An improved external ventricular drainage device

Abstract

The present invention belongs to the technical field of extracerebral ventricular drainage, and in particular to an improved extracerebral ventricular drainage device, comprising a handle, one end of the handle is fixedly connected to a limiting block, one end of the limiting block is fixedly connected to a puncture needle, a connecting block is clamped on the surface of the limiting block, one end of the connecting block is fixedly connected to a clamping block, a joint is sleeved on the surface of the connecting block, and one end of the joint is fixedly connected to a drainage needle; the present invention, by arranging a handle, a limiting block, a puncture needle, a connecting block, a clamping block, a joint, a drainage needle, a groove, a clamping groove, a first circular hole, a limiting groove and a second circular hole, in actual application, through the cooperation among the above, the force area of ​​the handle during the puncture process is increased, thereby making the puncture process faster and more convenient, and at the same time, under the action of the limiting groove and the limiting plate, the handle can be used to rotate the joint and the drainage needle, thereby adjusting the opening direction of the drainage needle and making the drainage position more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of external cerebral ventricular drainage, and in particular relates to an improved external cerebral ventricular drainage device. Background Art

[0002] Ventricular puncture and drainage, also known as cisternal puncture and drainage, is a neurosurgery / general neurosurgery surgical technique. Ventricular puncture and drainage is suitable for: patients with severe intracranial pressure increased due to hydrocephalus, when the condition is critical or even brain herniation or coma occurs, ventricular puncture and drainage is first used as an emergency decompression rescue measure to create conditions for further examination and treatment. For patients with intraventricular hemorrhage, puncture and drainage of bloody cerebrospinal fluid can reduce ventricular reaction and prevent ventricular system obstruction. The force points of ventricular extraventricular drainage devices in the prior art are mostly small circles, but the force points of this type of device are small, which makes puncture inconvenient. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides an improved external ventricular drainage device, which has the characteristic of convenient puncture.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an improved extraventricular drainage device, comprising a handle, one end of the handle is fixedly connected to a limiting block, one end of the limiting block is fixedly connected to a puncture needle, a connecting block is clamped on the surface of the limiting block, one end of the connecting block is fixedly connected to a clamping block, a joint is sleeved on the surface of the connecting block, one end of the joint is fixedly connected to the drainage needle, a groove is provided inside the joint, the joint is clamped with the connecting block through the groove, a clamping groove is provided inside the groove, a clamping block is clamped inside the clamping groove, a first circular hole is provided inside the joint, a second circular hole is provided inside the connecting block, a limiting groove is provided on the surface of the connecting block, and the connecting block is connected to the limiting plate through the limiting groove.

[0005] Preferably, the diameter of the groove is the same as that of the connecting block, the number of the slots and the number of the blocks are both two, and the size and shape of the slots and the blocks are the same.

[0006] Preferably, the diameter of the first circular hole is the same as the inner diameter of the drainage needle, and the diameter of the second circular hole is the same as the diameter of the puncture needle.

[0007] Preferably, the puncture needle is a solid needle, and the drainage needle is a hollow needle.

[0008] Preferably, the handle is configured to be conical in shape.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention, by arranging a handle, a limit block, a puncture needle, a connecting block, a clamping block, a joint, a drainage needle, a groove, a clamping slot, a first circular hole, a limit groove and a second circular hole, in actual application, through the cooperation among the above, the force area of ​​the handle during the puncture process is increased, thereby making the puncture process faster and more convenient. At the same time, under the action of the limit groove and the limit plate, the handle can be used to rotate the joint and the drainage needle, thereby adjusting the opening direction of the drainage needle and making the drainage position more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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:

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the joint in the present invention;

[0014] Figure 3 It is a structural schematic diagram of the connection block in the present invention;

[0015] In the figure: 1. handle; 2. limit block; 3. puncture needle; 4. connection block; 5. clamping block; 6. connector; 7. drainage needle; 8. groove; 9. clamping slot; 10. first circular hole; 11. limit slot; 12. second circular hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example

[0018] See also Figure 1-3The present invention provides the following technical solutions: an improved extraventricular drainage device, comprising a handle 1, one end of the handle 1 is fixedly connected to a limiting block 2, one end of the limiting block 2 is fixedly connected to a puncture needle 3, the surface of the limiting block 2 is clamped with a connecting block 4, one end of the connecting block 4 is fixedly connected to a clamping block 5, the surface of the connecting block 4 is sleeved with a joint 6, one end of the joint 6 is fixedly connected to a drainage needle 7, a groove 8 is provided inside the joint 6, the joint 6 is clamped with the connecting block 4 through the groove 8, a clamping groove 9 is provided inside the groove 8, the clamping block 5 is clamped inside the clamping groove 9, a first circular hole 10 is provided inside the joint 6, the connecting block 4 A second circular hole 12 is provided inside the connecting block 4, a limiting groove 11 is provided on the surface of the connecting block 4, and the connecting block 4 is connected to the limiting plate through the limiting groove 11. By arranging the handle 1, the limiting block 2, the puncture needle 3, the connecting block 4, the clamping block 5, the joint 6, the drainage needle 7, the groove 8, the clamping slot 9, the first circular hole 10, the limiting groove 11 and the second circular hole 12, in actual application, through the cooperation among the above, the force area of ​​the handle 1 during the puncture process is increased, so that the puncture process is faster and more convenient. At the same time, under the action of the limiting groove 11 and the limiting plate, the handle 1 can be used to rotate the joint 6 and the drainage needle 7, so as to adjust the opening direction of the drainage needle 7 and make the drainage position more accurate.

[0019] Specifically, the diameter of the groove 8 is the same as that of the connecting block 4 , the number of the clamping slots 9 and the clamping block 5 are both set to two, and the size and shape of the clamping slots 9 and the clamping block 5 are the same.

[0020] Specifically, the diameter of the first circular hole 10 is the same as the inner diameter of the drainage needle 7 , and the diameter of the second circular hole 12 is the same as the diameter of the puncture needle 3 .

[0021] Specifically, the puncture needle 3 is a solid needle, and the drainage needle 7 is a hollow needle.

[0022] Specifically, the shape of the handle 1 is set to be conical.

[0023] The working principle and use process of the present invention are as follows: when the present invention is used, after marking the puncture point on the scalp, routine disinfection, laying a towel, anesthesia, a small hole is pierced on the scalp with a sharp knife, and according to the skull thickness measured by X-ray film, the puncture needle 3 and the drainage needle 7 are aligned with the corresponding part to be punctured, and the handle 1 is pushed by external force to make the puncture needle 3 and the drainage needle 7 penetrate the skull and dura mater, and then the handle 1 is pulled out, so that it is pulled out from the inside of the connector 6 and the drainage needle 7 with the puncture needle 3, so that the connector 6 and the drainage needle 7 are The drainage needle 7 remains inside the ventricle, and the core ventricular drainage tube is inserted into the ventricle through the cannula in the puncture direction. After cerebrospinal fluid flows out, the drainage needle 7 is pulled out, the drainage tube is fixed on the scalp, and the ventricular drainage bottle is connected. This method does not require incising the scalp or drilling the skull, is simple and fast, and has little damage. After the skull is awled, the skull cone is pulled out and the cannula is retained in the bone hole, which can prevent the scalp soft tissue from being misaligned with the bone hole. The puncture needle 3 or the drainage tube can smoothly penetrate the ventricle along the joint 6 and the drainage needle 7, avoiding the shortcomings of the general fine-pore skull awl.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned 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 external ventricular drainage device, comprising a handle (1), characterized in that: One end of the handle (1) is fixedly connected to a limiting block (2), one end of the limiting block (2) is fixedly connected to a puncture needle (3), a surface of the limiting block (2) is clamped with a connecting block (4), one end of the connecting block (4) is fixedly connected to a clamping block (5), a surface of the connecting block (4) is sleeved with a joint (6), one end of the joint (6) is fixedly connected to a drainage needle (7), a groove (8) is provided inside the joint (6), the joint (6) is clamped with the connecting block (4) through the groove (8), a clamping groove (9) is provided inside the groove (8), the clamping block (5) is clamped inside the clamping groove (9), a first circular hole (10) is provided inside the joint (6), a second circular hole (12) is provided inside the connecting block (4), a limiting groove (11) is provided on the surface of the connecting block (4), and the connecting block (4) is connected to the limiting plate through the limiting groove (11); The diameter of the groove (8) is the same as that of the connecting block (4); the number of the clamping groove (9) and the clamping block (5) is two, and the size and shape of the clamping groove (9) and the clamping block (5) are the same; The diameter of the first circular hole (10) is the same as the inner diameter of the drainage needle (7), and the diameter of the second circular hole (12) is the same as the diameter of the puncture needle (3).

2. An improved external ventricular drainage device according to claim 1, characterized in that: The puncture needle (3) is a solid needle, and the drainage needle (7) is a hollow needle.

3. An improved external ventricular drainage device according to claim 1, characterized in that: The handle (1) is configured to be conical in shape.

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