Multi-size adaptive neurosurgery ventricular drainage tube pressure-resistant fixing cap

Abstract

The invention discloses a multi-size adaptive neurosurgery ventricular drainage tube pressure-resistant fixing cap which comprises a protective head cap and an adjusting supporting structure arranged on the inner side of the protective head cap. The adjusting supporting structure comprises a supporting hoop, the inner side of the supporting hoop is filled with an air bag layer, and the upper end of the supporting hoop is provided with a threading pipe, a limiting piece and a sleeve. A stretching rod is arranged at the upper end of the threading pipe, an arc-shaped clamping piece is fixedly connected to the end, facing the interior of the threading pipe, of the stretching rod, and the arc-shaped clamping piece is used for clamping a drainage pipe; a mesh gauze layer and a rope binding belt are further arranged on the inner side of the protective head cap. According to the anti-pressing fixing cap, the threading tube penetrates out of the drainage tube, the arc-shaped clamping pieces are clamped and attached to the outer portion of the drainage tube, the situation that the drainage tube shakes to cause discomfort of a wound on the head of a patient is avoided, the antibacterial and breathable effects of the head cap are improved through the mesh gauze layer, and the size of the head cap is adjusted through the elastic pull rope in the rope binding belt according to the head circumference of the patient. The device has the advantages of improving the head comfort of a patient, facilitating the wound recovery effect and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of neurosurgery ventricles, and relates to a ventricular drainage tube fixing device, in particular to a multi-size adaptable neurosurgery ventricle drainage tube pressure-proof fixing cap. Background Art

[0002] The ventricular part of neurosurgery focuses on lesions that may occur within the ventricles, including tumors, inflammation, hemorrhage and other lesions. Such lesions may hinder the normal flow of cerebrospinal fluid, leading to increased intracranial pressure and other serious neurological dysfunctions. Therefore, neurosurgeons will use cranial surgery techniques and methods for diagnosis and treatment. After cranial surgery, the patient needs to wear an elastic head cap to isolate the wound from harmful substances such as dust and bacteria in the external environment, thereby accelerating wound recovery.

[0003] Patent CN220558152U discloses a postoperative mesh cap for the head, which solves the problems of existing fixing devices that are easy to fall off and cannot fix the drainage tube; it includes a hemispherical head cap with a downward opening, an anti-pressure neck strap is provided on the rear side of the lower end of the head cap, and an annular fixing strap is provided at the lower end of the anti-pressure neck strap. The upper end of the head cap is provided with multiple fixing tubes evenly distributed along the circumferential direction, and a rectangular fixing shell is provided at the upper end of the fixing tube. A through hole is provided at the upper end of the fixing shell, which is coaxial with the fixing tube and passes through it from top to bottom. A rectangular push plate is slidably connected in the fixing shell, and a clamping hole is provided on the push plate that passes through it from top to bottom and can be connected to the through hole.

[0004] Patent CN208003238U discloses a medical ventricular drainage tube fixation device, including a first head fixation device and a second head fixation device. The first head fixation device is a partially spherical shell, and the second head fixation device is a mesh elastic fixing sleeve. The partially spherical shell includes a hat brim, a head protection zone and behind-the-ear fixing areas on both sides. The hat brim and the head protection zone are hard structures, and the hat brim and the head protection zone are connected to form the shape of half a hat. A first fixing hole is provided in the middle of the head protection zone, and a left fixing hole and a right fixing hole are respectively provided on both sides; the two sides of the head protection zone are respectively connected to the behind-the-ear fixing areas, and the behind-the-ear fixing areas extend to the left and right from both sides of the head protection zone to form an arc structure.

[0005] In the current existing technology, postoperative head caps generally adopt an elastic mesh bag structure to completely cover the wound surface and the patient's head, and use elastic ropes to fix it to the patient's chin to prevent the head cap from moving. However, the elastic mesh bag can easily exert great pressure on the wound area, which is not conducive to rapid recovery of the wound. In addition, the head appears slightly bloated when worn, and the chin is easily indented on the face when fixed with an elastic rope, causing discomfort to the patient's face and ears. Therefore, it is necessary to design a neurosurgery ventricular drainage tube fixing cap with good adaptability and not prone to indentation. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a pressure-proof fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptability, which has the advantages of adapting to the head circumference of patients of multiple sizes to improve wearing comfort and breathability, and solves the problems that the existing elastic mesh head cap is not conducive to wound recovery due to too tight wrapping and compression during wearing, and the chin fixing method is prone to cause indentation discomfort in the above-mentioned background art.

[0007] To achieve the purpose of adapting to the head circumference of patients of multiple sizes to improve wearing comfort and breathability, the present invention provides the following technical solutions:

[0008] A pressure-proof fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptability, including a protective head cap and an adjustment and support structure, and the adjustment and support structure is arranged on the protective head cap. The protective head cap serves as the main structure of the pressure-proof fixing cap and is used to be put on the patient's head during use; the adjustment and support structure is used to fix and clamp the drainage tube to prevent the drainage tube from causing damage such as pressure sores to the patient's head.

[0009] Furthermore, the adjustment and support structure includes a support hoop sewn on the inner side of the protective head cap. An airbag layer is arranged on the inner side of the support hoop. A through pipe is arranged on the top of the support hoop, and a limiting member is arranged on the outer side of the through pipe; a clamping assembly is arranged at the upper end of the through pipe for clamping the drainage tube, and the clamping assembly is arranged above the limiting member and includes a through pipe, a stretching rod, an arc-shaped clip and a first spring ring; a stretching rod is arranged at the upper end of the through pipe, and arc-shaped clips are fixedly connected to the ends of the stretching rod facing the inside of the through pipe, and the arc-shaped clips are used to clamp the drainage tube; a mesh gauze layer is arranged on the top of the protective head cap, a drawstring belt is sewn on the inner layer of the protective head cap, an elastic drawstring is arranged on the inner layer of the drawstring belt, and an adjusting member for adjusting its tightness is arranged on the outside of the elastic drawstring.

[0010] Preferably, the support hoop includes a first keel hoop and a second keel hoop in a semi-circular ring structure, and the two are rotatably connected; two cavity grooves are opened on the inner sides of the first keel hoop and the second keel hoop; a part of the airbag layer is filled inside the cavity grooves, and the other part extends outside the cavity grooves and gently contacts the patient's head during use. An inflation port is opened on the side of the first keel hoop and the second keel hoop facing the outside of the protective head cap, and the inflation port is connected to the airbag layer in a through manner. A through hole corresponding to the position of the inflation port is opened on the protective head cap, and the airbag layer is inflated through this through hole.

[0011] Preferably, the first keel hoop and the second keel hoop are arranged in a staggered position, a sleeve is fixed on the top of the first keel hoop, the guide tube is rotatably connected to the inner side of the sleeve, and the bottom of the guide tube is fixedly connected to the second keel hoop. The limiting member includes: an engaging tooth ring fixed to the outside of the guide tube, a connecting rod fixed to the sleeve, and a magnetic ring connected to the connecting rod. The connecting rod is a two-section structure, the magnetic ring is a semicircular structure, and the inner side of the magnetic ring is provided with an inner tooth layer adapted to the engaging tooth ring. The inner side of the guide tube is a hollow structure, and a channel is reserved for the drainage tube to pass through.

[0012] Preferably, the inner wall of the through-tube is provided with four slots, and each slot is fixedly connected to a through-tube with a convex structure on the side close to the outside of the through-tube. The through-tube includes a first tube end and a second tube end. A first spring ring is provided inside the first tube end, and the first spring ring is sleeved on the outside of the stretching rod. The stretching rod extends to the outside of the second tube end at one end away from the through-tube, and has a small handle perpendicular to the length direction of the stretching rod. The diameter of the second tube end is larger than the diameter of the first tube end, and the inner side of the arc-shaped clip is a threaded structure.

[0013] Preferably, a drawstring is sewn around the lower inner side of the protective head cap, and its inner layer is a bag-type structure; a loop-structured elastic drawstring is provided around the inner side of the drawstring; perforations are provided on the front sides of the protective head cap and the drawstring, and one end of the elastic drawstring extends to the outside of the front side of the protective head cap through the perforations.

[0014] Preferably, the adjusting member includes a ball groove block that is sleeved on the outside of the elastic pull rope, a second spring ring is fixedly connected to one side of the inner wall of the ball groove block, and a pressure rod passing through the ball groove block is provided on the other side; the second spring ring and the pressure rod are connected to both ends of the adjusting ball; the elastic pull rope is sleeved on the inside of the adjusting ball.

[0015] Preferably, the mesh cloth layer includes an antibacterial surface layer sewn to the inner layer of the top of the protective head cap, the antibacterial surface layer is a blended structure of nano-silver antibacterial fiber and kapok fiber, and a breathable surface layer is sewn on the outer layer of the antibacterial surface layer.

[0016] Compared with the prior art, the present invention provides a multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixing cap, which has the following beneficial effects:

[0017] (1) The multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixed cap adapts to the patient's head shape through the first keel hoop and the second keel hoop, supports the head cap structure to avoid excessive softness and adhesion to the wound site, resulting in reduced wound permeability, and at the same time, the air bag layer fits the head skin to improve the patient's head comfort.

[0018] (2) The multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixing cap is passed through the drainage tube, and the movement range of the stretching rod is constrained by the first spring coil. The arc-shaped clip of the stretching rod is clamped and fitted to the outside of the drainage tube to prevent the drainage tube from shaking and causing discomfort to the patient's head wound.

[0019] (3) The multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixed cap uses an antibacterial surface layer made of a blend of nano-silver antibacterial fiber and kapok fiber and a breathable surface layer made of a blend of polyester fiber and hemp fiber to further improve the antibacterial and breathable effect of the cap, avoid sweat accumulation in the head, and facilitate wound recovery.

[0020] (4) The multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixed cap adjusts the head cap size according to the patient's head circumference by stretching the elastic drawstring. At the same time, the second spring coil pushes the adjustment ball to press the elastic drawstring to prevent the elastic drawstring from moving after adjustment, thereby achieving a limiting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of a multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixing cap provided in this application;

[0022] Figure 2 A schematic cross-sectional view of a multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixing cap provided in this application, with only the protective head cap partially cut away;

[0023] Figure 3 Schematic diagram of the structure of suture holes and cavity grooves;

[0024] Figure 4 It is a schematic diagram of the main structure of the supporting hoop structure;

[0025] Figure 5 It is an enlarged structural diagram of the guide tube, the limiter and the casing;

[0026] Figure 6 is an enlarged structural diagram of the first keel hoop;

[0027] Figure 7 A schematic top view of the structure of a multi-size adaptable neurosurgery ventricular drainage tube pressure-proof fixing cap provided in this application;

[0028] Figure 8 Schematic diagram of the top view of the stretching rod, arc-shaped clip, through tube and first spring coil;

[0029] Figure 9 Schematic diagram of the structure of the adjustment member when the pressure rod is not pressed;

[0030] Figure 10Schematic diagram of the adjusting member in the state where the pressing rod is pressed;

[0031] Figure 11 Schematic diagram of the structure of the mesh gauze layer;

[0032] Reference numerals:

[0033] 1. Protective headgear;

[0034] 2. Adjusting support structure;

[0035] 201. Support hoop; 2011. First keel hoop; 2012. Second keel hoop;

[0036] 202. Airbag layer;

[0037] 203. Threading tube;

[0038] 204. Limiting member; 2041. Engaging tooth ring; 2042. Connecting rod; 2043. Magnetic attraction ring;

[0039] 205. Tensile rod;

[0040] 206. Arc-shaped clip;

[0041] 207. Mesh gauze layer; 2071. Antibacterial surface layer; 2072. Breathable surface layer;

[0042] 208. Cord;

[0043] 209. Elastic drawstring;

[0044] 210. Adjusting member; 2101. Ball groove block; 2102. Second spring coil; 2103. Adjusting ball; 2104. Pressing rod;

[0045] 3. Inflation port;

[0046] 4. Sleeve;

[0047] 5. Through tube; 501. First tube end; 502. Second tube end;

[0048] 6. First spring coil;

[0049] 7. Perforation;

[0050] 8. Suture hole;

[0051] 9. Cavity groove. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0053] Embodiment 1 A pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation

[0054] Reference Figures 1 to 11 , a pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation provided in this embodiment mainly includes:

[0055] (1) Main body part

[0056] Reference Figures 1 to 4 , a protective head cap 1 and an adjustment support structure 2; the protective head cap 1 is the main structure of the pressure-resistant fixing cap and is sleeved on the patient's head. The head cap is made of medical non-woven fabric; the adjustment support structure 2 is used to connect the patient's head with the protective head cap 1 and is arranged inside the protective head cap 1.

[0057] The adjustment support structure 2 includes two support hoop rings 201. The support hoop rings 201 are a first keel hoop ring 2011 and a second keel hoop ring 2012 which are semi-circular ring structures arranged in a cross shape. The first keel hoop ring 2011 and the second keel hoop ring 2012 are provided with suture holes 8 on the side facing the protective head cap 1. The first keel hoop ring 2011, the second keel hoop ring 2012 and the protective head cap 1 are stitched and fixed by passing a suture through the suture holes 8. Among them, the first keel hoop ring 2011 is above the second keel hoop ring 2012.

[0058] Both the inner sides of the first keel hoop ring 2011 and the second keel hoop ring 2012 are provided with two concave-shaped cavities 9. An airbag layer 202 is filled in the cavities 9; a part of the airbag layer 202 is filled inside the cavity 9, and a part extends outside the cavity 9, and the extended part gently contacts the patient's head. An inflation port 3 is provided on the side of the first keel hoop ring 2011 and the second keel hoop ring 2012 facing the protective head cap 1. The inflation port 3 is connected to the airbag layer 202 in a through manner. Four through holes corresponding to the positions of the inflation ports 3 are provided on the protective head cap 1, and the airbag layer 202 can be conveniently inflated through these through holes.

[0059] When the airbag is inflated through the inflation port 3, the airbag layer 202 will quickly fill and bulge; the two support hoop rings 201 are made of resin materials with excellent strength and toughness, which are convenient for adapting to wrap the patient's head, and at the same time can adapt to a certain deformation of the head circumference, and the airbag layer 202 will fit the scalp to avoid a foreign body sensation of the hoop on the head.

[0060] (2) Details of the adjustment support structure: Direction adjustment between two keel hoops

[0061] Reference Figures 5 to 7 , a hollow sleeve 4 is fixedly arranged at the top of the first keel hoop 2011, and a through pipe 203 is fixedly arranged on the second keel hoop 2012. The through pipe 203 is arranged inside the sleeve 4, that is, the second keel hoop 2012 is rotationally connected to the sleeve 4 of the first keel hoop 2011 through the through pipe 203, ensuring that a certain range of rotational effect can occur between the two hoops, facilitating the folding and storage of the protective headgear 1.

[0062] The through pipe 203 and the sleeve 4 are connected by a limiting member 204. The limiting member 204 includes a meshing tooth ring 2041, a connecting rod 2042, and a magnetic attraction ring 2043; the meshing tooth ring 2041 is fixed outside the through pipe 203; there are 2 connecting rods 2042, which are respectively symmetrically and rotatably connected to the left and right sides of the sleeve 4. The connecting rods 2042 are both two-piece structures for controlling the relative position of the magnetic attraction ring 2043; at one end of each of the two connecting rods 2042, a semi-circular magnetic attraction ring 2043 is rotatably connected. An inner tooth layer adapted to the meshing tooth ring 2041 is arranged on the inner sides of the two magnetic attraction rings 2043 (visible in Figure 6 ). The inner side of the through pipe 203 is a hollow structure and is provided with a channel for the drainage pipe to pass through. The drainage pipe is led out from the patient's head wound and passes through the inner side of the through pipe 203, facilitating the drainage of the effusion from the head wound.

[0063] The upper end of the protective headgear 1 has a through structure, and the above-mentioned sleeve 4, through pipe 203, and limiting member 204 are all arranged at this through part.

[0064] When the second keel hoop 2012 drives the through pipe 203 to rotate, the meshing tooth ring 2041 outside the through pipe 203 will rotate synchronously. When wearing or stacking, it is necessary to prevent the second keel hoop 2012 from rotating. By magnetically docking the magnetic attraction rings 2043 on the left and right sides of the sleeve 4, and using the inner tooth layer on the inner side of the magnetic attraction ring 2043 to mesh with the meshing tooth ring 2041, the rotation of the through pipe 203 and the second hoop 2012 is restricted. The connecting rod 2042 is a two-piece rotating structure, which can facilitate the direction adjustment of the magnetic attraction ring 2043.

[0065] (3) Details of the adjustment support structure: Drainage pipe fixing structure

[0066] Reference Figure 8Above the meshing gear ring 2041, four slots are evenly penetrated on the inner wall of the guide tube 203 at the same horizontal line. Each slot is fixedly connected to a convex-shaped through-tube 5 on the outside of the guide tube 203. The through-tube 5 includes a first tube end 501 and a second tube end 502. One end of the first tube end 501 is connected to the slot, and the other end is integrally formed and fixedly connected to the second tube end 502. The first tube end 501 has a hollowed-out structure, and the second tube end 502 has a non-hollowed-out structure.

[0067] The inner portion of the through tube 5 is sheathed with a stretching rod 205, one end of which extends to the outside of the second tube end 502 and has a small handle perpendicular to the length of the stretching rod 205, which can be pulled or pushed; the other end of the stretching rod 205 is fixedly connected to an arc-shaped clip 206, the inner side of which is a threaded structure, which is used to increase the friction between the stretching rod 205 and the drainage tube. The stretching rod 205 and the arc-shaped clip 206 can be made as a whole, or a combination of conventional gluing and hot pressing can be used for connection. The connection method here is the existing technology and does not affect the overall structural design of the present invention. A total of four arc-shaped clips 206 are surrounded together to form an annular structure, and the interior of the annular structure is used to pass the drainage tube. The four arc-shaped clips 206 are not connected to each other, but are relatively close in position, forming a shape similar to a circle, and are used together to fix the drainage tube.

[0068] A first spring coil 6 is provided at the interlayer between the first tube end 501 and the stretching rod 205. The length of the first spring coil 6 can resist the arc-shaped clip 206 when no external force is applied. The diameter of the junction between the first tube end 501 and the second tube end 502 is smaller than the diameter of the first spring coil 6; the first spring coil 6 is confined to the inside of the first tube end 501 and will not fall out of the second tube end 502.

[0069] Specifically, in this embodiment, after the drainage tube is led out through the head, it is necessary to prevent the drainage tube from shaking to alleviate the discomfort of the patient's head wound. The stretching rod 205 is pulled through the outside of the guide tube 203. At this time, the stretching rod 205 squeezes the first spring coil 6 to compress it. After releasing the stretching rod 205, the first spring coil 6 returns to its original position and rebounds, so that the stretching rod 205 drives the arc-shaped clip 206 to move toward the internal axis direction of the guide tube 203. The arc-shaped clip 206 is clamped tightly to the outside of the drainage tube to achieve a clamping effect, thereby preventing the end of the drainage tube close to the head wound from shaking and shifting.

[0070] (4) Rope assembly

[0071] refer to Figure 9 and Figure 10A drawstring 208 is sewn around the lower inner side of the protective head cap 1. The inner layer of the drawstring 208 is a bag-shaped structure made of medical non-woven fabric. An elastic drawstring 209 with a loop structure is arranged around the inner layer of the drawstring 208. The front of the protective head cap 1 and the drawstring 208 are both provided with a perforation 7. One end of the elastic drawstring 209 extends through the perforation 7 to the outside of the front of the protective head cap 1.

[0072] The elastic pull cord 209 is externally sleeved with an adjustment member 210; the adjustment member 210 comprises a ball slot block 2101, a second spring coil 2102, an adjustment ball 2103, and a pressure rod 2104. The second spring coil 2102 is fixedly connected to the inner wall of one side of the ball slot block 2101, and the other end of the second spring coil 2102 is fixedly connected to the adjustment ball 2103. The adjustment ball 2103 has a central hole through which the elastic pull cord 209 is inserted. The elastic pull cord 209 is a loop-shaped structure, with one side encircling the inner side of the drawstring 208 and the other side passing through the hole 7, then passing through the adjustment ball 2103 and the interior of the ball slot block 2101. The pressure rod 2104 is fixedly connected to the inner wall of the other side of the ball slot block 2101, and the pressure rod 2104 passes through the inner wall of the ball slot block 2101 and extends to the outside of the ball slot block 2101.

[0073] By pressing the pressure rod 2104, the pressure rod 2104 compresses the second spring coil 2102, so that the gap between the adjusting ball 2103 and the inner wall of the ball slot block 2101 is increased, which facilitates the stretching and pulling of the elastic pull rope 209. At this time, the elastic pull rope 209 is pulled to stretch and tighten it, and the adaptability of the protective head cap 1 to the patient's head is adjusted. When the pressure rod 2104 is released, the second spring coil 2102 rebounds and pushes the adjusting ball 2103 to fit tightly against the inner wall of the ball slot block 2101, thereby pressing the elastic pull rope 209 and limiting the pulling of the elastic pull rope 209, thereby achieving the goal of stretching the elastic pull rope 209 to adjust the size of the head cap, and then using the adjusting ball 2103 to press and limit the elastic pull rope 209 from continuing to pull.

[0074] (5) Mesh cloth layer structure

[0075] refer to Figure 11 The inner layer of the top of the protective head cap 1 is sewn with a mesh cloth layer 207; the inner layer of the mesh cloth layer 207 is an antibacterial surface layer 2071, and the antibacterial surface layer 2071 is a blended structure of nano-silver antibacterial fiber and kapok fiber; the outer layer of the antibacterial surface layer 2071 is sewn with a breathable surface layer 2072, and the breathable surface layer 2072 is a blended structure of polyester fiber and linen fiber.

[0076] In this embodiment, the nano-silver antibacterial fiber has excellent antibacterial effects, and when combined with kapok fiber, it can improve the air permeability and sweat wicking performance, effectively ensuring the air permeability of the head and avoiding the problem of anaerobic bacteria growth caused by the accumulation of hot and humid sweat gas at the wound site. The blended fabric of polyester fiber and ramie fiber is used as the outer structure of the gauze layer 207, which can improve the wear resistance of the gauze layer 207 and maintain a certain air permeability effect.

[0077] In summary, for the multi-size adaptable anti-pressure fixation cap for neurosurgical ventricular drainage tubes, the first keel hoop 2011 and the second keel hoop 2012 adapt to the shape of the patient's head, supporting the head cap structure to avoid excessive soft collapse and attachment to the wound site, which may reduce the air permeability of the wound. At the same time, the airbag layer 202 fits the head skin to improve the comfort of the patient's head. The drainage tube passes through the through-tube 203. The movement range of the stretching rod 205 is restricted by the first spring ring 6. The arc-shaped clip 206 of the stretching rod 205 clamps and fits on the outside of the drainage tube to prevent the drainage tube from shaking and causing discomfort to the patient's head wound. The antibacterial surface layer 2071 made of the blended material of nano-silver antibacterial fiber and kapok fiber and the breathable surface layer 2072 made of the blended material of polyester fiber and ramie fiber further improve the antibacterial and breathable effects of the head cap, avoiding the accumulation of sweat gas on the head and being beneficial to the wound recovery effect. The head cap size is adjusted by the stretching elastic cord 209 according to the patient's head circumference. At the same time, the second spring ring 2102 pushes the adjusting ball 2103 to press the elastic cord 209 to prevent the elastic cord 209 from moving after adjustment, achieving a limiting effect.

[0078] It should be noted that in the present invention, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0079] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0080] The above description of the embodiments is provided to enable those of ordinary skill in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present invention as disclosed should fall within the protection scope of the present invention.

Claims

1. A pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation, characterized in that: It includes a protective headgear (1) and an adjustment support structure (2). The protective headgear (1) is the main structure of the anti-pressure fixing cap, and the adjustment support structure (2) is arranged on the protective headgear (1) for fixing and clamping a drainage tube. The adjustment support structure (2) includes a support hoop (201) sewn on the inner side of the protective headgear (1). The support hoop (201) includes a first keel hoop (2011) and a second keel hoop (2012) which are semi-circular ring structures arranged crosswise. Among them, the first keel hoop (2011) is above the second keel hoop (2012). An airbag layer (202) is arranged on the inner sides of the first keel hoop (2011) and the second keel hoop (2012), and the airbag layer (202) contacts the head when in use. The first keel hoop (2011) and the second keel hoop (2012) are rotatably connected: a hollow sleeve (4) is fixedly arranged at the top of the first keel hoop (2011), and a hollow threading tube (203) is fixedly arranged on the second keel hoop (2012). The threading tube (203) is arranged inside the sleeve (4). The threading tube (203) and the sleeve (4) are connected by a limiting member (204). The inner side of the threading tube (203) allows the drainage tube to pass through. The upper end of the protective headgear (1) is a through structure, and the sleeve (4), the threading tube (203), and the limiting member (204) are all arranged at this through position. A clamping assembly is arranged at the upper end of the threading tube (203) for clamping the drainage tube. A drawstring (208) is sewn around the lower part of the inner side of the protective headgear (1). An elastic drawstring (209) with a loop structure is arranged around the inner layer of the drawstring (208), and an adjusting member (210) is sleeved outside the elastic drawstring (209). A mesh gauze layer (207) is sewn on the inner layer of the top of the protective headgear (1).

2. The anti-pressure fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 1, characterized in that, The first keel hoop (2011) and the second keel hoop (2012) are provided with suture holes (8) on the side facing the protective headgear (1), and the first keel hoop (2011), the second keel hoop (2012) and the protective headgear (1) are sutured and fixed by passing a suture through the suture holes (8). Two concave-shaped cavities (9) are respectively arranged on the inner sides of the first keel hoop (2011) and the second keel hoop (2012). A part of the airbag layer (202) is filled inside the cavities (9), and a part extends outside the cavities (9). An inflation port (3) is arranged on the side of the first keel hoop (2011) and the second keel hoop (2012) facing the protective headgear (1), and the inflation port (3) is communicated with the airbag layer (202). Four through holes corresponding to the positions of the inflation ports (3) are arranged on the protective headgear (1), and the airbag layer (202) is inflated through these through holes.

3. The anti-pressure fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 1, characterized in that The limiting member (204) includes a meshing tooth ring (2041), a connecting rod (2042), and a magnetic attraction ring (2043). The meshing tooth ring (2041) is fixed on the outside of the threading tube (203). The connecting rod (2042) has a two-section structure and is used to control the relative position of the magnetic attraction ring (2043). One end is arranged on the sleeve (4); the other end of the connecting rod (2042) is connected with a semi-circular magnetic attraction ring (2043), and an inner tooth layer adapted to the meshing tooth ring (2041) is arranged on the inner sides of the two magnetic attraction rings (2043).

4. A pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation, characterized in that, The clamping assembly is arranged above the limiting member (204) and includes a through pipe (5), a stretching rod (205), an arc-shaped clamping piece (206) and a first spring ring (6); Four slot holes are uniformly and penetratingly opened at the same horizontal line on the inner wall of the threading pipe (203), and a through pipe (5) with a convex structure is fixedly connected to the outside of the threading pipe (203) for each slot hole; a stretching rod (205) is sleeved inside the through pipe (5), and an arc-shaped clamping piece (206) is arranged at each of the mutually approaching ends of the stretching rod (205), and the inner side of the arc-shaped clamping piece (206) has a threaded structure for clamping the drainage pipe; The through pipe (5) includes a first pipe end (501) and a second pipe end (502). One end of the first pipe end (501) is connected to the slot hole and integrally and fixedly connected to the second pipe end (502); the first pipe end (501) has a structure with a hollowed-out pipe wall, and the second pipe end (502) has a structure with a non-hollowed-out pipe wall.

5. The anti-pressure fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 4, characterized in that, A first spring ring (6) is arranged at the interlayer between the first pipe end (501) and the stretching rod (205), and the diameter at the connection of the first pipe end (501) and the second pipe end (502) is smaller than the diameter of the first spring ring (6); the first spring ring (6) cannot escape from the second pipe end (502).

6. The pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 5, characterized in that, A small handle perpendicular to the length direction of the stretching rod (205) is arranged at each of the mutually remote ends of the stretching rod (205), extending to the outside of the second pipe end (502) for pulling or pushing the stretching rod (205).

7. A pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation, characterized in that, The connection mode between the stretching rod (205) and the arc-shaped clamping piece (206) is any one of integral molding, glue bonding or hot pressing.

8. A pressure-resistant fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation, characterized in that, The inner layer of the cord band (208) has a pouch-like structure; perforations (7) are opened on both the protective headgear (1) and the front surface of the cord band (208), and one end of the elastic drawstring (209) extends to the outside of the front surface of the protective headgear (1) through the perforation (7).

9. The anti-pressure fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 1, characterized in that, The adjusting member (210) includes a ball groove block (2101), a second spring ring (2102), an adjusting ball bead (2103) and a pressing rod (2104); A second spring ring (2102) is fixedly connected to one inner wall of the ball groove block (2101), and a pressing rod (2104) is fixedly connected to the other inner wall. The pressing rod (2104) penetrates through the inner wall of the ball groove block (2101) and extends to the outside of the ball groove block (2101); The other end of the second spring ring (2102) is fixedly connected to an adjusting ball bead (2103), and the adjusting ball bead (2103) has a perforation in the middle, and the elastic drawstring (209) is threaded through the hole.

10. The anti-pressure fixing cap for a neurosurgical ventricular drainage tube with multi-size adaptation according to claim 1, characterized in that, The inner layer of the gauze net layer (207) is an antibacterial surface layer (2071), and the antibacterial surface layer (2071) is a blended structure of nano silver antibacterial fibers and kapok fibers; an air-permeable surface layer (2072) is sewn on the outer layer of the antibacterial surface layer (2071), and the air-permeable surface layer (2072) is a blended structure of polyester fibers and hemp fibers.

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