Needle frame
By designing the hollow column and pressing column structure of the needle holder, the fast access of the needle with one hand is achieved, solving the problem of easy scattering and contamination of the existing needle holder, and improving the work efficiency and safety of medical staff.
Patent Information
- Application Number
- CN202422184278.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The existing needle holder is prone to scattering and contamination during disinfection and use, and is inconvenient to access, which increases the risk of infection, and requires both hands to operate, affecting the work efficiency of medical staff.
A needle holder is designed, including a needle box, a hollow column and a press column. By sliding the cylindrical bump on the press column on the groove track, the hollow column is rotated, driving the partition movement, and the needle cavity is aligned with the needle hole, so that the needle cavity can be quickly used with one hand, and the independent needle cavity can reduce the possibility of contamination.
It has achieved quick access to the needle with one hand, which has reduced the risk of needle contamination, improved the work efficiency of medical staff, simplified operational steps, and reduced the risk of cross-infection.
Smart Images
Figure CN223081782U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical devices, and particularly relates to a bur holder. Background Art
[0002] A bur holder is a commonly used medical device in stomatology, mainly used for storing and disinfecting burs. A bur is a high-frequency instrument used by dentists, similar to a drill bit, for operations such as opening dental cavities and repairing teeth. In clinical dental work, the use of a bur holder can improve work efficiency, reduce the risk of cross-infection, and help save the amount of cleaning agent and the working time of nurses. In addition, the design and manufacturing methods of bur holders are also constantly innovated to improve their service life and ease of use. Currently, the commonly used bur holders in clinics are flip-top bur holders, which not only easily cause burs to scatter during daily disinfection and use, but also easily contaminate the burs during the process of taking them, increasing the risk of patient infection. In addition, medical staff need to operate with both hands to take burs. Especially when additional burs are needed during the operation, medical staff need to take off their gloves on both hands to pick up the burs, which is very inconvenient for clinical work. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to improve the prior art. Content of the Utility Model
[0003] The purpose of the utility model is to provide a bur holder, which can reduce the possibility of bur contamination. Medical staff can quickly pick up burs with one hand, eliminating steps such as opening the bur holder, picking up the burs, and closing the bur holder, and significantly improving the clinical work efficiency of medical staff.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:
[0005] A bur holder includes a bur box, a hollow column, and a pressing column. The bur box is a cylindrical hollow box body structure. A bur hole is provided at the bottom of the bur box. The hollow column is rotatably connected to the center of the bur box. A groove track is provided on the inner wall of the hollow column. A plurality of partition plates are arranged at intervals along the circumferential direction on the outer wall of the hollow column. The plurality of partition plates divide the inner cavity of the bur box into multiple bur cavities for storing burs. The pressing column is inserted into the hollow column. A return spring is provided between the pressing column and the bur box. A limiting structure for restricting the vertical movement of the pressing column is provided on the pressing column. Cylindrical convex blocks protruding outward are arranged at intervals along the circumferential direction on the pressing column. The cylindrical convex blocks are slidably arranged in the groove track, and the cylindrical convex blocks can drive the hollow column to rotate along the groove track.
[0006] As a preferred embodiment of the above-mentioned bur holder, a plurality of first convex teeth in the shape of ratchet teeth and a plurality of second convex teeth in the shape of saw teeth are provided on the inner wall of the hollow column, and the recessed part between the first convex teeth and the second convex teeth forms the groove track.
[0007] As a preferred embodiment of the above-mentioned bur holder, the second convex teeth are arranged below the first convex teeth. The saw-tooth-shaped second convex teeth include a first inclined surface and a second inclined surface, and the tip of each ratchet-tooth-shaped first convex tooth is aligned with the first inclined surface of each saw-tooth-shaped second convex tooth.
[0008] As a preferred embodiment of the above-mentioned bur holder, the pressing column includes an upper sleeve and a lower sleeve. The lower sleeve is fixed to the bottom of the bur box, the upper sleeve is sleeved on the lower sleeve, and the limiting structure is arranged between the upper sleeve and the lower sleeve.
[0009] As a preferred embodiment of the above-mentioned bur holder, the return spring is arranged inside the lower sleeve. The lower end of the return spring abuts against the bur box or the lower sleeve, and the upper end of the return spring abuts against the upper sleeve.
[0010] As a preferred embodiment of the above-mentioned bur holder, there are 10 partitions. The partitions divide the bur box into 11 bur cavities, and the bur holes are aligned with one of the bur cavities.
[0011] As a preferred embodiment of the above-mentioned bur holder, ventilation holes are provided on the partitions.
[0012] As a preferred embodiment of the above-mentioned bur holder, the bur box includes an upper cover and a lower box body. The upper cover and the lower box body are detachably connected, and the bur holes are arranged on the lower box body.
[0013] Implementing the bur holder provided by the present utility model, compared with the prior art, its beneficial effects are as follows:
[0014] The caries burr cavity of the present utility model is used for placing caries burrs. A burr hole is opened at the bottom of the burr box. When taking a burr, the burr is sent out from the burr hole. The burr box is a cylindrical hollow box body structure. Cooperating with the partition on the hollow column, the partition and the burr box enclose several independent burr cavities. When the hollow column rotates, the partition is driven to move, and the burrs in the burr cavities will also move accordingly. When the burr cavity moves to align with the burr hole, the burrs inside the burr cavity can be sent out from the burr hole, which is convenient for medical staff to take burrs. The independent burr cavities can reduce the possibility of burr contamination. The pressing column is inserted into the hollow column and can only move up and down in the vertical direction under the limitation of its own limiting structure. Cylindrical protrusions protruding outward are arranged at intervals along the circumferential direction on the pressing column. The cylindrical protrusions are slidably arranged on the groove track on the inner wall of the hollow column. Under the guiding action of the groove track, the cylindrical protrusions moving up and down in the vertical direction drive the hollow column to rotate, thereby driving the partition to rotate, so that the burr cavity moves to align with the burr hole for needle extraction, which is convenient for medical staff to use. Medical staff can drive the hollow column to rotate by pressing the pressing column with one hand, so that the adjacent burr cavity rotates to the position aligning with the burr hole. Each press can make the adjacent burr cavity move to the position aligning with the burr hole, which is convenient for taking burrs. Medical staff can quickly take burrs with one hand, saving steps such as opening the burr rack, clamping the burr, and closing the burr rack. At the same time, the establishment of independent burr cavities can quickly place burrs, significantly improving the clinical work efficiency of medical staff. Brief Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.
[0016] Figure 1 is the exploded view of the burr rack of the present utility model;
[0017] Figure 2 is the schematic diagram of the burr rack of the present utility model;
[0018] Figure 3 is the schematic diagram of the pressing column of the present utility model;
[0019] Figure 4 is the schematic diagram after the moving route of the cylindrical protrusion in the groove track and the inner wall of the hollow column are unfolded of the present utility model.
[0020] Markings in the figure:
[0021] 100, burr box; 110, upper cover; 120, lower box body; 130, burr hole; 140, burr cavity; 200, hollow column; 210, first convex tooth; 220, second convex tooth; 221, first inclined surface; 222, second inclined surface; 230, groove track; 300, partition; 310, ventilation hole; 400, pressing column; 410, cylindrical protrusion; 420, upper sleeve; 430, lower sleeve; 431, limiting structure. Detailed implementation manners
[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.
[0023] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the 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, and therefore should not be construed as a limitation to the present utility model.
[0024] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0025] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0026] Please refer to Figures 1 to 4 together, and now a needle holder provided by the embodiment of the present utility model will be described.
[0027] As Figures 1 to 4As shown in the figure, the bur holder of the present utility model includes a bur box 100, a hollow column 200 and a pressing column 400. The bur box 100 is a cylindrical hollow box body structure. A bur hole 130 is provided at the bottom of the bur box 100. The hollow column 200 is rotatably connected to the center of the bur box 100. A groove track 230 is provided on the inner wall of the hollow column 200. A plurality of partition plates 300 are arranged at intervals along the circumferential direction on the outer wall of the hollow column 200. The plurality of partition plates 300 divide the inner cavity of the bur box 100 into a plurality of bur cavities 140 for storing burs. The pressing column 400 is inserted into the hollow column 200. A return spring is provided between the pressing column 400 and the bur box 100. A limiting structure 431 for restricting the vertical movement of the pressing column 400 is provided on the pressing column 400. Cylindrical convex blocks 410 protruding outward are arranged at intervals along the circumferential direction on the pressing column 400. The cylindrical convex blocks 410 are slidably arranged in the groove track 230. The cylindrical convex blocks 410 can drive the hollow column 200 to rotate along the groove track 230.
[0028] Press the pressing column 400. The cylindrical convex blocks 410 on the pressing column 400 will move up and down along the groove track 230. Under the guiding action of the groove track 230, the hollow column 200 is driven to rotate. Each time of pressing and resetting will make the hollow column 200 just rotate one grid, so that the bur cavity 140 adjacent to the bur cavity 140 aligned with the bur hole 130 rotates to the position of the bur hole 130, which is convenient for taking the bur. It can be operated by pressing with one hand, which is convenient and fast.
[0029] Exemplarily, a plurality of first convex teeth 210 in the shape of spines and a plurality of second convex teeth 220 in the shape of sawteeth are provided on the inner wall of the hollow column 200. The recessed part between the first convex teeth 210 and the second convex teeth 220 forms the groove track 230. Under the guiding action of the inclined surfaces of the first convex teeth 210 in the shape of spines and the inclined surfaces of the second convex teeth 220 in the shape of sawteeth, the up and down movement of the cylindrical convex blocks 410 drives the hollow column 200 to rotate.
[0030] Exemplarily, the second convex teeth 220 are arranged below the first convex teeth 210. The serrated second convex teeth 220 include a first inclined surface 221 and a second inclined surface 222. The tip of each ratchet-shaped first convex tooth 210 is aligned with the first inclined surface 221 of each serrated second convex tooth 220. Specifically, the ratchet-shaped first convex tooth 210 is aligned with the position of half of the toothed inclined surface of the serrated second convex tooth 220 at the tip of the inclined surface. In this way, when a medical staff presses the pressing column 400, when it is pressed to the lowest position, under the guiding action of the toothed inclined surface of the second convex tooth 220, the hollow column 200 rotates through a distance of half of the needle holder cavity 140. During the reset process, under the guiding action of the inclined surface of the ratchet-shaped first convex tooth 210, the cylindrical convex block 410 drives the hollow column 200 to rotate through another distance of half of the needle holder cavity 140, so that the cylindrical convex block 410 drives the hollow column 200 to rotate through a distance of one needle holder cavity 140 during each up and down movement, enabling the needle holder cavity 140 to be aligned with the needle hole 130 for needle ejection and needle taking.
[0031] Exemplarily, the pressing column 400 includes an upper sleeve 420 and a lower sleeve 430. The lower sleeve 430 is fixed to the bottom of the needle cartridge 100. The upper sleeve 420 is sleeved on the lower sleeve 430. The limiting structure 431 is arranged between the upper sleeve 420 and the lower sleeve 430. The limiting structure 431 is a limiting track arranged on the lower sleeve 430. The upper sleeve 420 is slidably installed on the limiting track. Under the limiting action of the limiting track, the upper sleeve 420 can only move up and down along the limiting track of the lower sleeve 430, preventing the pressing column 400 from rotating by itself and causing the inability to drive the hollow column 200 to rotate.
[0032] Exemplarily, the return spring is arranged inside the lower sleeve 430. The lower end of the return spring abuts against the needle cartridge 100 or the lower sleeve 430, and the upper end of the return spring abuts against the upper sleeve 420. When the pressing column 400 is pressed, the upper sleeve 420 is pressed downward along the lower sleeve 430. At this time, the return spring is compressed. During reset, the return spring returns to its original state and the upper sleeve 420 moves upward under the elastic force for reset.
[0033] Exemplarily, there are 10 partition plates 300. The partition plates 300 divide the needle cartridge 100 into 11 needle holder cavities 140. The needle hole 130 is aligned with one of the needle holder cavities 140. Specifically, the needle cartridge 100 is divided into 11 needle holder cavities 140. The needle holder cavity 140 that is initially aligned with the needle hole 130 does not hold a needle to avoid the needle falling directly, and the remaining 10 needle holder cavities 140 can all hold needles.
[0034] Exemplarily, ventilation holes 310 are formed in the partition plate 300. The ventilation holes 310 can ventilate the bur cavity 140, and are used for steam to diffuse through the ventilation holes 310 during high-temperature steam sterilization to achieve the sterilization effect.
[0035] Exemplarily, the bur box 100 includes an upper cover 110 and a lower box body 120. The upper cover 110 and the lower box body 120 are detachably connected. The bur holes 130 are arranged in the lower box body 120. The detachable connection between the upper cover 110 and the lower box body 120 facilitates the opening of the upper cover 110 for placing burs. Specifically, the height of the lower box body 120 can be higher than that of the upper cover 110, so that it is more convenient to open the upper cover 110 and place burs into the bur cavity 140.
[0036] Implementing a bur holder provided by the present utility model, compared with the prior art, its beneficial effects are as follows:
[0037] The bur cavity 140 of the present utility model is used for placing burs. The bottom of the bur box 100 is provided with bur holes 130. When taking a bur, the bur is sent out from the bur holes 130. The bur box 100 is a cylindrical hollow box body structure, which cooperates with the partition plate 300 on the hollow column 200. The partition plate 300 and the bur box 100 enclose several independent bur cavities 140. When the hollow column 200 rotates, the partition plate 300 is driven to move, and the burs in the bur cavity 140 will also move accordingly. When the bur cavity 140 moves to align with the bur holes 130, the burs inside the bur cavity 140 can be sent out from the bur holes 130, facilitating medical staff to take burs. The independent bur cavities 140 can reduce the possibility of bur contamination. The pressing column 400 is inserted into the hollow column 200 and can only move up and down in the vertical direction under the restriction of its own limiting structure 431. Cylindrical protrusions 410 protruding outward are arranged at intervals in the circumferential direction on the pressing column 400. The cylindrical protrusions 410 are slidably arranged in the groove tracks 230 on the inner wall of the hollow column 200. Under the guiding action of the groove tracks 230, the cylindrical protrusions 410 moving up and down in the vertical direction drive the hollow column 200 to rotate, thereby driving the partition plate 300 to rotate, so that the bur cavity 140 moves to align with the bur holes 130 for needle ejection, facilitating medical staff to take burs. By pressing the pressing column 400 with one hand, medical staff can drive the hollow column 200 to rotate, so that the adjacent bur cavity 140 rotates to the position aligning with the bur holes 130. Each press can make the adjacent bur cavity 140 move to the position aligning with the bur holes 130, facilitating the taking of burs. Medical staff can quickly take burs with one hand, eliminating steps such as opening the bur holder, clamping the burs, and closing the bur holder. At the same time, the establishment of independent bur cavities 140 can quickly place burs, significantly improving the clinical work efficiency of medical staff.
[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.
Claims
1. A bur holder, characterized in that, Comprising: A bur box, the bur box being a cylindrical hollow box structure, and a bur hole being formed at the bottom of the bur box; A hollow column, the hollow column being rotatably connected to the center of the bur box, a groove track being provided on the inner wall of the hollow column, and a plurality of partition plates being arranged at intervals along the circumferential direction on the outer wall of the hollow column, the plurality of partition plates separating the inner cavity of the bur box to form a plurality of bur cavities for storing burs; A pressing column, the pressing column being inserted into the hollow column, a return spring being provided between the pressing column and the bur box, a limiting structure for restricting the vertical movement of the pressing column being provided on the pressing column, a cylindric convex block protruding outward being arranged at intervals along the circumferential direction on the pressing column, the cylindric convex block being slidably arranged on the groove track, and the cylindric convex block being capable of driving the hollow column to rotate along the groove track.
2. The bur holder according to claim 1, characterized in that, A plurality of first convex teeth in a shape of a ratchet and a plurality of second convex teeth in a shape of a saw are provided on the inner wall of the hollow column, and a recessed part between the first convex teeth and the second convex teeth forms the groove track.
3. The bur holder according to claim 2, characterized in that, The second convex teeth are arranged below the first convex teeth, and the saw-shaped second convex teeth include a first inclined surface and a second inclined surface, and the tip of each ratchet-shaped first convex tooth is aligned with the first inclined surface of each saw-shaped second convex tooth.
4. The bur holder according to claim 1, wherein, The pressing column includes an upper sleeve and a lower sleeve, the lower sleeve being fixed to the bottom of the bur box, the upper sleeve being sleeved on the lower sleeve, and the limiting structure being arranged between the upper sleeve and the lower sleeve.
5. The bur holder according to claim 4, characterized in that, The return spring is arranged inside the lower sleeve, the lower end of the return spring abutting against the bur box or the lower sleeve, and the upper end of the return spring abutting against the upper sleeve.
6. The bur holder according to claim 1, wherein, There are 10 partition plates, the partition plates separating the bur box into 11 bur cavities, and the bur hole being aligned with one of the bur cavities.
7. The bur holder according to claim 1, characterized in that, Ventilation holes are formed in the partition plates.
8. The bur holder according to claim 1, wherein, The bur box includes an upper cover and a lower box body, the upper cover and the lower box body being detachably connected, and the bur hole being arranged on the lower box body.