Lumbar cistern drainage device capable of positioning drainage tube position in spinal canal

Abstract

A lumbar cistern drainage device capable of positioning the position of a drainage tube in a spinal canal is characterized by comprising a drainage assembly, a detection assembly and a collection assembly, the first end of the drainage assembly is connected with the detection assembly, and the second end of the drainage assembly is connected with the collection assembly. Through the arrangement of the detection assembly comprising the magnetic ball and the magnetic detector, in the process of placing the drainage tube into the spinal canal, the magnetic detector is used for detecting the reaction of the magnetic ball in vitro and displaying the magnetic field intensity, so that the in-vivo placing depth and position of the first end of the drainage tube are detected in real time, and the drainage tube is ensured to reach the preset placing depth; the drainage tube can be inserted into the spinal canal, slipping caused by insufficient insertion length is prevented, folding and twisting of the drainage tube in the spinal canal are reduced, tube insertion failure and unsmooth drainage are reduced, intraoperative complications are effectively avoided, the examination cost is reduced, and meanwhile the risk of postoperative CT image examination or drainage tube insertion again can be reduced.

Description

Technical Field

[0001] The utility model relates to daily necessities for human beings, in particular to medical instruments, in particular to a lumbar cistern drainage device capable of locating the position of a drainage tube in a spinal canal. Background Art

[0002] Lumbar drainage is a method and approach to drain cerebrospinal fluid through the lumbar spine. One end of a thin drainage tube is inserted into the lumbar cistern, and the other end continuously drains the cerebrospinal fluid to the outside of the body. It is often used in diseases such as intracranial infection, cerebral hemorrhage, and subarachnoid hemorrhage. It can effectively reduce hydrocephalus and lower intracranial pressure, and has the characteristics of less trauma and fewer side effects.

[0003] The spinal canal is a tube formed by the conical holes of all the vertebrae in the human body that accommodates the spinal cord and its membranes and other structures. When a drainage tube is inserted into the patient through the spinal canal, the insertion process is usually "blind insertion". Since the drainage tube is relatively thin and the drainage path is long, it is very easy for the drainage tube to be folded or twisted inside the spinal canal. It is impossible to know the specific situation inside the spinal canal and the arrival position of the drainage tube, which can cause poor drainage of the drainage tube, or insufficient insertion length leading to final slippage.

[0004] In the prior art, after lumbar drainage surgery, CT imaging is required to determine the position of the lumbar drainage tube in the spinal canal, which increases the number and cost of radiological examinations. Summary of the invention

[0005] The utility model aims to provide a lumbar drainage device capable of locating the position of a drainage tube in the spinal canal. The lumbar drainage device capable of locating the position of a drainage tube in the spinal canal solves the technical problem that the position of the drainage tube in the spinal canal cannot be known in the prior art.

[0006] The utility model discloses a lumbar cistern drainage device capable of locating the position of a drainage tube in the spinal canal. The device is characterized in that the device comprises a drainage component, a detection component and a collection component. The first end of the drainage component is connected to the detection component, and the second end of the drainage component is connected to the collection component.

[0007] Furthermore, the detection component includes a magnetic ball and a magnetic tester for detecting the magnetic ball, and the magnetic ball is installed at the first end of the drainage component.

[0008] Furthermore, the drainage component includes a drainage tube, a first connector and a catheter. A side hole is provided on the side wall of the first end of the drainage component, and the second end of the drainage tube is connected to the first end of the catheter through the first connector.

[0009] Furthermore, the first end of the drainage tube is connected to a receiving member, and the magnetic ball is arranged in the receiving member.

[0010] Furthermore, a flow regulating valve is provided on the conduit.

[0011] Furthermore, the collecting assembly includes a collector and a drainage bag, the upper end of the collector is connected to the second end of the catheter, and the lower end of the collector is connected to the drainage bag via a second connector.

[0012] Compared with the prior art, the utility model has a positive and obvious effect. The utility model is provided with a detection component including a magnetic ball and a magnetic detector. During the process of inserting the drainage tube into the spinal canal, the magnetic ball reaction is detected in vitro by using the magnetic detector and the magnetic field strength is displayed, thereby detecting the insertion depth and position of the first end of the drainage tube in the body in real time, ensuring that the drainage tube reaches the preset insertion depth, preventing slippage due to insufficient insertion length, reducing the bending and twisting of the drainage tube in the spinal canal, reducing the occurrence of tube insertion failure and poor drainage, effectively avoiding intraoperative complications, reducing inspection costs, and also reducing the risk of postoperative CT imaging examination or re-insertion of the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of a lumbar drainage device capable of locating the position of an intraspinal drainage tube.

[0014] Figure 2 The utility model is a schematic diagram of a drainage tube in a lumbar cistern drainage device capable of locating the position of an intraspinal drainage tube.

[0015] Figure 3 The utility model is an exploded schematic diagram of a drainage tube and a magnetic ball in a lumbar cistern drainage device capable of locating the position of an intraspinal drainage tube.

[0016] Figure 4 The utility model is a schematic diagram of a lumbar drainage device capable of locating the position of an intraspinal drainage tube in use.

[0017] Figure 5 The utility model is a schematic diagram of the use state of a detection component of a lumbar drainage device capable of locating the position of an intraspinal drainage tube.

[0018] Markings in the figure: 1. drainage assembly; 11. drainage tube; 12. first connector; 13. catheter; 2. detection assembly; 21. magnetic ball; 22. magnetic detector; 3. collection assembly; 31. collector; 32. drainage bag; 321. short tube; 322. capacity line; 4. container; 41. containing cavity; 42. hollow tube; 6. support frame; 61. mounting plate; 611. opening clamp; 62. mounting ring. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with an embodiment, but the present invention is not limited to the embodiment. Any similar structure and similar changes of the present invention should be included in the protection scope of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and is not a limitation on the technical solution of the present invention.

[0020] Reference Figure 1-Figure 5 The utility model provides a lumbar drainage device capable of locating the position of a drainage tube in the spinal canal, comprising a drainage component 1, a detection component 2 and a collection component 3, wherein the first end of the drainage component 1 is connected to the detection component 2, and the second end of the drainage component 1 is connected to the collection component 3.

[0021] like Figure 1 As shown, the drainage assembly 1 includes a drainage tube 11, a first connector 12 and a catheter 13. The first end of the drainage tube 11 is a free end. The second end of the drainage tube 11 is connected to the first end of the catheter 13 through the first connector 12. The drainage tube 11 and the catheter 13 are made of medical plastics, such as PVC, PE, etc. The first connector 12 adopts a three-way tube commonly used in medical treatment. Specifically: the length of the drainage tube 11 is about 900 mm, and its inner diameter and outer diameter are 0.76 mm and 1.6 mm respectively. Depth marks (not shown in the figure) are arranged at intervals on the body of the drainage tube 11. The depth marks are 110 mm, 160 mm, 210 mm, and 260 mm away from the first end of the drainage tube 11, respectively. A plurality of side holes (not shown in the figure) are opened on the side wall of the first end of the drainage tube 11. In this embodiment, the number of the side holes is 3, and cerebrospinal fluid is drained to the body of the body through the side holes.

[0022] In order to facilitate the real-time positioning of the specific position of the first end of the drainage tube 11 extending into the spinal canal during the catheter placement process, the utility model achieves this purpose by adding a detection component 2. Specifically, the detection component 2 includes a magnetic ball 21 and a magnetic tester 22. The magnetic ball 21 is a sphere, and its diameter is smaller than the inner diameter of the drainage tube 11. The magnetic ball 21 is installed at the free end of the drainage tube 11 and enters the human body with the drainage tube 11. The magnetic tester 22 cooperates to detect the real-time position of the magnetic ball 21 in the spinal canal in vitro, so as to know the position of the first end of the drainage tube 11. In this embodiment, the magnetic tester 22 adopts the existing technology, which is a common handheld digital display Gauss meter, and no improvement is made to it. The magnetic tester 22 is only used to detect the position of the magnetic ball 21 in the body, so as to judge the insertion depth of the second end of the drainage tube 11 in the spinal canal.

[0023] In this embodiment, the magnetic ball 21 is connected to the first end of the drainage tube 11 through the receiving member 4. Figure 2 and Figure 3As shown, the container 4 is made of the same material as the drainage tube 11, the front end of the container 4 is a containing cavity 41, and the rear end is a hollow tube 42, the hollow tube 42 and the containing cavity 41 are integrally formed, and the outer diameters of the containing cavity 41 and the hollow tube 42 are both less than or equal to the inner diameter of the drainage tube 11, and at the same time, the diameter of the magnetic ball 21 is smaller than the inner diameter of the containing cavity 41, the magnetic ball 21 enters the containing cavity 41 through the hollow tube 42 and is fixed in the containing cavity 41 (can be bonded by medical glue), the hollow tube 42 is inserted into the first end of the drainage tube 11, or the hollow tube 42 is bonded and fixed to the drainage tube 11 by medical glue, to ensure that the two are sealed and firmly connected.

[0024] Furthermore, a flow regulating valve (not shown) is provided on the body of the catheter 13. The flow regulating valve can adopt a flow regulator in the prior art (such as a switch used to adjust the flow size during infusion), and the flow rate of cerebrospinal fluid drainage is controlled by the flow regulating valve.

[0025] like Figure 1 , Figure 4 As shown, the collecting assembly 3 includes a collector 31 and a drainage bag 32, the upper end of the collector 31 is connected to the second end of the catheter 13, and the lower end of the collector 31 is connected to the drainage bag 11 through a second connector; preferably, both the collector 31 and the drainage bag 11 can be connected to the support frame 6, the upper end of the support frame 6 is provided with a mounting plate 61 and a mounting ring 62, the mounting ring 62 is fixedly connected to the mounting plate 61, the side of the mounting plate 61 is connected to an open clamping piece 611 for fixing the catheter 13, and the mounting plate 61 is provided with a scale line (not shown in the figure) for measuring the liquid capacity in the collector 31; the drainage bag 32 is hung on the bottom of the mounting plate 61, and a short tube 321 is connected to the upper inlet of the drainage bag 32, and the short tube 321 is connected to the collector 31 through the second connector, and the surface of the drainage bag 32 is printed with a capacity line, and the amount of drainage fluid can be calculated at any time through the scale line and the capacity line.

[0026] The utility model discloses a lumbar cistern drainage device capable of locating the position of a drainage tube in the spinal canal. When in use:

[0027] The patient lies on the right side with the head bent forward and the hands on the knees. The doctor disinfects and spreads a drape on the patient's lumbar cistern (usually the 3rd-4th lumbar intervertebral space). After local infiltration anesthesia, the puncture needle is inserted vertically into the skin with the needle tip facing upward. If there is bone obstruction, the puncture direction can be adjusted by slightly tilting it toward the head.

[0028] When the resistance suddenly decreases after the puncture needle is inserted for about 6 cm, it means that the needle tip has entered the subarachnoid space. At this time, the needle tip is pulled out and cerebrospinal fluid can be seen flowing out. At this time, the puncture needle is rotated so that the bevel of the needle tip faces the head, and the drainage tube 11 is inserted through the needle tube. At this time, the puncture needle is pulled out while the drainage tube 11 is inserted. In the process of the drainage tube 11 gradually penetrating the patient's spinal canal, the doctor uses the magnetic tester 22 to detect the position of the magnetic ball 21 in real time, so as to determine the position of the first end of the drainage tube 11 in the patient's body, and to assist in determining whether the drainage tube 11 has been inserted to a predetermined depth.

[0029] When the drainage tube 11 has been completely inserted into the body to a predetermined depth, the first connector 12 and the catheter 13 are connected to the second end of the drainage tube 11, the catheter 13 is clamped on the opening clamp 611, and the second end of the catheter 13 is connected to the collector 31 to continuously drain cerebrospinal fluid into the drainage bag 32.

[0030] The height of the drainage bag 32 is adaptively adjusted according to the daily drainage volume required clinically.

[0031] Specifically, the magnetic ball 21, magnetic detector 22, collector 31, drainage bag 32, etc. in this embodiment all adopt well-known solutions in the prior art, which are well known to those skilled in the art and will not be described in detail here.

Claims

1. A lumbar drainage device capable of locating the position of a drainage tube in the spinal canal, characterized in that: It comprises a drainage component (1), a detection component (2) and a collection component (3), wherein a first end of the drainage component (1) is connected to the detection component (2), and a second end of the drainage component (1) is connected to the collection component (3); The detection component (2) comprises a magnetic ball (21) and a magnetic tester (22) for detecting the magnetic ball (21); the magnetic ball (21) is mounted on the first end of the drainage component (1); The drainage assembly (1) comprises a drainage tube (11), a first connector (12) and a catheter (13); a side hole is provided on a side wall of the first end of the drainage assembly (1); and the second end of the drainage tube (11) is connected to the first end of the catheter (13) via the first connector (12); The first end of the drainage tube (11) is connected to a receiving piece (4), and the magnetic ball (21) is arranged in the receiving piece (4).

2. A lumbar drainage device capable of locating the position of an intraspinal drainage tube according to claim 1, characterized in that: A flow regulating valve is provided on the conduit (13).

3. A lumbar drainage device capable of locating the position of an intraspinal drainage tube according to claim 1, characterized in that: The collecting assembly (3) comprises a collector (31) and a drainage bag (32); the upper end of the collector (31) is connected to the second end of the catheter (13); and the lower end of the collector (31) is connected to the drainage bag (32) via a second connector.

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