Spiral anti-folded right angle corner and ventriculoperitoneal shunt device

Abstract

The application provides a spiral anti-folding right-angle connector, which is disc-shaped, and a containing groove and a drainage groove are arranged on an upper end face, the containing groove is communicated with the drainage groove, a through hole is arranged in the middle of the containing groove, a baffle is arranged in the containing groove, and the baffle and the inner side wall of the containing groove form at least three drainage channels with different inner diameters. The right-angle connector forms multiple drainage channels by arranging multiple annular baffles in the containing groove, thereby realizing stable fixation and anti-slip of a connecting pipe, and avoiding catheter distortion or folding caused by body position change. Furthermore, the application also provides a ventriculo-peritoneal shunt device, which comprises the above right-angle connector, a first catheter, a connecting assembly, a valve assembly and a second catheter; the first catheter is fixedly communicated with the second catheter through the connecting assembly and the valve assembly, and the first catheter is arranged in the right-angle connector. The shunt device ensures the integrity of a one-way drainage path of cerebrospinal fluid, and reduces the risk of leakage caused by loose interfaces.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a spiral anti-folding right-angle turner and a ventriculoperitoneal shunt device. Background Technology

[0002] The ventriculoperitoneal shunt system is an effective implantable medical material commonly used to treat hydrocephalus. In practice, however, a contradiction often arises when connecting the ventricular drainage tube to the subcutaneous shunt pump after successful puncture: on the one hand, if the extracranial segment of the ventricular drainage tube is left too short, connection to the shunt pump becomes difficult due to limited space, and may even cause brain injury or hemorrhage due to repeated movement of the drainage tube within the ventricle; on the other hand, if it is left too long, the drainage tube may bend at an angle outside the right-angle bend at the skull opening during connection, leading to poor drainage or shunt failure, and may even require another incision in the scalp to transplant a sufficient amount of drainage tube into the peritoneal cavity without bending at an angle.

[0003] Given the aforementioned shortcomings of the existing cranial foramen right-angle turner in ventriculoperitoneal shunt systems, improvements are needed to make the cranial foramen right-angle turner more practical and effective. Specifically, it should ensure that the shunt tube at the ventricle end has sufficient length outside the cranial foramen for easy manual connection when connecting the ventricle end and the shunt pump; ensure that the drainage tube does not bend at an angle and does not require another scalp incision; and even, if the tube becomes blocked, provide a sufficiently long drainage tube to remove the blocked portion when adjusting the shunt pump. Utility Model Content

[0004] To achieve the above objectives, the first aspect of this application proposes a spiral anti-folding right-angle corner device. The right-angle corner device is disc-shaped, with a receiving groove and a diversion groove on the upper end face. The receiving groove is connected to the diversion groove. A through hole is opened in the middle of the receiving groove. A baffle wall is provided inside the receiving groove, and the baffle wall and the inner side wall of the receiving groove form at least three diversion channels with different inner diameters.

[0005] The multi-channel design allows for the selection of drainage paths with different inner diameters based on fluid pressure or viscosity, reducing fluid resistance and preventing turbulence. The separation design of the channels formed by the baffle and the receiving groove prevents particles or tissue debris from clogging a single channel. The interconnected design of the through hole and the drainage groove ensures a smooth transition of fluid from the center to the edge, suitable for right-angle turns in narrow surgical spaces.

[0006] Specifically, the baffle is an arc structure with an opening; the width of the opening is the same as the width of the drainage channel, and the openings on any two adjacent baffles are staggered.

[0007] Through the above technical solution, the staggered opening design of the arc-shaped baffle wall achieves dynamic pressure balance among multiple channels through fluid dynamics optimization.

[0008] Specifically, it also includes: fixing screw holes; fixing screw holes are set on both sides of the receiving groove.

[0009] Specifically, the baffle includes: a first baffle, a second baffle, and a third baffle; the first baffle, the second baffle, the third baffle, and the inner sidewall of the receiving tank are arranged in a ring from the inside to the outside to form the first drainage channel, the second drainage channel, and the third drainage channel, respectively.

[0010] Through the above technical solution, the multi-diameter baffle provides a graded limiting function, allowing the drainage tube to select different bending radii according to individual patient differences, reducing the risk of tube creases.

[0011] Specifically, the depth of the drainage groove is the same as the depth of the drainage channel.

[0012] Through the above technical solutions, the gentle channel structure can suppress liquid backflow and maintain unidirectional flow stability.

[0013] In a second aspect of this application, a ventriculoperitoneal shunt device is proposed, comprising the right-angle turner described in the above-mentioned technical solutions, as well as a first catheter, a connecting assembly, a valve assembly, and a second catheter;

[0014] The first conduit is fixedly connected to the second conduit via a connecting assembly and a valve assembly, and the first conduit passes through a right-angle bend.

[0015] Specifically, the connecting components include: a drainage tube, a reservoir, and a seam connecting sleeve; one end of the drainage tube is fixedly connected to the first conduit, and the other end is fixedly connected to the reservoir through the seam connecting sleeve; the reservoir is fixedly connected to the valve assembly.

[0016] Specifically, the valve assembly includes: an adjustable pressure valve and a rechargeable intelligent control valve; one end of the adjustable pressure valve is fixedly connected to the liquid reservoir, and the other end is fixedly connected to the second conduit through the rechargeable intelligent control valve.

[0017] Compared with the prior art, the advantages of this application are:

[0018] (1) By reducing the risk of catheter bending and folding through geometric shape, it is more compatible with cranial foramen, reducing local compression and tissue damage;

[0019] (2) Multiple baffles are set in the receiving tank. By differentiating the opening direction and controlling the spacing, the drainage tube is stably fixed and prevented from slipping, thus avoiding the twisting or folding of the catheter due to changes in body position. Attached Figure Description

[0020] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of this application. Other embodiments and many anticipated advantages of these embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0021] Figure 1 This is a top view of a spiral anti-folding right-angle corner device according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram showing the connection between a spiral anti-folding right-angle corner device and a first conduit according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of a ventriculoperitoneal shunt device according to an embodiment of this application.

[0024] The meanings of the numbers in the diagram are as follows: 1. First conduit; 2. Right-angle bender; 2a. Receiving groove; 2b. Screw hole; 2c. Baffle; 2c1. First baffle; 2c2. Second baffle; 2c3. Third baffle; 2e. Drainage groove; 2f. Through hole; 3. Joint connecting sleeve; 4. Liquid reservoir; 5. Adjustable pressure valve; 6. Intelligent control valve; 7. Second conduit; 8. Drainage tube. Detailed Implementation

[0025] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present application may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0026] Figure 1 This is a top view of a spiral anti-folding right-angle corner device according to an embodiment of this application, as shown below. Figure 1As shown, the right-angle turner 2 is disc-shaped, with a receiving groove 2a and a diversion groove 2e on its upper surface, the receiving groove 2a being connected to the diversion groove 2e; a through hole 2f is formed in the middle of the receiving groove 2a; a baffle wall 2c is provided inside the receiving groove 2a, the baffle wall 2c and the inner sidewall of the receiving groove 2a forming at least three diversion channels with different inner diameters; the depth of the diversion groove 2e is the same as the depth of the diversion channel; the baffle wall 2c is an arc structure with an opening; the opening width is the same as the width of the diversion channel, and the openings on each baffle wall 2c are staggered; it also includes: a fixing screw hole 2b; the fixing screw hole 2b is provided on both sides of the receiving groove 2a.

[0027] In the above technical solution, the receiving groove 2a serves as the core working area. The receiving groove 2a has a concentric circular recessed structure with a through hole 2f in the center to facilitate the main transmission path. Multiple layers of baffles 2c are arranged circumferentially inside the groove, which together with the inner sidewall of the receiving groove 2a form a multi-layer drainage channel.

[0028] The baffle 2c adopts an open arc structure with its center coinciding with the center of the disk, ensuring that the channels on each layer are evenly distributed.

[0029] The baffle 2c and the inner wall of the receiving groove 2a are arranged in a ring from the inside to the outside to form at least three drainage channels with different inner diameters. Taking a specific embodiment as an example, the baffle 2c includes a first baffle 2c1, a second baffle 2c2, and a third baffle 2c3. The three layers of baffle 2c and the inner wall of the receiving groove 2a together form the first to third drainage channels.

[0030] The width of the opening of each baffle 2c is consistent with the width of the corresponding drainage channel, and the openings on any two adjacent baffles 2c are staggered to avoid interference between fluids in different channels and achieve precise diversion and guidance.

[0031] The drainage groove 2e extends along the edge of the disc and has an arc-shaped groove structure. Its depth is exactly the same as the depth of the drainage channel, ensuring that there is no height difference obstruction when the fluid is transmitted in different areas, thus ensuring the smoothness of the transmission process.

[0032] In one specific embodiment, the diameter range of the right-angle corner bend 2 may include 20-25mm / 22-25mm, and the baffle 2c includes a first baffle 2c1, a second baffle 2c2 and a third baffle 2c3; the first baffle 2c1, the second baffle 2c2, the third baffle 2c3 and the inner sidewall of the receiving groove 2a are arranged in a ring from the inside to the outside to form a first drainage channel, a second drainage channel and a third drainage channel respectively.

[0033] To better illustrate this embodiment, a calculation model for the inner diameter of the drainage channel is constructed using the above embodiment as an example:

[0034] Using the inner diameter of the through hole 2f as the reference parameter R0, the width of the drainage channel is defined as R1 (i.e., the radial distance between two adjacent baffle walls 2c). Under the ideal condition of ignoring the thickness of the baffle wall 2c:

[0035] The first drainage channel (innermost layer) is formed by the through hole 2f and the first baffle 2c1, with an inner diameter of R0+R1.

[0036] The second drainage channel (intermediate layer) is formed by the first baffle 2c1 and the second baffle 2c2, with an inner diameter of R0+2R1.

[0037] The third drainage channel (outermost layer) is formed by the second baffle 2c2 and the third baffle 2c3, with an inner diameter of R0+3R1;

[0038] This layered design allows for flexible adjustment of the inner diameter of each channel by changing the R1 value, thus meeting the transmission requirements of different flow rates or pressures. For example, when R0 = 5mm and R1 = 2mm, the inner diameters of the three channels are 7mm, 9mm, and 11mm, respectively, forming a gradient transmission path.

[0039] Figure 2 This is a schematic diagram showing the connection between a spiral anti-folding right-angle corner device and a first conduit according to an embodiment of this application. Figure 3 This is a schematic diagram of a ventriculoperitoneal shunt device according to an embodiment of this application, as shown below. Figure 2 and Figure 3 As shown, a ventriculoperitoneal shunt device includes: the aforementioned right-angle bend 2, a first catheter 1, a connecting assembly, a valve assembly, and a second catheter 7; the first catheter 1 is fixedly connected to the second catheter 7 through the connecting assembly and the valve assembly, and the first catheter 1 passes through the right-angle bend 2; this design enables the device to achieve smooth cerebrospinal fluid shunt in complex internal environments, and the right-angle bend 2 can change the direction of the catheter to avoid affecting the flow of fluid due to catheter bending.

[0040] The connecting components include: a drainage tube 8, a reservoir 4, and a seam connecting sleeve 3; one end of the drainage tube 8 is fixedly connected to the first conduit 1, and the other end is fixedly connected to the reservoir 4 through the seam connecting sleeve 3; the reservoir 4 is fixedly connected to the valve assembly; wherein, the reservoir 4 serves to temporarily store cerebrospinal fluid, which can buffer the flow pressure of cerebrospinal fluid and prevent sudden pressure changes from causing damage to the brain.

[0041] The valve assembly includes an adjustable pressure valve 5 and a rechargeable intelligent control valve 6. One end of the adjustable pressure valve 5 is fixedly connected to the reservoir 4, and the other end is fixedly connected to the second conduit 7 via the rechargeable intelligent control valve 6. The adjustable pressure valve 5 allows doctors to precisely adjust the cerebrospinal fluid shunt pressure according to the patient's specific condition, adapting to the needs of different patients.

[0042] It is evident that those skilled in the art can make various modifications and alterations to the embodiments of this application without departing from the spirit and scope of this application. In this manner, this application also aims to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered limiting in scope.

Claims

1. A spiral anti-folding right-angle corner device, characterized in that, The right-angle turner is disc-shaped, with a receiving groove and a diversion groove on the upper surface, the receiving groove being connected to the diversion groove; a through hole is provided in the middle of the receiving groove; a baffle wall is provided inside the receiving groove, the baffle wall and the inner sidewall of the receiving groove forming at least three diversion channels with different inner diameters.

2. The spiral anti-folding right-angle corner device according to claim 1, characterized in that, The baffle is an arc structure with an opening; the width of the opening is the same as the width of the drainage channel, and the openings on any two adjacent baffles are staggered.

3. A spiral anti-folding right-angle corner device according to claim 1, characterized in that, Also includes: Fixed screw holes; the fixed screw holes are provided on both sides of the receiving groove.

4. A spiral anti-folding right-angle corner device according to claim 2, characterized in that, The baffle includes a first baffle, a second baffle, and a third baffle; the first baffle, the second baffle, the third baffle, and the inner sidewall of the receiving groove are arranged in a ring from the inside to the outside to form a first drainage channel, a second drainage channel, and a third drainage channel, respectively.

5. A spiral anti-folding right-angle corner device according to claim 1, characterized in that, The depth of the drainage groove is the same as the depth of the drainage channel.

6. A ventriculoperitoneal shunt device, characterized in that, The right-angle turner as described in any one of claims 1 to 5 further includes a first conduit, a connecting assembly, a valve assembly, and a second conduit; The first conduit is fixedly connected to the second conduit through the connecting assembly and the valve assembly, and the first conduit passes through the right-angle bend.

7. A ventriculoperitoneal shunt device according to claim 6, characterized in that, The connecting assembly includes: a drainage tube, a reservoir, and a seam connecting sleeve; one end of the drainage tube is fixedly connected to the first conduit, and the other end is fixedly connected to the reservoir through the seam connecting sleeve; the reservoir is fixedly connected to the valve assembly.

8. A ventriculoperitoneal shunt device according to claim 7, characterized in that, The valve assembly includes: an adjustable pressure valve and a rechargeable intelligent control valve; one end of the adjustable pressure valve is fixedly connected to the liquid storage bladder, and the other end is fixedly connected to the second conduit through the rechargeable intelligent control valve.

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