Improved omaya drainage system

Abstract

The utility model relates to the technical field of medical instruments, in particular to an improved omaya drainage system, which comprises a ventricular end tube, a drainage tube, a drainage tube, a drainage tube and a drainage tube, and is characterized in that the ventricular end tube comprises a first puncture end and a first output end which are communicated with each other; the ventricular end tube fixing part comprises a bone hole sealing part and a skull attaching part which are connected, a fixing through hole is formed between the upper end face of the skull attaching part and the lower end face of the bone hole sealing part in a penetrating mode, and the fixing through hole is matched with the first puncture end; the omaya bag is communicated with the first output end, and the omaya bag comprises a bag body and an auxiliary puncture base plate arranged in the bag body; the drainage assembly is communicated with the omaya bag in a puncture mode, and a single-flow-direction control piece is arranged on a pipeline in the drainage assembly. The ventricular end tube fixing part is arranged at the ventricular end tube, so that the ventricular end tube can be fixed while a bone hole is sealed, and the falling of the ventricular end tube is reduced to a great extent. The upper end face of the omaya bag is made of thickened silica gel and can resist multiple times of puncture, and a titanium alloy base plate is arranged in the bottom of the omaya bag, so that penetration and leakage are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an improved ommaya drainage system. Background Art

[0002] The Ommaya capsule was invented by Pakistani neurosurgeon Ommaya during the process of continuous drug administration in the lateral ventricle for the treatment of fungal meningitis. It is also called a "drug storage capsule" and is often used by oncologists and infectious disease doctors for intrathecal treatment of patients. Since then, it has been widely used by neurosurgeons as a ventricular drainage tool.

[0003] However, the Ommaya capsule system for drainage purposes currently does not have a dedicated matching transfer drainage system. The existing Ommaya capsule is used for continuous drainage operations: 1) The external fixation of the puncture needle is a very tricky process. If it is not firmly fixed, it is easy to fall off and damage the local scalp, increasing the risk of infection; pressurized fixation is prone to poor drainage; 2) The silicone on the puncture surface of the Ommaya capsule is thin, which is difficult to withstand repeated punctures with a larger diameter needle. The bottom of the Ommaya capsule is plastic and is easily penetrated and leaked. 3) Clinicians often use fine needle puncture drainage. Fine needles often fall off because they cannot be fixed well. Re-puncture after falling off is an important factor in damaging the scalp, and they are easy to shift during fixed drainage. Once shifted, an angle will be formed between the puncture needle and the scalp, which will directly compress the local scalp and cause local necrosis of the scalp; 4) The fixation of the ventricular end tube is not stable, making it difficult to fix and operate. The skull bone hole is open and not closed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and provide an improved ommaya drainage system, including:

[0005] The ventricular end tube comprises a first puncture end and a first output end which are interconnected;

[0006] The ventricular end tube fixing piece comprises a connected bone hole sealing piece and a skull fitting piece, wherein a fixing through hole is provided between the upper end surface of the skull fitting piece and the lower end surface of the bone hole sealing piece, and the fixing through hole matches the first puncture end;

[0007] An ommaya capsule, connected to the first output end, the ommaya capsule comprising a capsule body and an auxiliary puncture chassis built in the capsule body;

[0008] A drainage component is connected to the ommaya sac puncture, and a single flow control component is provided on the pipeline in the drainage component.

[0009] Furthermore, the first puncture end is vertically arranged with respect to the first output end, the first puncture end is arranged in the cerebral ventricle, and the first output end is placed outside the skull fitting;

[0010] The first puncture end is provided with a 7 mm scale schematic line and a 10 mm scale schematic line.

[0011] Furthermore, the bone hole sealing member is cylindrical, the skull fitting member is circular, and the circular upper end surface of the bone hole sealing member is connected to the lower end surface of the skull fitting member;

[0012] The diameter of the skull fitting is greater than the diameter of the upper end surface of the bone hole sealing member;

[0013] Furthermore, the ventricular end tube fixing piece is made of silicone.

[0014] Furthermore, the ommaya capsule is made of silicone; wherein, the upper end surface of the ommaya capsule is made of thickened silicone; and the auxiliary puncture chassis is a titanium alloy chassis.

[0015] Furthermore, the drainage component includes a drainage needle, the single-flow control component, a three-way connector, a transparent drip bottle and a drainage bag which are connected in sequence, and the drainage needle punctures the ommaya sac to achieve connection.

[0016] Furthermore, the drainage needle is a butterfly needle, and the needle head of the drainage needle includes a second puncture end and a second fixed end which are perpendicular to each other, the second puncture end punctures the ommaya sac, and the second fixed end is fixed to the outside of the ommaya sac.

[0017] Furthermore, the one-way flow control component is a one-way valve for preventing backflow.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model discloses an improved ommaya drainage system, wherein a ventricular end tube is provided with a ventricular end tube fixing piece, which can meet the requirements of fixing the ventricular end tube and sealing the bone hole at the same time, thereby greatly reducing the falling off of the ventricular end tube.

[0020] 2. The first puncture end of the ventricular end tube of the improved ommaya drainage system of the utility model is provided with a 7mm scale schematic line and a 10mm scale schematic line, which serve as a reminder of the placement depth of the ventricular end tube.

[0021] 3. The upper end surface of the ommaya bag of the improved ommaya drainage system of the utility model is made of thickened silicone, which can withstand multiple punctures, and a titanium alloy chassis is built into the bottom of the ommaya bag to avoid penetration and leakage.

[0022] 4. The utility model discloses an improved ommaya drainage system in which a one-way valve for preventing backflow is arranged in the drainage component to prevent the backflow of liquid from causing intracranial infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of an improved ommaya drainage system of the utility model.

[0025] Figure 2 This is a schematic diagram of a ventricular end tube fixing member of an improved ommaya drainage system of the utility model, (a) is a top view, (b) is a front view;

[0026] Figure 3 This is a schematic diagram of the ommaya sac structure of an improved ommaya drainage system of the utility model, (a) is a top view and (b) is a front view.

[0027] Reference numerals

[0028] 1: ventricular end tube;

[0029] 11: first puncture end; 12: first output end;

[0030] 2: Ventricular end tube fixture;

[0031] 21: bone hole sealing member; 22: skull fitting member; 23: fixing through hole;

[0032] 3: ommaya sac;

[0033] 31: capsule; 32: auxiliary puncture chassis;

[0034] 4: Drainage component;

[0035] 41: drainage needle; 42: single flow control part; 43: three-way connector; 44: transparent drip bottle; 45: drainage bag;

[0036] 411: second puncture end; 412: second fixing end; 413: needle wing;

[0037] 51: skull; 52: bone foramen. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0039] Example 1

[0040] See also Figure 1-3 The technical solution of an improved ommaya drainage system provided in this embodiment includes the following:

[0041] The ventricular end tube 1 comprises a first puncture end 11 and a first output end 12 which are interconnected;

[0042] The ventricular end tube fixing member 2 comprises a bone hole sealing member 21 and a skull fitting member 22 connected to each other, wherein a fixing through hole 23 is provided between the upper end surface of the skull fitting member 22 and the lower end surface of the bone hole sealing member 21, and the fixing through hole 23 matches the first puncture end 11;

[0043] An ommaya capsule 3, which is connected to the first output end 12, and the ommaya capsule 3 includes a capsule body 31 and an auxiliary puncture chassis 32 built in the capsule body 31;

[0044] The drainage component 4 is punctured and connected to the ommaya sac 3 , and a single flow control component 42 is provided on the pipeline in the drainage component 4 .

[0045] In a specific implementation, the ventricular end tube 1 is a bent structure, wherein the first puncture end 11 and the first output end 12 are vertically arranged, the first puncture end 11 is arranged in the ventricle, and the first output end 12 is placed outside the skull fitting 22;

[0046] In order to make the puncture depth of the first puncture end 11 in the ventricular end tube 1 have an indication function, a 7mm scale schematic line (the needle tip of the first puncture end 11 is the starting point of the scale) and a 10mm scale schematic line (the needle tip of the first puncture end 11 is the starting point of the scale) are provided on the side wall of the first puncture end 11.

[0047] Preferably, the 7 mm scale schematic line and the 10 mm scale schematic line are commonly used puncture depth indicator lines. In actual use, a complete scale line can also be provided on the side wall of the first puncture end 11.

[0048] In a specific implementation, in order to avoid the bone hole 52 from being exposed, the bone hole sealing member 21 is set to a columnar style (including a cylinder, a prism, etc.) that matches the shape of the bone hole 52. In addition, a circular skull bonding member 22 is provided, and the diameter of the skull bonding member 22 is larger than the diameter of the upper end surface of the bone hole sealing member 21; the area where the skull bonding member 22 exceeds the bone hole sealing member 21 is a fixed wing, and the skull bonding member 22 made of silicone material can be well fitted and fixed to the outside of the head to further seal the bone hole 52;

[0049] Preferably, titanium nails may also be used to fix the fixing wings to the head.

[0050] Specifically, the ommaya capsule 3 is made of silicone; wherein, the upper end surface of the ommaya capsule 3 is made of thickened silicone; and the auxiliary puncture chassis 32 is a titanium alloy chassis.

[0051] In the specific implementation, the lower end surface of the ommaya bladder 3 is also provided with thickened silicone, and a titanium alloy chassis accommodating interval is provided in the thickened silicone on the lower end surface, and the titanium alloy chassis is arranged in the titanium alloy chassis accommodating interval. Other fixing methods of the titanium alloy chassis are also within the protection scope of the present utility model.

[0052] Specifically, the drainage assembly 4 includes a drainage needle 41, the single flow control component 42, a three-way connector 43, a transparent drip bottle 44 and a drainage bag 45 which are connected in sequence, and the drainage needle 41 punctures the ommaya sac 3 to achieve communication.

[0053] Preferably, two adjacent components in the drainage component 4 are connected via a catheter.

[0054] Specifically, the drainage needle 41 is a butterfly needle, and the needle head of the drainage needle 41 includes a second puncture end 411 and a second fixed end 412 which are perpendicular to each other. The second puncture end 411 punctures the ommaya capsule 3, and the second fixed end 412 is fixed to the outside of the ommaya capsule 3.

[0055] In a specific implementation, a needle wing 413 is provided on the second fixed end 412 of the butterfly needle, and the needle wing 413 can be fixed by a film to prevent the drainage needle 41 from falling off, or it can be fixed by scalp sutures, elastic band head mandible fixation, etc.

[0056] Specifically, the one-way flow control element 42 is a one-way valve to prevent backflow. Under the action of fluid pressure in one direction, the valve flap opens; when the fluid flows in the opposite direction, the fluid pressure and the self-weight of the valve flap act on the valve seat to cut off the flow.

[0057] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved ommaya drainage system, characterized in that: include: The ventricular end tube comprises a first puncture end and a first output end which are interconnected; The ventricular end tube fixing piece comprises a connected bone hole sealing piece and a skull fitting piece, wherein a fixing through hole is provided between the upper end surface of the skull fitting piece and the lower end surface of the bone hole sealing piece, and the fixing through hole matches the first puncture end; An ommaya capsule, connected to the first output end, the ommaya capsule comprising a capsule body and an auxiliary puncture chassis built in the capsule body; A drainage component is connected to the ommaya sac puncture, and a single flow control component is provided on the pipeline in the drainage component.

2. The improved ommaya drainage system according to claim 1, characterized in that: The first puncture end is arranged perpendicularly to the first output end, the first puncture end is arranged in the cerebral ventricle, and the first output end is placed outside the skull fitting; The first puncture end is provided with a 7 mm scale schematic line and a 10 mm scale schematic line.

3. The improved ommaya drainage system according to claim 1, characterized in that: The bone hole sealing member is cylindrical, the skull fitting member is circular, and the circular upper end surface of the bone hole sealing member is connected to the lower end surface of the skull fitting member; The diameter of the skull fitting is greater than the diameter of the upper end surface of the bone hole sealing member.

4. The improved ommaya drainage system according to claim 1, characterized in that: The ventricle end tube fixing piece is made of silicone.

5. The improved ommaya drainage system according to claim 1, characterized in that: The ommaya capsule is made of silicone; wherein the upper end surface of the ommaya capsule is made of thickened silicone; and the auxiliary puncture chassis is a titanium alloy chassis.

6. The improved ommaya drainage system according to claim 1, characterized in that: The drainage component includes a drainage needle, the single flow control component, a three-way connector, a transparent drip bottle and a drainage bag which are connected in sequence. The drainage needle punctures the ommaya sac to achieve connection.

7. The improved ommaya drainage system according to claim 6, characterized in that: The drainage needle is a butterfly needle, and the needle head of the drainage needle includes a second puncture end and a second fixed end which are perpendicular to each other, the second puncture end punctures the ommaya sac, and the second fixed end is fixed to the outside of the ommaya sac.

8. The improved ommaya drainage system according to claim 1, characterized in that: The one-way flow control component is a one-way valve for preventing backflow.

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