Arthroscopic measuring scale for orthopedics department
By designing an arthroscopic measuring ruler for orthopedics, using the first and second operating handles with metal soft rulers, the problem of being unable to measure the length of the bone surface curve of the bone tunnel in the prior art is solved, the requirement of accurately measuring the length of the ligament under the skin is achieved, and the service life of the measurement tool is extended.
Patent Information
- Application Number
- CN202422133295.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing arthroscopic measuring rulers cannot accurately measure the length of the bone surface curve between two bone tunnels, resulting in the inability to accurately measure the required ligament length under the skin.
An arthroscopic measuring ruler for orthopedics is designed, including a first operating handle and a second operating handle. The metal soft ruler is movably installed in the moving channel of the first operating handle. The head end of the metal soft ruler can extend and fit the curved bone surface between the bone tunnels. By using the first operating handle and the second operating handle, the measurement of the length of the bone surface curve is achieved.
It realizes accurate measurement of the length of the bone surface curve between the two bone tunnels under the skin, which facilitates the measurement of the required ligament length under arthroscopy, and extends the service life of the metal soft ruler.
Smart Images
Figure CN223232810U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of orthopedic medical devices, and specifically relates to an arthroscopic measuring ruler for orthopedics. Background Art
[0002] In ligament reconstruction surgery, drilling bone tunnels is a very important part of the operation. After drilling the bone tunnels, a microscopic measuring ruler is used to measure the length between the two tunnels under the skin to facilitate and effectively cut the appropriate ligament.
[0003] Although there are many types of existing arthroscopic measuring rulers that can measure the straight-line distance between two bone tunnels or the height (depth), none of them can fit the internal structure under the skin and cannot measure the length of the bone surface curve between the two bone tunnels, thus failing to accurately measure the required ligaments under the skin. Utility Model Content
[0004] In view of the above analysis, the embodiment of the present invention aims to provide an orthopedic arthroscopic measuring ruler to solve the technical problem that the arthroscopic measuring ruler in the prior art cannot measure the length of the bone surface curve between two bone tunnels, and thus cannot accurately measure the required ligament length under the skin.
[0005] The purpose of this utility model is achieved in this way:
[0006] An arthroscopic measuring ruler for orthopedics, comprising:
[0007] A first operating handle, wherein a moving channel is provided inside the first operating handle,
[0008] a metal tape measure movably mounted within the movable channel of the first operating handle; when the first operating handle is inserted into the first bone tunnel, the tip of the metal tape measure is capable of extending from the outlet of the movable channel, with the extended portion of the tip of the metal tape measure serving as a measuring section;
[0009] The second operating handle is configured to fix the head end of the metal tape measure in the second bone tunnel so that the measuring section of the metal tape measure can fit on the curved bone surface between the first bone tunnel and the second bone tunnel.
[0010] Furthermore, the first operating handle includes a first handle body and a first rod body, and the tail end of the first rod body is fixedly connected to the first handle body; an axial channel is provided through the first handle body, and the axial channel is coaxially arranged and connected to the internal channel of the first rod body to form the moving channel; the outlet of the moving channel is provided on the side wall of the head end of the first rod body.
[0011] Furthermore, a rod head is provided at the head end of the first rod body, and the side wall opening is provided on the side wall of the rod head, and the side wall opening serves as an outlet of the moving channel.
[0012] Furthermore, the inner wall surface of the connection point between the side wall opening and the internal channel is a concave arc surface, and the concave arc surface is configured to guide the head end of the metal tape measure to extend from the side wall opening through the internal channel.
[0013] Furthermore, a locking nut is provided on the first operating handle, and the locking nut is configured to fix the metal tape measure in the moving channel during the measurement process.
[0014] Furthermore, the first operating handle is provided with two symmetrically arranged locking nuts, and the two locking nuts are used to simultaneously clamp the metal tape measure on both sides of the metal tape measure.
[0015] Furthermore, the second operating handle includes a second handle body and a second rod body that are coaxially arranged, and the tail end of the second rod body is fixedly connected to the second handle body.
[0016] Furthermore, the second rod body is a solid rod.
[0017] Furthermore, the head end of the second rod body is provided with an insertion portion, the head end of the metal tape measure is provided with a grabbing hole, and the insertion portion can be inserted into the grabbing hole.
[0018] Furthermore, the inserting portion is an inverted truncated cone or an inverted conical structure.
[0019] Compared with the existing technology, the orthopedic arthroscopic measuring ruler provided by the utility model uses a first operating handle and a second operating handle to measure the length of the bone surface curve between two bone tunnels under the skin through a metal soft ruler with scale lines, so that doctors can more conveniently measure the required ligament length under arthroscopy during surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0021] Figure 1 This is a schematic diagram of the structure of the orthopedic arthroscopic measuring ruler provided by the utility model;
[0022] Figure 2 A schematic diagram of the cross-sectional structure of an orthopedic arthroscopic measuring ruler provided by the present invention;
[0023] Figure 3 This is a disassembled schematic diagram of the first operating handle provided by the utility model;
[0024] Figure 4 This is a schematic diagram of the metal tape measure provided by the present invention extending out of the first operating handle;
[0025] Figure 5 This is a structural schematic diagram of the rod head of the first operating handle provided by the utility model;
[0026] Figure 6 This is a disassembly diagram of the second operating handle provided by the utility model.
[0027] Reference numerals:
[0028] 100 - first operating handle; 101 - first handle body; 102 - first rod body; 103 - rod head; 104 - side wall opening; 105 - locking nut; 106 - concave arc surface;
[0029] 200 - second operating handle; 201 - second handle body; 202 - second rod body; 203 - insertion portion; 300 - metal tape measure; 301 - grabbing hole; 302 - measuring section. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in this disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0031] In the accompanying drawings, the sizes and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in a reverse order from the described order. In addition, the same reference numerals represent the same components.
[0032] When a component is referred to as being “on,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.
[0033] For descriptive purposes, the present disclosure may use spatially relative terms such as "top", "bottom", "beneath", "under", "lower", "above", "upper", "higher", etc., relative to components to describe the relationship of one component to another (other) components as shown in the accompanying drawings.
[0034] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and / or the values provided that will be recognized by those of ordinary skill in the art.
[0035] Example 1
[0036] A specific embodiment of the present invention is as follows Figures 1 to 6 As shown, an orthopedic arthroscopic measuring ruler is disclosed, comprising a first operating handle 100, a second operating handle 200, and a metal tape measure 300. The first operating handle 100 has a movable channel defined therein, and the metal tape measure 300 is movably mounted within the movable channel of the first operating handle 100. The metal tape measure 300 is provided with graduated lines. When the first operating handle 100 is inserted into a first bone tunnel, the tip of the metal tape measure 300 can extend from the exit of the movable channel of the first operating handle 100. The extended tip of the metal tape measure 300 serves as a measuring section 302. The second operating handle 200 is configured to secure the tip of the metal tape measure 300 within the second bone tunnel, allowing the measuring section 302 of the metal tape measure 300 to fit onto the curved bone surface between the first and second bone tunnels.
[0037] In this embodiment, the first operating handle 100 includes a first handle body 101 and a first rod body 102. The first handle body 101 is penetrated by an axial channel; the tail end of the first rod body 102 is fixedly connected to the first handle body 101. The first rod body 102 is a hollow tubular structure. The internal channel of the first rod body 102 is coaxially arranged and connected with the axial channel of the first handle body 101, forming the movable channel for the metal tape measure 300 to pass through; the outlet of the movable channel is provided on the side wall of the head end of the first rod body 102.
[0038] Specifically, a rod head 103 is provided at the head end of the first rod body 102, and a sidewall opening 104 is provided on the sidewall of the rod head 103. The sidewall opening 104 is connected to the internal passage of the first rod body 102 and serves as an outlet for the movement passage of the first operating handle 100. The rod head 103 can be integrally formed with the first rod body 102, or can be connected by welding, threading, or other methods.
[0039] Preferably, the inner wall surface of the connection between the side wall opening 104 on the rod head 103 and the internal channel of the first rod body 102 is a concave arc surface 106. This concave arc surface 106 can guide the head end of the metal tape 300 to smoothly extend from the side wall opening 104 through the internal channel of the first rod body 102.
[0040] In this embodiment, the second operating handle 200 includes a second handle body 201 and a second rod 202, and the tail end of the second rod 202 is fixedly connected to the second handle body 201. Optionally, the second rod 202 is a solid rod.
[0041] The head end of the second rod 202 is provided with an insertion portion 203, and the head end of the metal tape 300 is provided with a gripping hole 301, into which the insertion portion 203 of the second rod 202 can be inserted. The insertion portion 203 can be an inverted truncated cone or an inverted conical structure.
[0042] In one optional embodiment, a locking nut 105 is provided on the first operating handle 100. The locking nut 105 is used to fix the metal tape measure 300 in the moving channel of the first operating handle 100 during the measurement process, so that the subsequent reading of the measurement results is convenient.
[0043] Optionally, two symmetrically arranged locking nuts 105 are provided on the first operating handle 100, and the two locking nuts 105 are used to clamp the metal tape measure 300 to secure the metal tape measure 300. Using two symmetrical locking nuts to clamp the metal tape measure 300 prevents unilateral squeezing of the metal tape measure 300, which could cause local deformation of the metal tape measure 300 and affect the smooth movement of the first operating handle 100 later, thereby extending the service life of the metal tape measure 300.
[0044] Specifically, two symmetrically arranged bolt holes are provided on the outer shell of the first operating handle 100. The bolt holes are connected to the axial channel of the first operating handle 100. The center lines of the two bolt holes coincide with and are perpendicular to the center line of the axial channel of the first operating handle 100. Two locking nuts 105 are symmetrically installed in the two bolt holes respectively. The ends of the two locking nuts 105 can be moved in the moving channel of the first operating handle 100 by a screwing operation, and are respectively tightened on both sides of the metal tape measure 300.
[0045] When using the orthopedic arthroscopic measuring ruler provided in this embodiment to perform measurement, the following steps are included:
[0046] Step 1: After drilling two required bone tunnels to a predetermined depth using a drilling instrument according to a predetermined plan, insert the first operating handle 100 into the first bone tunnel, and then insert the head end of the metal tape measure 300 under the skin.
[0047] Step 2: Use a wire grasping forceps to enter under the skin from the second bone tunnel, grasp the head end of the metal soft tape 300, and pull the grasping hole at the head end of the metal soft tape 300 above the second bone tunnel.
[0048] Step 3: Insert the insertion portion of the second operating handle 200 into the gripping hole of the metal tape measure 300, and then insert it into the second bone tunnel for fixation. At this time, the portion of the metal tape measure 300 between the insertion portion of the second operating handle 200 and the side wall opening 104 of the first operating handle 100 fits the curved bone surface between the two bone tunnels.
[0049] Step 4: Fix the metal tape measure 300 with the locking nut 105 and check the scale line under the arthroscope, or pull out both handles and then check the scale line. This will measure the length of the bone surface curve between the two bone tunnels, thereby accurately measuring the required ligament length under the skin.
[0050] Compared with the prior art, the orthopedic arthroscopic measuring ruler provided in this embodiment has the following features:
[0051] Beneficial effects:
[0052] 1. Use the first operating handle and the second operating handle together to measure the length of the bone surface curve between the two bone tunnels under the skin with a metal soft ruler with scale lines, so that the doctor can more conveniently measure the required ligament length under arthroscopy during surgery.
[0053] 2. Two symmetrically arranged locking nuts are provided on the first operating handle. The two locking nuts are used to clamp the metal tape measure tightly to fix the metal tape measure. This structural setting can prevent the metal tape measure from being locally deformed due to unilateral squeezing, which affects the smooth movement of the first operating handle in the later stage and prolongs the service life of the metal tape measure.
[0054] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of this application. It should be understood that the above description is only the specific implementation methods of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.
Claims
1. An arthroscopic measuring ruler for orthopedics, characterized in that: include: A first operating handle (100), wherein a moving channel is provided inside the first operating handle (100); a metal flexible ruler (300), the metal flexible ruler (300) being movably mounted in the movable channel of the first operating handle (100); when the first operating handle (100) is inserted into the first bone tunnel, the head end of the metal flexible ruler (300) can extend from the outlet of the movable channel, and the extended portion of the head end of the metal flexible ruler (300) serves as a measuring section (302); The second operating handle (200) is configured to fix the head end of the metal tape measure (300) in the second bone tunnel, so that the measuring section (302) of the metal tape measure (300) can fit on the curved bone surface between the first bone tunnel and the second bone tunnel.
2. The orthopedic arthroscopic measuring ruler according to claim 1, characterized in that: The first operating handle (100) comprises a first handle body (101) and a first rod body (102), wherein the tail end of the first rod body (102) is fixedly connected to the first handle body (101); an axial channel is provided through the first handle body (101), and the axial channel is coaxially arranged and communicated with the internal channel of the first rod body (102), thereby forming the movement channel; The outlet of the moving channel is arranged on the side wall of the head end of the first rod body (102).
3. The orthopedic arthroscopic measuring ruler according to claim 2, characterized in that: The head end of the first rod body (102) is provided with a rod head (103), and the side wall opening (104) is provided on the side wall of the rod head (103), and the side wall opening (104) serves as an outlet of the moving channel.
4. The orthopedic arthroscopic measuring ruler according to claim 3, characterized in that: The inner wall surface of the connection point between the side wall opening (104) and the internal channel is an inwardly concave arc surface (106), and the inwardly concave arc surface (106) is configured to guide the head end of the metal tape measure (300) to extend from the side wall opening (104) through the internal channel.
5. The orthopedic arthroscopic measuring ruler according to claim 1, characterized in that: The first operating handle (100) is provided with a locking nut (105), and the locking nut (105) is configured to fix the metal tape measure (300) in the moving channel during the measurement process.
6. The orthopedic arthroscopic measuring ruler according to claim 5, characterized in that: The first operating handle (100) is provided with two symmetrically arranged locking nuts (105), and the two locking nuts (105) are used to simultaneously clamp the metal tape measure (300) on both sides of the metal tape measure (300).
7. The orthopedic arthroscopic measuring ruler according to any one of claims 1 to 6, characterized in that: The second operating handle (200) comprises a second handle body (201) and a second rod body (202) which are coaxially arranged, and the tail end of the second rod body (202) is fixedly connected to the second handle body (201).
8. The orthopedic arthroscopic measuring ruler according to claim 7, characterized in that: The second rod body (202) is a solid rod.
9. The orthopedic arthroscopic measuring ruler according to claim 7, characterized in that: The head end of the second rod (202) is provided with an insertion portion (203), and the head end of the metal tape measure (300) is provided with a grabbing hole (301), and the insertion portion (203) can be inserted into the grabbing hole (301).
10. The orthopedic arthroscopic measuring ruler according to claim 9, characterized in that: The inserting portion (203) is an inverted truncated cone or an inverted conical structure.