Positioning plate
By designing a positioning plate containing puncture positioning holes, stimulator positioning holes and notch grooves, the problem of difficult to determine the implant position of the tibial nerve stimulator is solved, and more accurate implantation and more stable therapeutic effects are achieved.
Patent Information
- Application Number
- CN202421556102.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the existing tibial nerve stimulator implantation technology, it is difficult to determine the implant location, it is easily affected by the subjective experience of the doctor, and the computer transmission stability between the external power supply device and the stimulator is difficult to ensure.
A positioning plate is designed, including a puncture positioning hole, a stimulator positioning hole and a notch groove. It matches the ankle bone of the human body through the notch groove to determine the position of the hole on the positioning plate, assisting in determining the rough position of the tibial nerve, and thus helping to accurately implant the tibial nerve stimulator.
It reduces the difficulty of positioning the tibial nerve stimulator, reduces the impact of doctors' subjective factors on the treatment effect, and improves the accuracy and stability of neuroregulatory treatment.
Smart Images
Figure CN223026542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tibial nerve stimulator implantation, in particular to a positioning plate. Background Art
[0002] Neuromodulation is a new treatment method that treats various diseases caused by abnormal nerve signals by stimulating nerves with electric current to block the propagation of abnormal nerve signals, such as chronic postoperative pain, Parkinson's disease, epilepsy, lower urinary tract dysfunction diseases, etc.
[0003] For lower urinary tract dysfunction diseases (such as overactive bladder, urge incontinence, interstitial cystitis, neurogenic bladder, and non-obstructive urinary retention, etc.), the existing technology usually uses a nerve stimulator to apply an electrical stimulation pulse to the sacral nerve for regulation or conducts upward to the sacral nerve through the tibial nerve branch on the sole of the foot, so as to regulate the behavior of the sacral nerve innervated effector organs such as the bladder, urethral sphincter, and pelvic floor, playing the role of "neuromodulation". There is a kind of miniaturized implantable stimulator that can achieve minimally invasive implantation, mainly by puncturing the stimulator into the position of the target tibial nerve. The implantation position of the nerve stimulator has a great influence on the treatment effect. In the existing technology, the position is usually selected and implanted relying on the subjective experience of the doctor, and it is easily affected by the personal factors of the doctor and thus affects the treatment effect. In addition, since the stimulator needs external power supply and has a small volume, if the implantation position deviates greatly from the expected position, it is difficult to ensure the stability of the computer transmission between the external power supply device and the stimulator. Summary of the Utility Model
[0004] Based on the problem that it is difficult to determine the implantation position of the existing tibial nerve stimulator, it is necessary to provide a positioning plate.
[0005] The positioning plate is used to assist the implantation of the tibial nerve stimulator into the human body and has:
[0006] Puncture positioning holes;
[0007] Stimulator positioning holes, the stimulator positioning holes are arranged at intervals along a first direction from the puncture positioning holes; and
[0008] Notch grooves, the notch grooves are arranged on the side of the stimulator positioning holes away from the puncture positioning holes deviating from the first direction, and the notch grooves are used for clamping the ankle bones of the human body.
[0009] With such a setting, the positions of the puncture positioning holes and the stimulator positioning holes on the positioning plate are determined by positioning the notch grooves to the ankle bones of the human body, which facilitates the user to determine the approximate position of the tibial nerve, thereby further assisting the user to transport the tibial nerve stimulator from the puncture hole to the accurate position of the tibial nerve application, reducing the difficulty of positioning the tibial nerve stimulator, and avoiding the influence of the subjective factors of the doctor on the treatment effect of neuromodulation.
[0010] In one embodiment, in order to fit the shin of a human body, the positioning plate includes:
[0011] an indicating portion, the indicating portion extending along the first direction and having the puncture positioning hole and the stimulator positioning hole; and
[0012] A reference portion extends from one end of the indicating portion close to the stimulator positioning hole along a second direction perpendicular to the first direction, and the notch groove is located on a side of the reference portion away from the puncture positioning hole along the first direction.
[0013] Such a setting is conducive to saving production costs, and in actual use, the indicator part is attached to the tibia side of the human body, and the reference part is attached to the ankle side of the human body, which is consistent with the shape of the human tibia, which is conducive to saving production costs. In addition, with the bottom of the notch groove as the starting point and extending along the second direction as the reference line, the positioning of the puncture positioning hole and the stimulator positioning hole is more accurate, and the position of the puncture positioning hole and the stimulator positioning hole will not be offset along the second direction due to the size difference of the human ankle.
[0014] In one embodiment, in order to facilitate adaptation to the shape of the ankle bone of the human body, the notch groove is in a semicircular arc shape.
[0015] With such arrangement, the notch groove closely matches the ankle bone of the human body, making positioning easier.
[0016] In one embodiment, the positioning plate further includes a scale portion located on a side of the indicating portion away from the reference portion along the second direction, and the scale portion extends along the first direction.
[0017] Such a setting facilitates the quantification of the movement distance of the tibial nerve stimulator and provides a specific reference for the position of the tibial nerve stimulator, making it easier for doctors to obtain more accurate tibial nerve position data, which is beneficial to improving the level of nerve regulation treatment.
[0018] In one embodiment, the distance between the side of the puncture positioning hole away from the stimulator positioning hole and the bottom of the notch groove along the first direction is greater than or equal to 80 mm and less than or equal to 120 mm.
[0019] Such a setting will improve the standardization of the process of neurological treatment surgery and help improve the consistency of doctors' coordination during surgery.
[0020] In one embodiment, the puncture positioning hole is a waist-shaped hole extending along the first direction, and the length of the puncture positioning hole is greater than or equal to 2 mm and less than or equal to 8 mm.
[0021] With such a setting, an operating space for puncture is reserved for the doctor, that is, the operating surface of the puncture operation is increased, which is beneficial to increasing the error tolerance rate of the puncture operation.
[0022] In one embodiment, the stimulator positioning hole is an elongated hole extending along the first direction, and the distance between the side of the stimulator positioning hole away from the puncture positioning hole and the bottom of the notch groove along the first direction ranges from greater than or equal to 10 mm to less than or equal to 50 mm.
[0023] With such a setting, the position range of the stimulator positioning hole is standardized, which can reduce the influence of the doctor's personal experience deviation on the stimulator positioning.
[0024] In one embodiment, the length range of the stimulator positioning hole along the first direction is greater than or equal to 15 mm and less than or equal to 45 mm, and the width range of the stimulator positioning hole along the second direction is greater than or equal to 2 mm and less than or equal to 8 mm.
[0025] With such a setting, it is convenient for the doctor to determine the optimal installation position of the stimulator, providing an operating space for the doctor to determine the position of the tibial nerve of different patients.
[0026] In one embodiment, the distance between the side of the stimulator positioning hole close to the puncture positioning hole and the bottom of the notch groove along the first direction ranges from greater than or equal to 40 mm to less than or equal to 80 mm.
[0027] With such a setting, the stimulator positioning hole and the puncture positioning hole can be spaced at least 12 mm apart, ensuring that the stimulator will not easily slip out of the puncture positioning hole after being installed at the preset position.
[0028] In one embodiment, the length range of the positioning plate is greater than or equal to 110 mm and less than or equal to 150 mm; and / or
[0029] The width range of the positioning plate is greater than or equal to 40 mm and less than or equal to 80 mm.
[0030] With such a setting, it is convenient for the doctor to hold the positioning plate with one hand, the operation is simple, the space occupation is small, and the storage is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 is a schematic structural diagram of a positioning plate in an embodiment provided by the present utility model;
[0032] Figure 2 is Figure 1 a schematic structural diagram of the back surface of the shown positioning plate.
[0033] Reference numerals:
[0034] 101, Puncture positioning hole; 102, Stimulator positioning hole; 103, Notch groove; 104, Chamfer; 105, Reference line; 10, Indicator part; 20, Reference part; 30, Scale part. Detailed implementation mode
[0035] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation mode of the present utility model in conjunction with the accompanying drawings. Many specific details are elaborated in the following description to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0038] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0039] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.
[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.
[0041] Neuromodulation is a new treatment method that treats various diseases caused by abnormal nerve signals by stimulating nerves with electric current to block the propagation of abnormal nerve signals, such as chronic postoperative pain, Parkinson's disease, epilepsy, lower urinary tract dysfunction diseases, etc.
[0042] For lower urinary tract dysfunction diseases (such as overactive bladder, urge incontinence, interstitial cystitis, neurogenic bladder, and non-obstructive urinary retention, etc.), the prior art usually uses a nerve stimulator to apply an electrical stimulation pulse to the sacral nerve for regulation or conducts upward through the tibial nerve branch on the sole of the foot to the sacral nerve, so as to regulate the behavior of the sacral nerve innervated effector organs such as the bladder, urethral sphincter, and pelvic floor, playing the role of "neuromodulation". There is currently a miniaturized implantable stimulator that can achieve minimally invasive implantation, mainly by puncturing the stimulator into the position of the target tibial nerve. The implantation position of the nerve stimulator has a greater impact on the treatment effect. In the prior art, the position is usually selected and implanted relying on the subjective experience of the doctor, and it is easily affected by the personal factors of the doctor and thus affects the treatment effect. In addition, since the stimulator requires external power supply and has a small volume, if the implantation position deviates greatly from the expected position, it is difficult to ensure the stability of the computer transmission between the external power supply device and the stimulator.
[0043] Based on this, it is necessary to provide a positioning plate that can conveniently determine the implantation position of the tibial nerve stimulator and the position of the puncture hole.
[0044] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic structural diagram of the positioning plate in an embodiment of the present utility model.Figure 2 for Figure 1 The schematic diagram of the back structure of the positioning plate shown. The positioning plate has a puncture positioning hole 101, a stimulator positioning hole 102 and a notch 103. The puncture positioning hole 101 and the stimulator positioning hole 102 are arranged at intervals along a first direction, and the notch 103 is arranged at a side of the stimulator positioning hole 102 away from the puncture positioning hole 101 and is used to clamp the ankle bone of the human body. The positions of the puncture positioning hole 101 and the stimulator positioning hole 102 on the positioning plate are determined by positioning the notch 103 to the ankle bone of the human body, which facilitates the user to determine the rough position of the tibial nerve, thereby further assisting the user to transport the tibial nerve stimulator from the puncture hole to the accurate position of the tibial nerve, reducing the difficulty of positioning the tibial nerve stimulator, and avoiding the subjective factors of the doctor affecting the therapeutic effect of nerve regulation.
[0045] Specifically, the positioning plate provided by the present application includes an indicating portion 10 and a reference portion 20, wherein the indicating portion 10 extends along a first direction and is provided with a puncture positioning hole 101 and a stimulator positioning hole 102, and the reference portion 20 extends from one end of the indicating portion 10 close to the stimulator positioning hole 102 along a second direction perpendicular to the first direction, that is, the positioning plate is in an "L" shape, which is conducive to saving production costs, and in actual use, the indicating portion 10 is abutted against the tibia side of the human body, and the reference portion 20 is abutted against the ankle side of the human body, that is, it is consistent with the shape of the human tibia, which is conducive to saving production costs. It is understandable that in other embodiments, the positioning plate can also be in a long direction or other shapes, as long as the three holes correspond to the ankle side and the tibial nerve of the human body respectively.
[0046] Furthermore, in order to reduce the positioning error caused by individual differences, the notch 103 is located on the side of the reference portion 20 away from the puncture positioning hole 101 along the first direction. In other words, the notch 103 is used to clamp the ankle bone and faces the sole of the human body, so that the bottom of the notch 103 is used as the starting point and extends along the second direction as the reference line 105, and the positioning of the puncture positioning hole 101 and the stimulator positioning hole 102 is more accurate, and the positions of the puncture positioning hole 101 and the stimulator positioning hole 102 will not be offset along the second direction due to the size difference of the human ankle bone.
[0047] Furthermore, in order to facilitate matching with the shape of the ankle bone of the human body, the shape of the notch groove 103 is a semicircular arc.
[0048] Preferably, in an embodiment provided in the present application, the positioning plate further includes a scale portion 30 located on the side of the indicating portion 10 away from the reference portion 20 along the second direction, and the scale portion 30 extends along the first direction. This also facilitates quantifying the moving distance of the tibial nerve stimulator and provides a specific reference for the position of the tibial nerve stimulator, which facilitates doctors to obtain more accurate tibial nerve position data, and is beneficial to improving the level of nerve regulation treatment. Furthermore, the scale portion 30 is engraved with symmetrical scale lines on both sides of the positioning plate in the thickness direction, such as Figure 1 and Figure 2 As shown, this can adapt to the patient's left and right legs, where Figure 1 The positioning plate shown is designed to fit the patient's right leg. Figure 2 The positioning plate shown is adapted to fit the patient's left leg.
[0049] Specifically, in order to improve the standardization of the process of nerve treatment surgery, in one embodiment provided in the present application, the spacing range between the side of the puncture positioning hole 101 away from the stimulator positioning hole 102 and the bottom of the notch groove 103 along the first direction is greater than or equal to 80 mm and less than or equal to 120 mm. This reduces the difficulty of locating the puncture positioning hole 101, and the standardized arrangement of the hole positions is also conducive to improving the consistency of coordination of doctors during surgery.
[0050] Furthermore, considering the differences in the arrangement of blood vessels and nerves at the puncture holes required for different patients, the puncture positioning hole 101 is a waist-shaped hole extending along the first direction, and the length of the puncture positioning hole 101 is greater than or equal to 2 mm and less than or equal to 8 mm. This arrangement reserves space for the doctor to perform the puncture operation, that is, increases the operating surface of the puncture operation, which is conducive to better adaptation to the implanted device.
[0051] Specifically, in order to reduce the influence of the doctor's personal experience on the stimulator positioning, it is also necessary to standardize the position range of the stimulator positioning hole 102. The stimulator positioning hole 102 is a waist-shaped hole extending along the first direction, and the spacing range between the side of the stimulator positioning hole 102 away from the puncture positioning hole 101 and the bottom of the notch groove 103 along the first direction is greater than or equal to 10 mm and less than or equal to 50 mm.
[0052] Further, in order to adapt to the differences in the patient's tibia, the length range of the stimulator positioning hole 102 in the first direction is greater than or equal to 15 mm and less than or equal to 45 mm, and the width range of the stimulator positioning hole 102 in the second direction is greater than or equal to 2 mm and less than or equal to 8 mm. Further, in order to ensure that the stimulator will not easily slip out of the puncture positioning hole 101 after being installed at the preset position of the tibial nerve, the distance range between the side of the stimulator positioning hole 102 close to the puncture positioning hole 101 and the bottom of the notch groove 103 in the first direction is greater than or equal to 40 mm and less than or equal to 80 mm. In actual operation, the doctor can determine the specific position of the stimulator within this range by touch, providing an operating space for the doctor to determine the position of the tibial nerve of different patients.
[0053] Optionally, in an embodiment provided by the present application, the length range of the positioning plate is greater than or equal to 110 mm and less than or equal to 150 mm, and the width range of the positioning plate is greater than or equal to 40 mm and less than or equal to 80 mm. This facilitates the doctor to hold the positioning plate with one hand, with simple operation, small space occupation and convenient storage. Specifically, the length is the distance that the positioning plate extends in the first direction, and the width is the distance that the positioning plate extends in the second direction.
[0054] Optionally, in an embodiment provided by the present application, chamfers 104 are provided around the positioning plate and at the connection between the indicating portion 10 and the reference portion 20.
[0055] Optionally, in an embodiment provided by the present application, the positioning plate is a PVC part. Using this material facilitates the mass production of the positioning plate, and the manufactured positioning plate is durable and anti-drop.
[0056] Exemplarily, in an embodiment provided by the present application, the length and width of the positioning plate are 130 mm and 60 mm respectively, the length of the stimulator positioning hole 102 in the first direction is 32 mm, the width of the stimulator positioning hole 102 in the second direction is 5 mm, the distance between the end of the stimulator positioning hole 102 far from the puncture positioning hole 101 and the bottom of the notch groove 103 in the first direction is 30 mm, the length of the puncture positioning hole 101 is 5 mm, and the distance between the end of the puncture positioning hole 101 far from the stimulator positioning hole 102 and the bottom of the notch groove 103 in the first direction is 100 mm.
[0057] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0058] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A positioning plate for assisting the implantation of a tibial nerve stimulator into a human body, characterized in that: have: Puncture positioning hole (101); a stimulator positioning hole (102), the stimulator positioning hole (102) being arranged at intervals from the puncture positioning hole (101) along a first direction; and A notch groove (103), the notch groove (103) is arranged away from the first direction on a side of the stimulator positioning hole (102) away from the puncture positioning hole (101), and the notch groove (103) is used to clamp the ankle bone of the human body.
2. The positioning plate according to claim 1, characterized in that: The positioning plate comprises: an indicating portion (10), the indicating portion (10) extending along the first direction and having the puncture positioning hole (101) and the stimulator positioning hole (102); and A reference portion (20), the reference portion (20) extending from one end of the indicating portion (10) close to the stimulator positioning hole (102) along a second direction perpendicular to the first direction, and the notch groove (103) is located on a side of the reference portion (20) away from the puncture positioning hole (101) along the first direction.
3. The positioning plate according to claim 2, characterized in that: The notch groove (103) is in a semicircular arc shape.
4. The positioning plate according to claim 2, characterized in that: The positioning plate further comprises a scale portion (30) located on a side of the indicating portion (10) away from the reference portion (20) along the second direction, and the scale portion (30) extends along the first direction.
5. The positioning plate according to claim 2, characterized in that: The spacing between the side of the puncture positioning hole (101) away from the stimulator positioning hole (102) and the bottom of the notch groove (103) along the first direction is greater than or equal to 80 mm and less than or equal to 120 mm.
6. The positioning plate according to claim 5, characterized in that: The puncture positioning hole (101) is a waist-shaped hole extending along the first direction, and the length of the puncture positioning hole (101) is greater than or equal to 2 mm and less than or equal to 8 mm.
7. The positioning plate according to claim 5, characterized in that: The stimulator positioning hole (102) is a waist-shaped hole extending along the first direction, and the spacing range between the side of the stimulator positioning hole (102) away from the puncture positioning hole (101) and the bottom of the notch groove (103) along the first direction is greater than or equal to 10 mm and less than or equal to 50 mm.
8. The positioning plate according to claim 7, characterized in that: The length of the stimulator positioning hole (102) along the first direction is greater than or equal to 15 mm and less than or equal to 45 mm; and / or The width of the stimulator positioning hole (102) along the second direction is greater than or equal to 2 mm and less than or equal to 8 mm.
9. The positioning plate according to claim 8, characterized in that: The spacing between the side of the stimulator positioning hole (102) close to the puncture positioning hole (101) and the bottom of the notch groove (103) along the first direction is greater than or equal to 40 mm and less than or equal to 80 mm.
10. The positioning plate according to claim 1, characterized in that: The length of the positioning plate is greater than or equal to 110 mm and less than or equal to 150 mm; and / or The width of the positioning plate is greater than or equal to 40 mm and less than or equal to 80 mm.