External connection auxiliary device for Ommaya bag

Abstract

The utility model relates to an external auxiliary device for an Ommaya bag, which comprises a three-way cock, a puncture needle, a pressure measuring pipe joint and an injection joint, and three interfaces of the three-way cock are respectively connected with the puncture needle, the pressure measuring pipe joint and the injection joint. The utility model aims to provide the reliable device for measuring the pressure of the cerebrospinal fluid, extracting the cerebrospinal fluid and injecting the medicine, which is externally connected with the liquid storage bag, can be used for conveniently measuring the pressure of the cerebrospinal fluid, extracting the cerebrospinal fluid and injecting the medicine, is simple in structure and does not damage the bag wall. The liquid storage bag is externally connected with an auxiliary device, so that pains and risks caused by repeated lumbar puncture pressure measurement are avoided, and the medical workload is also relieved; the device is externally connected with an infusion apparatus, so that the infusion speed, time and quantity of medicines can be freely controlled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to Ommaya capsule technical field, especially relate to a Ommaya capsule external auxiliary device. BACKGROUND

[0002] Malignant tumor is one of the major health problems in the world, and is also a major public health problem that seriously endangers the health of Chinese people and the social development. The occurrence of meningeal metastasis in advanced malignant tumor is a major difficulty in tumor diagnosis and treatment. The treatment effect of patients with meningeal metastasis is poor, and there is a lack of effective treatment drugs in clinic. The quality of life is poor, and meningeal metastasis often causes intractable headache, dizziness, nausea, vomiting, blurred vision and other symptoms. The survival period is short, and the median survival period of patients without effective treatment is less than 3 months. Therefore, it has important clinical and social significance to improve the current situation of diagnosis and treatment of patients with meningeal metastasis.

[0003] At present, there are great deficiencies in the diagnosis standard of meningeal metastasis. The gold standard for the diagnosis of meningeal metastasis is to detect tumor cells in cerebrospinal fluid. However, the positive rate of this method is low, and repeated detection is required. The acquisition of cerebrospinal fluid needs repeated lumbar puncture, which brings great pain to the patient and also brings great burden to the clinical work. The main treatment method for meningeal metastasis is local treatment by intrathecal injection of chemotherapeutic drugs. Similarly, repeated drug administration needs repeated lumbar puncture, which brings great pain to the patient and serious burden to the clinical work. The common solution is to place an Ommaya capsule, which connects a specially designed ventricular catheter and a storage capsule under the scalp, to realize the drainage of intracranial cerebrospinal fluid and injection of chemotherapeutic drugs through the storage capsule. The pain and risk caused by repeated lumbar puncture are avoided, and the medical work burden is also reduced.

[0004] However, the device has two main defects. One is the lack of external cerebrospinal fluid pressure measuring device, which cannot measure the cerebrospinal fluid pressure. The pressure measuring tube can be used to measure the cerebrospinal fluid pressure during lumbar puncture, which is used to evaluate the therapeutic effect of meningeal metastasis (there is no standard therapeutic effect evaluation system for meningeal metastasis, and the change of cerebrospinal fluid pressure is an important therapeutic effect evaluation factor). The second is the lack of reliable cerebrospinal fluid extraction and continuous drug infusion external device. Ommaya capsule is often used with a syringe for cerebrospinal fluid extraction and drug injection, but repeated insertion of syringe needle into Ommaya capsule will cause damage to the capsule wall, and further cause liquid leakage, infection and other adverse events. Utility model content

[0005] Therefore, the utility model aims at the deficiency of prior art, provides a Ommaya capsule external auxiliary device, which can conveniently measure the cerebrospinal fluid pressure, extract the cerebrospinal fluid, inject the drug, and has simple structure and does not damage the capsule wall.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] An Ommaya sac external auxiliary device, comprising a three-way cock, a puncture needle, a pressure measuring pipe joint and an injection joint, the three interfaces of the three-way cock are connected with the puncture needle, the pressure measuring pipe joint and the injection joint respectively.

[0008] In order to better realize the utility model, further optimization is made in the above structure, and the fixed wing is arranged on the three-way cock.

[0009] In order to better realize the utility model, further optimization is made in the above structure, and the fixed wing is arranged on the three-way cock.

[0010] In order to better realize the utility model, further optimization is made in the above structure, and the fixed wing is arranged on the three-way cock.

[0011] In order to better realize the utility model, further optimization is made in the above structure, and the fixed wing is arranged on the three-way cock.

[0012] In order to better realize the utility model, further optimization is made in the above structure, and the fixed wing is arranged on the three-way cock.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model aims at providing a reliable device for cerebrospinal fluid pressure measurement and extraction and drug injection by external connection of a liquid storage sac, which can conveniently measure cerebrospinal fluid pressure, extract cerebrospinal fluid and inject drugs, and has simple structure and does not damage the sac wall. The device external connection of the liquid storage sac auxiliary device avoids the pain and risk caused by repeated lumbar puncture pressure measurement, and reduces the medical work burden; the device external connection of the infusion device can freely control the drug infusion speed, time and quantity. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0016] Figure 1 is one of the structure schematic diagram of the utility model Ommaya sac external auxiliary device;

[0017] Figure 2 is the second structure schematic diagram of the utility model Ommaya sac external auxiliary device;

[0018] Figure 3 Figure 3 is a structural schematic diagram of the Ommaya reservoir external auxiliary device according to the present application.

[0019] In the figure,

[0020] 1 - three-way cock, 101 - rotating handle, 2 - puncture needle, 3 - pressure measuring tube joint, 4 - injection joint, 5 - fixed wing, 6 - pressure measuring tube. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0022] In the description of the present application, it should be pointed out that, unless otherwise stated, the meaning of "multiple" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be pointed out that, unless otherwise stated and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-3 The present application provides a structure schematic diagram of Ommaya reservoir external auxiliary device, wherein, Figure 1 is the closed state of closing the puncture needle 2 channel; Figure 2 is the state when the pressure measuring tube joint 3 and the puncture needle 2 are communicated, in which state the cerebrospinal fluid pressure can be measured; Figure 3 is the state when the injection joint 4 and the puncture needle 2 are communicated, in which state the brain fluid can be extracted or the drug can be injected.

[0025] The Ommaya reservoir external auxiliary device comprises a three-way cock 1, a puncture needle 2, a pressure measuring tube joint 3 and an injection joint 4, three interfaces of the three-way cock 1 are connected with the puncture needle 2, the pressure measuring tube joint 3 and the injection joint 4 respectively, the puncture needle 2 is a non-injury needle, which can effectively avoid the damage of repeated puncture to the reservoir wall. The opening and closing of the corresponding channels on the three-way cock 1 are used to realize the separate communication of the pressure measuring tube joint 3, the injection joint 4 and the puncture needle 2, so that the cerebrospinal fluid pressure measurement, cerebrospinal fluid extraction or drug injection can be conveniently carried out. The device can conveniently measure the cerebrospinal fluid pressure, extract the cerebrospinal fluid and inject the drug when in use, and has a simple structure and does not damage the reservoir wall. Through the reservoir external auxiliary device, the pain and risk caused by repeated lumbar puncture pressure measurement are avoided, and the medical work burden is also reduced.

[0026] The Ommaya reservoir external auxiliary device further comprises a fixed wing 5 arranged on the three-way cock 1, and the fixed wing 5 is arranged to facilitate holding and fixing by using a medical adhesive tape. The fixed wing 5 can have a shape of a butterfly, a circle, an ellipse, a square or a triangle, and in the embodiment, the shape of the fixed wing 5 is an ellipse.

[0027] As shown in the figure, a rotating handle 101 with a position indicating function is arranged on the three-way cock 1, and when rotating, the corresponding channels can be connected or closed according to the indication.

[0028] The pressure measuring tube joint 3 is a universal joint, which is convenient for adjusting the connection of the pressure measuring tube 6, and a hose joint can be used for direction conversion.

[0029] Working principle:

[0030] When measuring the cerebrospinal fluid pressure, the patient lies flat on the bed with the pillow removed, the puncture needle 2 is inserted into the reservoir, the fixed wing 5 is fixed by using a medical adhesive tape, the pressure measuring tube is connected with the pressure measuring tube joint 3, and the pressure measuring tube is perpendicular to the ground. The rotating handle 101 is rotated to be in the state shown in Figure 2 , the cerebrospinal fluid flows into the pressure measuring tube 6 from the reservoir through the puncture needle 2, the three-way cock 1 and the pressure measuring tube joint 3, the reading of the pressure measuring tube 6 is read, and then the vertical height from the reservoir to the external auditory canal is added, which is the cerebrospinal fluid pressure value. Then the three-way cock 1 is closed, and the pressure measuring tube 6 is removed.

[0031] When extracting the cerebrospinal fluid or injecting the drug, the rotating handle 101 is rotated to be in the state shown in Figure 3 , the injection joint 4 and the puncture needle 2 are separately connected, and a syringe or infusion device is connected with the injection joint 4 to extract the cerebrospinal fluid or inject the drug.

[0032] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An Ommaya reservoir external access aid, characterized by: It comprises a three-way cock (1), a puncture needle (2), a pressure measuring tube joint (3) and an injection joint (4), three interfaces of the three-way cock (1) are connected with the puncture needle (2), the pressure measuring tube joint (3) and the injection joint (4) respectively. The pressure measuring tube joint (3) is a universal joint.

2. An Ommaya reservoir external auxiliary device according to claim 1, characterized in that: It also comprises a fixed wing (5) arranged on the three-way cock (1).

3. An Ommaya reservoir external auxiliary device according to claim 2, characterized in that: The fixed wing (5) is butterfly-shaped, circular or elliptical.

4. An Ommaya reservoir external auxiliary device according to claim 1, characterized in that: A rotating handle (101) with position indication function is arranged on the three-way cock (1).

5. An Ommaya reservoir external auxiliary device according to claim 1, characterized in that: The puncture needle (2) is a non-invasive needle.

Images