Portable external ventricular drainage zero point positioning device

Abstract

The utility model discloses a portable external ventricular drainage zero point positioning device which is used on a drainage tube capable of being matched with a scale plate for use, the drainage tube is provided with an outlet end and a leading-out section which are integrally connected, the drainage tube comprises a clamping seat, and the clamping seat is detachably installed on the leading-out section; the balancing part is mounted in the clamping seat; the balance state of the leading-out section is displayed through the balance piece, and the leading-out section horizontally and straightly extends to be aligned with the scale plate, so that the scale plate measures the distance between the outlet end and the leading-out section. The balance part can be installed on the clamping base, the clamping base can be detachably connected with the leading-out section of the drainage tube, measurement deviation caused by vision and operation errors is avoided, the measurement result is more accurate, the balance part and the clamping base are not affected by obstacles, operation is easy, carrying is convenient, repeated use can be achieved, and the application range is wide. The device is suitable for being popularized and used in common wards.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a portable zero-point positioning device for external ventricular drainage. Background Art

[0002] Ventricular drainage refers to the technique of placing the tip of a drainage tube with a side hole into the ventricle after ventricular puncture or during craniotomy to drain cerebrospinal fluid out of the body. The height of the drainage tube outlet is critical for maintaining normal intracranial pressure and preventing cerebrospinal fluid reflux. If the drainage tube outlet is too high, drainage will be incomplete, while if it is too low, excessive cerebrospinal fluid will be drained, posing a safety hazard to the patient. The height of the drainage tube outlet is generally 10 to 15 cm above the level of the external auditory canal on the surgical side and should be raised or lowered appropriately according to intracranial pressure to maintain normal intracranial pressure.

[0003] Existing drainage zero point positioning technologies include:

[0004] 1. Using a hose or ruler to locate the zero point is simple and easy to operate, and does not require the use of complex auxiliary tools. However, visual and operational errors in the measurement process may lead to inaccurate positioning of the ventricular drainage zero point.

[0005] 2. Using infrared zero-point positioning, this method is simple to operate, accurate in positioning, and reliable in measurement results, but it is easily affected by obstacles and has poor penetration;

[0006] 3. Use sensor zero-point positioning. This method uses sensors and monitors for zero-point calibration. It is relatively accurate and the data is objective and reasonable. However, the required equipment is expensive and the disposable consumables are expensive, making it difficult to promote and popularize its use in ordinary wards. Utility Model Content

[0007] The portable external ventricular drainage zero-point positioning device of the utility model can effectively solve the problems in the prior art of low accuracy, easy obstruction, high price and difficulty in popularization of the drainage zero-point positioning method.

[0008] According to one aspect of the present invention, a portable zero-point positioning device for external ventricular drainage is provided, which is used on a drainage tube that can be used in conjunction with a scale plate, wherein the drainage tube has an outlet end and a lead-out section that are integrally connected, comprising:

[0009] a card holder, the card holder being detachably mounted on the lead-out section; and

[0010] a balancing member, the balancing member being installed in the card holder;

[0011] The balance state of the lead-out section is displayed by the balance member, and the lead-out section extends horizontally and straightly to align with the scale plate, so that the scale plate measures the distance between the outlet end and the lead-out section.

[0012] In some embodiments, the holder is provided with a mounting groove, and the balancing member is detachably mounted in the mounting groove, thereby protecting the balancing member from being deflected and tilted by external forces.

[0013] In some embodiments, the holder is provided with a first retaining wall and a second retaining wall, the first retaining wall and the second retaining wall being disposed opposite each other on the mounting slot, and the balancing member abutting between the first retaining wall and the second retaining wall. Thus, the first retaining wall and the second retaining wall are configured to abut against the end face of the balancing member, thereby increasing the mounting strength of the balancing member.

[0014] In some embodiments, the card holder includes a first covering portion connected to the first card wall and a second covering portion connected to the second card wall, with both ends of the balancing member abutting against the first and second covering portions, respectively. Thus, the first and second covering portions can abut against the side surfaces of the balancing member, further securing the balancing member and preventing it from detaching from the card holder.

[0015] In some embodiments, the first and second covering portions protrude from the balancing member on the base, with a portion of the balancing member exposed between the first and second covering portions. Thus, when pressed by an external component, the balancing member first contacts the first and second covering portions, thereby protecting the balancing member from damage.

[0016] In some embodiments, the holder is provided with a connecting portion, the connecting portion being provided with a connecting slot, and the connecting slot being detachably connected to the lead-out section. Thus, the connecting portion is connected to the lead-out section so that the holder and the balance member are connected to the drainage tube.

[0017] In some embodiments, the connecting portion extends along the lead-out section, and in the direction of its extension, the connecting portion is larger than the first covering portion and the second covering portion. Thus, the connecting portion has an extended dimension, which can further enhance the clamping strength of the clamping base when the connecting portion is engaged with the lead-out section, and reduce the risk of tilting.

[0018] In some embodiments, the first clamping wall is provided with a first elastic member, the first elastic member being located in the installation slot, and one end of the balancing member abutting against the first elastic member. Thus, the first elastic member facilitates the installation of the balancing member, can provide abutting pressure for the balancing member, and improves the installation adaptability of the balancing member.

[0019] In some embodiments, the second engaging wall is provided with a second elastic member, which is located within the mounting groove and opposite the first elastic member. The balancing member abuts between the first and second elastic members. Thus, the second and first elastic members can jointly increase the abutting pressure on the balancing member, ensuring proper installation of the balancing member even when the first elastic member is damaged or lacks sufficient elasticity, thereby extending the service life of the engaging base.

[0020] In some embodiments, a straight rod is further included. The straight rod abuts the lead-out section to maintain its straight shape. The straight rod is aligned with the scale plate to measure the distance between the outlet end and the lead-out section. Thus, the straight rod facilitates the extension of the lead-out section and aligns with the scale plate, adapting to the shape of the lead-out section and improving measurement accuracy.

[0021] Compared with the prior art, the portable zero-point positioning device for external ventricular drainage of the present invention has the following beneficial effects:

[0022] The balancing piece of the present application can be installed on the holder, and the holder can be detachably connected to the lead-out section of the drainage tube, so that the balancing piece can display the balance state of the lead-out section, which is convenient for aligning the lead-out section with the scale plate. When the lead-out section is in a balanced state, the distance between the lead-out section and the outlet end can be measured by the scale plate, that is, the height at which the drainage tube outlet is placed can be measured, avoiding measurement deviations caused by visual and operational errors. The measurement results are more accurate, and the balancing piece and the holder are not affected by obstacles. They are simple to operate, easy to carry, and can be reused. They are suitable for promotion and popularization in ordinary wards. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a reference diagram for the use of the portable external ventricular drainage zero-point positioning device of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the portable zero-point positioning device for external ventricular drainage of the present invention;

[0025] Figure 3 This is a structural breakdown diagram of the portable external ventricular drainage zero-point positioning device of the utility model;

[0026] Figure 4 This is a schematic diagram of another embodiment of the card holder in the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of the middle booth from another angle.

[0028] In the figure: 1-balancing member, 2-base, 21-mounting slot, 22-first card wall, 23-second card wall, 24-first covering part, 25-second covering part, 26-connecting part, 27-connecting slot, 31-first elastic member, 32-second elastic member, 4-extraventricular drainage instrument panel, 5-fluid bag, 6-drainage tube, 6a-outlet end, 6b-lead-out section. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0031] like Figure 1 As shown, the utility model relates to a portable extracerebral ventricular drainage zero point positioning device, which is suitable for the extracerebral ventricular drainage tube 6 circuit and can be used in conjunction with the extracerebral ventricular drainage instrument panel 4 and the drainage tube 6. The extracerebral ventricular drainage instrument panel 4 has a scale plate for displaying the measured value. The output part of the drainage tube 6 can be installed on the extracerebral ventricular drainage instrument panel 4. The drainage tube 6 is led out from the patient's ventricle and led out to the extracerebral ventricular drainage instrument panel 4. One end of the drainage tube 6 on the extracerebral ventricular drainage instrument panel 4 is the outlet end 6a (i.e., the outlet of the drainage tube 6). When the patient is in a supine position, the drainage tube 6 is in the horizontal plane S of the external auditory canal on the surgical side as the drainage zero point (starting point), and the distance between it and the outlet end 6a in the vertical (gravity) direction is the height H at which the outlet of the drainage tube 6 is placed. Drainage tube 6 also has an outlet section 6b integrally connected to outlet end 6a. This section extends from the horizontal plane S of the surgical-side external auditory canal. Generally speaking, outlet section 6b is parallel to the ground. As can be seen, the vertical distance between outlet section 6b and outlet end 6a is also the height H of the outlet of drainage tube 6. Furthermore, a fluid bag 5 is connected to the distal end of drainage tube 6 to store fluid drained from the ventricles.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Figure 1 The portable external ventricular drainage zero point positioning device according to one embodiment of the present invention is schematically shown. Figure 2 As shown, the portable external ventricular drainage zero-point positioning device includes a holder 2 and a balance member 1.

[0034] The balancing member 1 is detachably mounted in the holder 2 and primarily serves to indicate the balance status of the lead-out section 6b. Preferably, the balancing member 1 is a level; alternatively, the balancing member 1 can be a spirit level or an electronic digital level that is convenient to install and carry and displays the balance (level) status of the mounted object. The level is low in cost, has a long service life, and is easily replaceable, thus facilitating widespread use.

[0035] like Figure 2 As shown, the main body of the card holder 2 adopts a cylindrical structure, and the overall shape is small. It can be placed on the hand, which is convenient for carrying and changing positions. The card holder 2 is detachably mounted on the lead-out section 6b, specifically by a snap-on method. The card holder 2 has a mounting groove 21, a first card wall 22, a second card wall 23 and a connecting pipe portion 26. The mounting groove 21 adopts a groove structure, which extends along the axial direction of the card holder 2. In this embodiment, the axial direction of the card holder 2 is parallel to the extension direction of the lead-out section 6b. The mounting groove 21 enables the card holder 2 to form an exposed opening structure. In this embodiment, the balance member 1 is detachably mounted in the mounting groove 21 by a snap-on method, so that most of the volume of the balance member 1 can be accommodated in the mounting groove 21, which is beneficial to protecting and fixing the balance member 1. Part of the side surface of the balance member 1 is exposed on the card holder 2 for displaying the numerical value or balance state. The first card wall 22 and the second card wall 23 are arranged opposite to each other on the card base 2. The two are designed to be integrated with the card base 2. The installation groove 21 is located between the first card wall 22 and the second card wall 23. The first card wall 22 and the second card wall 23 adopt a circular end face structure. When the balancing member 1 is clamped in the installation groove 21, the two end faces of the balancing member 1 respectively abut against the first card wall 22 and the second card wall 23 to further tighten the balancing member 1, which can improve the installation strength of the balancing member 1 on the card base 2.

[0036] Further, such as Figure 3As shown, the first card wall 22 is connected to the first covering portion 24, and the second card wall 23 is connected to the second covering portion 25. The first covering portion 24 and the second covering portion 25 are designed to be integrally formed with the card base 2. The first covering portion 24 and the second covering portion 25 are closer to the center of the installation groove 21 than the first card wall 22 and the second card wall 23. It can be understood that the first covering portion 24 and the second covering portion 25 are structures of part of the side of the card base 2 main body. When the balance member 1 is clamped in the installation groove 21, the first covering portion 24 and the second covering portion 25 can be The side surfaces of the balancing member 1 are abutted, and the first covering portion 24 and the second covering portion 25 protrude from the balancing member 1 on the base 2. Therefore, the first covering portion 24 and the second covering portion 25 have a wrapping effect on the balancing member 1 to further improve the installation strength of the balancing member 1 and prevent the balancing member 1 from falling off or shifting the position of the balancing member 1 due to external force. In addition, the first covering portion 24 and the second covering portion 25 are also used to protect the balancing member 1. When the surface of the external component is pressed down, it can first contact the first covering portion 24 and the second covering portion 25 to prevent the balancing member 1 from being damaged.

[0037] like Figure 3 As shown, the connecting pipe portion 26 is used for detachable connection with the lead-out section 6b, specifically by a snap-on connection. The connecting pipe portion 26 adopts a tubular structure and is provided with a connecting pipe groove 27. The connecting pipe groove 27 adopts a groove structure. The connecting pipe groove 27 forms an opening structure for the connecting pipe portion 26. The connecting pipe groove 27 can be snapped with the lead-out section 6b, so that the card holder 2 can be snapped onto the lead-out section 6b. The connecting pipe portion 26 can be integrally formed on the card holder 2 and is made of the same material as the card holder 2. The connecting pipe portion 26 can be made of plastic and has a certain deformation ability. The connecting pipe portion 26 can extend along the lead-out section 6b, so the connecting pipe portion 26 has a size in the extension direction (horizontal direction). In the extension direction, the size of the connecting pipe portion 26 in the extension direction is larger than the size of the first covering portion 24 and the second covering portion 25. It can be seen that the extension size of the connecting pipe portion 26 is conducive to a more balanced snap-on connection with the lead-out section 6b, so that the balancing member 1 is not prone to skew. In this embodiment, the connecting pipe portion 26 is arranged at the bottom of the installation groove 21 so as to conform to the main body of the supporting base 2 and the card lead-out section 6b. In other embodiments, the connecting pipe portion 26 can also be arranged on both sides of the outside of the installation groove 21 to facilitate the installation and observation of the balance member 1.

[0038] When using, such as Figure 1As shown, the drainage tube 6 is installed on the extraventricular drainage instrument panel 4, and the initial end of the drainage tube 6 is led out from the patient's ventricle. The end of the drainage tube 6 is connected to the effusion bag 5, and then the balance piece 1 is clamped on the holder 2, and the holder 2 together with the balance piece 1 is clamped on the lead-out section 6b of the drainage tube 6. At this time, the medical staff can manually straighten the lead-out section 6b and extend the two ends of the lead-out section 6b horizontally and straight to align with the horizontal plane S of the extraventricular drainage instrument panel 4 and the surgical side external auditory canal, and observe through the balance piece 1 to make the lead-out section 6b remain parallel to the horizontal ground. At this time, the lead-out section 6b is the drainage zero point, and in the vertical direction, the distance between the lead-out section 6b and the outlet end 6a (the minimum distance between the lead-out section 6b and the outlet end 6a) is the height H of the drainage tube 6 outlet, which can be directly measured by the value on the extraventricular drainage instrument panel 4.

[0039] In some embodiments, the lead-out section 6b of the drainage tube 6 adopts a hard straight tube structure, which is not bent by external force, and its interior can maintain normal drainage to the outlet end 6a and the fluid bag 5. When in use, the holder 2 and the balance member 1 are clamped on the lead-out section 6b. Medical staff do not need to straighten the lead-out section 6b and can directly align it with the external ventricular drainage instrument panel 4 and the horizontal plane S of the external auditory canal on the surgical side, and observe through the balance member 1 to maintain the balance state of the lead-out section 6b. Therefore, when measuring the height H of the drainage tube 6 outlet, it can be more efficient and quick, and the measurement result is more accurate.

[0040] In some embodiments, the portable external ventricular drainage zero point positioning device also includes a straight rod, which can be abutted against the lead-out section 6b. For example, the straight rod is provided with a structure similar to the connecting pipe portion 26, or other simple snap-on structures, so as to be snapped with the lead-out section 6b. Alternatively, after the straight rod is aligned and abutted against the lead-out section 6b, the lead-out section 6b can be clamped on the straight rod by a clip. When in use, the two ends of the straight rod can be directly aligned with the external ventricular drainage instrument panel 4 and the horizontal plane S of the external auditory canal on the surgical side. Therefore, the straight structure of the straight rod can be used to extend the lead-out section 6b horizontally and straight and align it with the external ventricular drainage instrument panel 4. Finally, the required distance can be measured. There are no other requirements for the structure of the drainage tube 6 itself, which meets most applicable situations.

[0041] In some embodiments, as Figure 4 、 Figure 5As shown, a first elastic member 31 is provided in the mounting groove 21, and the first elastic member 31 is specifically arranged on the first card wall 22. The first elastic member 31 is preferably a spring structure. Optionally, a structure that can provide elastic force, such as a spring, can also be used. During the process of installing the balancing member 1 into the mounting groove 21, the first elastic member 31 abuts against the end face of the balancing member 1, which is beneficial to improving the installation strength of the balancing member 1 in the mounting groove 21, and improving the adaptability of the balancing member 1 and the card seat 2, reducing the accuracy requirement for the mounting groove 21. Even if the size of the balancing member 1 is slightly smaller than the size of the mounting groove 21, the elastic force of the first elastic member 31 can apply the necessary pressure to the balancing member 1 through the abutment of the first elastic member 31 against the balancing member 1. In addition, the cooperation between the balancing member 1 and the first covering portion 24 and the second covering portion 25 can effectively improve the fixing performance of the balancing member 1; in other embodiments, the end of the first elastic member 31 is also provided with a sloped structure to facilitate the balancing member 1 to be tilted and pressed into the mounting groove 21. Furthermore, a second elastic member 32 is provided on the second card wall 23. The second elastic member 32 has the same structure as the first elastic member 31 and is arranged in a mirror-symmetrical manner. Therefore, structures for elastic abutment of the balance member 1 are provided at both ends of the installation groove 21. The second elastic member 32 and the first elastic member 31 can simultaneously provide pressure when installing the balance member 1. When the first elastic member 31 is damaged or the elastic force is insufficient, the second elastic member 32 can continue to abut against the balance member 1 to increase the service life of the card holder 2.

[0042] The above description is only a preferred embodiment of the present invention. To keep the description concise, not all possible combinations of the various technical features in the above embodiment are described. This does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A portable zero-point positioning device for external ventricular drainage, used on a drainage tube that can be used in conjunction with a scale plate, wherein the drainage tube has an outlet end and a lead-out section that are integrally connected, characterized in that: include: A card holder, the card holder being detachably mounted on the lead-out section; as well as a balancing member, the balancing member being installed in the card holder; The balance state of the lead-out section is displayed by the balance member, and the lead-out section extends horizontally and straightly to align with the scale plate, so that the scale plate measures the distance between the outlet end and the lead-out section.

2. The portable external ventricular drainage zero-point positioning device according to claim 1, characterized in that: The card holder is provided with a mounting groove, and the balancing piece is detachably mounted in the mounting groove.

3. The portable external ventricular drainage zero point positioning device according to claim 2, characterized in that: The card seat is provided with a first card wall and a second card wall, the first card wall and the second card wall are arranged opposite to each other on the installation groove, and the balance member abuts between the first card wall and the second card wall.

4. The portable external ventricular drainage zero point positioning device according to claim 3, characterized in that: The card seat is provided with a first covering portion connected to the first card wall, and a second covering portion connected to the second card wall. Both ends of the balance member are respectively in contact with the first covering portion and the second covering portion.

5. The portable external ventricular drainage zero point positioning device according to claim 4, characterized in that: The first covering portion and the second covering portion protrude from the balancing member on the card holder, and a portion of the balancing member is exposed between the first covering portion and the second covering portion.

6. The portable external ventricular drainage zero-point positioning device according to claim 4, characterized in that: The holder is provided with a connecting portion, the connecting portion is provided with a connecting slot, and the connecting slot is detachably connected to the lead-out section.

7. The portable external ventricular drainage zero-point positioning device according to claim 6, characterized in that: The connecting portion extends along the lead-out section. In an extending direction of the connecting portion, a size of the connecting portion is larger than sizes of the first covering portion and the second covering portion.

8. The portable external ventricular drainage zero-point positioning device according to claim 3, characterized in that: The first clamping wall is provided with a first elastic member, the first elastic member is located in the installation groove, and one end of the balancing member is in contact with the first elastic member.

9. The portable external ventricular drainage zero-point positioning device according to claim 8, characterized in that: The second clamping wall is provided with a second elastic member, the second elastic member is located in the installation groove and is arranged opposite to the first elastic member, and the balancing member is abutted between the first elastic member and the second elastic member.

10. The portable zero-point positioning device for external ventricular drainage according to claim 1, characterized in that: The device further comprises a straight rod, wherein the straight rod abuts against the lead-out section to maintain a straight shape of the lead-out section, and the straight rod is aligned with the scale plate to measure the distance between the outlet end and the lead-out section.

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