2 is 8.5~10.5mm, and the diameter of the air tube 3 is 5~7mm.

[0053] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0055] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rectal occlusion device inflation apparatus, characterized in that, It includes a rigid tube (2) and an inflation tube (3), the rigid tube (2) is slidably sleeved on the inflation tube (3), and the distal end of the inflation tube (3) forms an inflation connector (31) for detachable connection with the inflation port (14) of the rectal occluder; When the rectal occluder is located at the deepest part of the rectum, and the air inlet (31) is connected to the air inlet (14) of the rectal occluder, and the distal end of the rigid tube (2) is axially abutted against the rectal occluder, the rigid tube (2) extends into the anus and the air inlet (3) extends into the rigid tube (2).

2. The rectal occlusion device inflation apparatus according to claim 1, characterized in that, The distal end of the inflation tube (3) forms a male or female Luer connector for Luer connection with the rectal occluder inflation port (14).

3. The rectal occlusion device inflation apparatus according to claim 1, characterized in that, The proximal end of the inflation tube (3) is provided with a one-way valve (32) for controlling the one-way flow of gas through the inflation tube (3). The one-way valve (32) has a rotary switch (33). When the rotary switch (33) is rotated to the first position, gas is allowed to flow unidirectionally in the inflation tube (3). When the rotary switch (33) is rotated to the second position, gas is prevented from flowing in the inflation tube (3). The rigid tube (2) slides along the inflation tube (3) on the distal side of the one-way valve (32).

4. The rectal occlusion device inflation apparatus according to claim 1, characterized in that, The inflation tube (3) is a flexible tube, and the proximal end of the inflation tube (3) forms an air inlet (34) for communication with an external air source device.

5. The rectal occlusion device inflation apparatus according to claim 1, characterized in that, It also includes a first stop plate (4) and a second stop plate (5). The first stop plate (4) is fixedly sleeved on the proximal end of the rigid tube (2), and the second stop plate (5) is fixedly sleeved on the proximal end of the inflation tube (3). The rigid tube (2) slides along the inflation tube (3) on the distal side of the second stop plate (5). When the rectal occluder is located at the deepest part of the rectum, and the air inlet (31) is connected to the air inlet (14) of the rectal occluder, and the distal end of the rigid tube (2) is axially abutting against the rectal occluder, the first stop plate (4) is located outside the anus, and the distance between the first stop plate (4) and the second stop plate (5) is greater than 1.5cm.

6. The rectal occlusion device inflation apparatus according to claim 5, characterized in that, The outer perimeter of the first stop plate (4) is a circle with a diameter of 2 to 3 cm, the outer perimeter of the second stop plate (5) is a strip, the length of the second stop plate (5) is 4 to 6 cm, and the width of the second stop plate (5) is 1.5 to 3 cm.

7. The rectal occlusion device inflation apparatus according to claim 5, characterized in that, The first stop plate (4) is provided with a first structure, and the second stop plate (5) is provided with a second structure. The first structure and the second structure cooperate to form a detachable connection for axial positioning of the rigid tube (2). The first structure and the second structure are loosened to allow the rigid tube (2) to slide axially along the inflation tube (3).

8. The rectal occlusion device inflation apparatus according to claim 7, characterized in that, The first structure includes a T-shaped key, which has a first rod portion (42) extending axially along the rigid tube (2) and a second rod portion (43) extending radially along the rigid tube (2). The first end of the first rod portion (42) is fixedly connected to the surface of the first stop plate (4) facing the second stop plate (5), and the second end of the first rod portion (42) is fixedly connected to the middle part of the second rod portion (43). The second structure includes an arc-shaped through hole (44) opened on the second stop plate (5) and a strip-shaped through hole (45) that allows the first rod part (42) and the second rod part (43) to pass through. One end of the arc-shaped through hole (44) is connected to the middle part of the strip-shaped through hole (45). When the second rod (43) passes through the strip-shaped through hole (45) and the first rod (42) passes through the strip-shaped through hole (45), during the process of the rigid tube (2) rotating circumferentially along the inflation tube (3), the first rod (42) rotates around the inflation tube (3) along the arc-shaped through hole (44), and the arc-shaped through hole (44) prevents the second rod (43) from passing through.

9. The rectal occlusion device inflation apparatus according to claim 8, characterized in that, On the surface of the second baffle away from the first baffle, a boss (46) extending along the arc-shaped through hole (44) is provided at each of the two arc-shaped edges of the arc-shaped through hole (44); When the second rod (43) passes through the strip-shaped through hole (45) and the first rod (42) passes through the strip-shaped through hole (45), during the circumferential rotation of the rigid tube (2) along the inflation tube (3), the first rod (42) can rotate along the arc-shaped through hole (44) to the side of the boss (46) away from the strip-shaped through hole (45).

10. The rectal occlusion device inflation apparatus according to claim 1, characterized in that, The rigid tube (2) has a length of 25-35cm and a diameter of 8.5-10.5mm. The air tube (3) has a diameter of 5-7mm.

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