CN213217696U - Rebound type bone drilling depth measurer - Google Patents
Rebound type bone drilling depth measurer Download PDFInfo
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- CN213217696U CN213217696U CN202021306665.2U CN202021306665U CN213217696U CN 213217696 U CN213217696 U CN 213217696U CN 202021306665 U CN202021306665 U CN 202021306665U CN 213217696 U CN213217696 U CN 213217696U
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- sleeve
- drilling depth
- probe
- bone drilling
- sleeve pipe
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Abstract
The utility model discloses a resilience formula bone drilling depth measurement ware, the installation structure comprises a sleeve pipe, a probe and a spring have been accommodated in the sleeve pipe, a probe upper end fixedly connected with dipperstick, the dipperstick with sleeve pipe sliding connection extends outside the sleeve pipe, the probe lower extreme extends outside the sleeve pipe and bend and form a couple, the spring housing is located outside the probe and be located the dipperstick below. The utility model discloses a caliber utilizes the resilience force of spring, makes probe measurement bone drilling back automatic springback reset, and convenient operation not only still stable measurement improves the measuring accuracy.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, especially, relate to a resilience formula bone drilling depth caliber.
Background
As shown in fig. 1 and 2, in a surgical operation, after a fracture, a steel plate 2 is usually adopted to fix a fracture 13, so as to connect two ends of a fractured bone 1, before the steel plate 2 is fixed, a bone drilling hole needs to be drilled on a compact bone 11 near the fracture 13 by an electric drill, then a screw 3 is in threaded fit with the bone drilling hole to fix the steel plate 2 on the bone 1, because the screw 3 needs to penetrate through the compact bone 11 and a medullary cavity 12, only after the bone drilling depth is accurately measured, an appropriate length of an screw 3 can be selected, a depth gauge is usually used to measure the bone drilling depth, the measurement accuracy of the depth gauge directly affects the selection of the screw, the existing gauge has low accuracy, is inconvenient to operate, needs two hands to operate during use, and is easy to shake, and the hook of the gauge cannot hook the bone surface, so that the measurement is inaccurate.
Therefore, the inventors have endeavored to design a measuring device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a resilience formula bone drilling depth measurement ware utilizes the resilience force of spring, makes probe measurement bone drilling back automatic springback reset, and convenient operation not only still stable measurement improves the measuring accuracy.
In order to achieve the above object, the utility model discloses a technical scheme who adopts is:
the utility model provides a resilience formula bone drilling depth measurement ware, includes the sleeve pipe, a probe and a spring have been accommodated in the sleeve pipe, a probe upper end fixedly connected with dipperstick, the dipperstick with sleeve pipe sliding connection extends outside the sleeve pipe, the probe lower extreme extends outside the sleeve pipe and bends and form a couple, the spring housing is located outside the probe and be located the dipperstick below.
As an improvement of the rebound bone drilling depth measurer of the utility model, the plane area of the bottom surface of the sleeve is larger than the cross-sectional area of the bone drilling hole on the bone;
when the spring is in a free state, the hook abuts against the sleeve.
As an improvement of the utility model, a cylindricality breach has been seted up to the dipperstick side, cylindricality breach cross-section is semi-circular or multilateral shape, be equipped with the scale mark on the cylindricality breach.
As an improvement of the utility model, the dipperstick lower extreme is equipped with a sliding part, the sliding part is located in the sleeve and with sleeve pipe inner wall sliding connection.
Preferably, the sliding portion is integrally formed with the measuring scale.
In order to achieve the above object, the utility model discloses another kind of technical scheme who adopts does:
the utility model provides a resilience formula bone drilling depth measurement ware, includes the sleeve pipe, a probe and a spring have been accommodated in the sleeve pipe, a probe upper end fixedly connected with dipperstick, the dipperstick with sleeve pipe sliding connection extends outside the sleeve pipe, the probe lower extreme extends outside the sleeve pipe and bends and form a couple, the spring housing is located outside the probe and be located the dipperstick below.
As an improvement of the rebound bone drilling depth measurer of the utility model, the plane area of the bottom surface of the sleeve is larger than the cross-sectional area of the bone drilling hole on the bone;
when the spring is in a free state, the hook abuts against the sleeve.
As an improvement of the utility model, a cylindricality breach has been seted up to the dipperstick side, cylindricality breach cross-section is semi-circular or multilateral shape, be equipped with the scale mark on the cylindricality breach.
As an improvement of the utility model, the dipperstick lower extreme is equipped with a sliding part, the sliding part is located in the sleeve and with sleeve pipe inner wall sliding connection.
As an improvement of the resilient bone drilling depth measuring device of the present invention, a threaded sleeve is screwed on the top of the sleeve, a limiting component for preventing the sliding portion from sliding to the outside of the sleeve is accommodated in the threaded sleeve, and the limiting component is located between the threaded sleeve and the sleeve.
As an improvement of the resilient bone drilling depth measurer of the present invention, the limiting component includes an inner ring and a stopper for preventing the sliding portion from sliding to the catch outside the sleeve, the stopper cover is disposed on the inner ring and located above the sliding portion.
As an improvement of the utility model, the inner circle is provided with a semicircular groove, the separation blade butt is arranged on the groove.
Preferably, the sliding portion is integrally formed with the measuring scale.
In order to achieve the above object, the present invention adopts another technical solution as follows:
the utility model provides a resilience formula bone drilling depth measurement ware, includes the sleeve pipe, a probe and a spring have been accommodated in the sleeve pipe, a probe upper end fixedly connected with dipperstick, the dipperstick with sleeve pipe sliding connection extends outside the sleeve pipe, the probe lower extreme extends outside the sleeve pipe and bends and form a couple, the spring housing is located outside the probe and be located the dipperstick below.
As an improvement of the rebound bone drilling depth measurer of the utility model, the plane area of the bottom surface of the sleeve is larger than the cross-sectional area of the bone drilling hole on the bone;
when the spring is in a free state, the hook abuts against the sleeve.
As an improvement of the utility model, a cylindricality breach has been seted up to the dipperstick side, cylindricality breach cross-section is semi-circular or multilateral shape, be equipped with the scale mark on the cylindricality breach.
As an improvement of the utility model, the dipperstick lower extreme is equipped with a sliding part, the sliding part is located in the sleeve and with sleeve pipe inner wall sliding connection.
As an improvement of the resilient bone drilling depth measurer of the present invention, the sleeve top cap is provided with a fixing plate for preventing the sliding portion from sliding to the outside of the sleeve, the fixing plate is located above the sliding portion.
As an improvement of the utility model, a semicircular notch is arranged on the sleeve, and the fixing piece is abutted to the notch.
Preferably, the sliding portion is integrally formed with the measuring scale.
Compared with the prior art, the utility model discloses resilience formula bone drilling depth measurement ware establishes the spring through set up the probe in the sleeve pipe and the cover on the probe, utilizes the resilience force of spring, makes probe measurement bone drilling back automatic springback reset, and convenient operation not only still stable measurement improves the measuring accuracy.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a fixing steel plate after a human leg fracture;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a perspective view of a measuring device according to a first embodiment of the present invention;
FIG. 4 is a perspective view showing the internal structure of the measuring device according to the first embodiment of the present invention;
FIG. 5 is a front view and a partial cross-sectional view of a second embodiment of the measuring device of the present invention;
FIG. 6 is a cross-sectional view of a second embodiment of the measuring device of the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 is an enlarged perspective exploded view of a position-limiting member of a measuring device according to a second embodiment of the present invention;
FIG. 9 is a front view and a partial sectional view of a third embodiment of the measuring device of the present invention;
FIG. 10 is a cross-sectional view of a third embodiment of the measuring device of the present invention;
FIG. 11 is an enlarged view at B of FIG. 10;
FIG. 12 is an enlarged perspective exploded view of a sleeve and a fixing piece of a measuring device according to a third embodiment of the present invention;
fig. 13 is a schematic view of the usage state of the resilient bone drilling depth measuring device of the present invention.
Illustration of the drawings:
1. bone, 2, steel plate, 3, screw, 11, compact bone, 12, marrow cavity, 13, crack, 14, bone drilling, 4, measurer, 41, measuring scale, 411, sliding part, 412, graduation line, 42, probe, 421, hook, 43, sleeve, 431, notch, 44, spring, 45, inner ring, 451, groove, 46, blocking piece, 47, thread sleeve, 48, fixing piece, 49 and pin.
Detailed Description
The following embodiments of the present invention will be specifically explained with reference to the accompanying drawings, which are only used for reference and illustration, and do not limit the scope of the present invention.
Example 1
Referring to fig. 3 and 4, a resilient bone drill depth measurer 4 includes a sleeve 43, a measuring ruler 41, a probe 42 and a spring 44, and the measurer 4 is used for measuring the depth of a bone drill.
Referring to fig. 3 and 4, the probe 42 and the spring 44 are accommodated in the cavity of the sleeve 43, the lower end of the probe 42 extends out of the sleeve 43 and is bent to form a hook 421, the spring 44 is sleeved outside the probe 42, the measuring ruler 41 is fixed at the upper end of the probe 42 and is located above the spring 44, a side surface of the measuring ruler 41 is provided with a cylindrical notch (not marked), the cross section of the cylindrical notch is semicircular or polygonal, in this embodiment, preferably, the cross section of the cylindrical notch is semicircular, the cylindrical notch is provided with a scale mark 412, the lower end of the measuring ruler 41 is provided with a sliding part 411, the sliding part 411 is located in the sleeve 43 and is in sliding connection with the inner wall of the sleeve 43, in order to save the manufacturing cost, the sliding part 411 and the measuring ruler 41 are integrally formed, the upper end of the measuring ruler 41 extends out of the sleeve 43, so that the scale mark 412 is exposed out of, when the spring 44 is in the free state, the hook 421 abuts against the flat surface of the bottom surface of the sleeve 43, preventing measurement errors.
Referring to fig. 3, 4 and 13, the resilient bone drilling depth measuring device 4 of the present embodiment is positioned in the sleeve 43 using the sliding portion 411 of the front measuring ruler 41, and at this time, the spring 44 is in a free state, and the hook 421 abuts against the plane of the bottom surface of the sleeve 43, and the method of using the measuring device 4 of the present embodiment is: the measuring instrument 4 is placed on the bone surface of the compact bone 11 and aligned with the bone bore 14, the hook 421 is extended into the bone bore 14, the measuring scale 41 is pushed downwards, the sliding part 411 slides in the sleeve 43, the spring 44 is compressed and deformed, the outer leakage part of the probe 42 extends and passes through the marrow cavity 12 and the bone bore 14 until the hook 421 is hung on the other bone surface of the compact bone 11, the reading of the measuring instrument 4 is read, the measuring instrument 4 is taken out, and the spring 44 is elastically deformed to a free state.
The resilience formula bone drilling depth caliber 4 of this embodiment, because before caliber 4 measures the bone drilling depth, spring 44 is in free state (sliding part 411 can not slide outside sleeve 43), utilizes the resilience force of spring after the measurement, makes the probe measure the automatic resilience after the bone drilling and resets, convenient operation not only, still stable measurement improves measurement accuracy.
Example 2
Referring to fig. 5 to 8, a second embodiment of the present invention is shown, and the present embodiment is different from the first embodiment in that: the resilient bone drilling depth measuring device 4 of the present embodiment further includes a threaded sleeve 47 and a limiting component (not labeled) for preventing the sliding portion 411 from sliding out of the sleeve 43, the threaded sleeve 47 is screwed with the top of the sleeve 43, the limiting component (not labeled) is accommodated in the threaded sleeve 47, the limiting assembly is located between the threaded sleeve 47 and the sleeve 43, the limiting assembly includes an inner ring 45 and a blocking piece 46 for preventing the sliding portion 411 from sliding to the outside of the sleeve 43, a semi-annular groove 451 is formed in the inner ring 45, a notch corresponding to the groove 451 is formed in the bottom edge of the blocking piece 46, the blocking piece 46 is covered on the inner ring 45 and located above the sliding portion 411, the notch in the blocking piece 46 abuts against the groove 451, the blocking piece 46 in the embodiment is preferably semi-circular, the measuring portion of the measuring scale 41 penetrates through the inner ring 45 and the threaded sleeve 47 and extends to the outside of the sleeve 43, other structures are the same as those in the first embodiment, and description is omitted here.
Referring to fig. 6, 7 and 13, the resilient bone drilling depth measuring device 4 of the present embodiment is positioned in the sleeve 43 using the sliding portion 411 of the front measuring ruler 41, and at this time, the spring 44 is in a free state or a compressed state, and the hook 421 abuts against the plane of the bottom surface of the sleeve 43, and the measuring device 4 of the present embodiment is used by: the measuring instrument 4 is placed on the bone surface of the compact bone 11 and aligned with the bone bore 14, the hook 421 is extended into the bone bore 14, the measuring scale 41 is pushed downward, the sliding part 411 slides in the sleeve 43, the spring 44 is further compressed and deformed, the outer leakage part of the probe 42 extends and passes through the marrow cavity 12 and the bone bore 14 until the hook 421 is hung on the other bone surface of the compact bone 11, the reading of the measuring instrument 4 is read, the measuring instrument 4 is taken out, and the spring 44 is restored to the initial free state or the initial compressed state.
The resilience type bone drilling depth measurer 4 of the embodiment, because the top of the sleeve 43 is screwed with the threaded sleeve 47 and the threaded sleeve 47 is internally provided with a limiting component capable of preventing the sliding part 411 from sliding to the outside of the sleeve 43, therefore, before the measurer 4 measures the bone drilling depth, the spring 44 is in a free state or a compressed state, when the initial state of the spring 44 is in the free state, the limiting component can prevent manual misoperation, the sliding part 411 is drawn out from the sleeve 43, when the initial state of the spring 44 is in the compressed state, the limiting component can prevent the sliding part 411 from popping out from the sleeve 43, the measurer 4 of the embodiment measures the bone drilling depth, the spring 44 is compressed and deformed, the resilience force of the spring is utilized after measurement, the probe measures the automatic resilience reset after the bone drilling, the operation is convenient, the measurement is stable, and the measurement accuracy is improved.
Example 3
Referring to fig. 9 to 12, a third embodiment of the present invention is shown, and the present embodiment is different from the first embodiment in that: the resilient bone drilling depth measuring device 4 of the present embodiment further includes a fixing plate 48 for preventing the sliding portion 411 from sliding to the outside of the sleeve 43, a semicircular notch 431 is formed in the sleeve 43, the fixing plate 48 is covered on the top of the sleeve 43, the sleeve 43 and the fixing plate 48 are fixedly connected through a plurality of pins 49, the fixing plate 48 is located in the notch 431 and abuts against the notch 431, the fixing plate 48 is located above the sliding portion 411, the measuring portion of the measuring scale 41 extends to the outside of the sleeve 43, and other structures are the same as those of the first embodiment and are not described again.
Referring to fig. 9 to 13, the resilient bone drilling depth measuring device 4 of the present embodiment is located in the sleeve 43 using the sliding portion 411 of the front measuring ruler 41, and at this time, the spring 44 is in a free state or a compressed state, and the hook 421 abuts against the plane of the bottom surface of the sleeve 43, and the usage method of the measuring device 4 of the present embodiment is the same as that of the second embodiment, and will not be described again.
The resilience formula bone drilling depth caliber 4 of this embodiment, because sleeve 43 top is fixed with can prevent sliding part 411 and slide to the outer stationary blade 48 of sleeve 43, this stationary blade 48's effect is the same with the spacing subassembly effect in the second embodiment, therefore, before caliber 4 measures the bone drilling depth, spring 44 is in free state or compression state, caliber 4 measures the bone drilling depth in-process, spring 44 compression deformation, utilize the resilience force of spring after the measurement, make the probe measure the automatic rebound reset after the bone drilling, and the operation is convenient, and the measurement accuracy is improved.
The utility model discloses resilience formula bone drilling depth caliber, after measuring the bone drilling depth, utilize the resilience force of spring, make probe automatic springback reset, but one-hand operation reduces the shake, and not only convenient operation still stable measurement improves the measuring accuracy.
The above disclosure is only for the preferred embodiment of the present invention, and the scope of the right protection of the present invention cannot be limited thereby, and therefore, the equivalent changes made in the claims of the present invention still belong to the scope covered by the present invention.
Claims (10)
1. The utility model provides a resilience formula bone drilling depth caliber, includes the sleeve pipe, its characterized in that, a probe and a spring are held in the sleeve pipe, probe upper end fixedly connected with dipperstick, the dipperstick with sleeve pipe sliding connection extends outside the sleeve pipe, the probe lower extreme extends outside the sleeve pipe and bends and form a couple, the spring housing is located outside the probe and be located the dipperstick below.
2. The resilient bone drill depth gauge according to claim 1, wherein the planar area of the bottom surface of the sleeve is larger than the cross-sectional area of the bone drill hole in the bone;
when the spring is in a free state, the hook abuts against the sleeve.
3. The resilient bone drilling depth measurer according to claim 1, wherein a cylindrical notch is formed in a side surface of the measuring ruler, the cross section of the cylindrical notch is semicircular or polygonal, and the cylindrical notch is provided with scale lines.
4. The resilient bone drilling depth gauge according to claim 1, wherein a sliding portion is provided at a lower end of the gauge, the sliding portion being located inside the casing and slidably connected to an inner wall of the casing.
5. The resilient bone drilling depth measurer according to claim 4, wherein a threaded sleeve is threaded on the top of the sleeve, and a limiting component for preventing the sliding part from sliding out of the sleeve is received in the threaded sleeve and is located between the threaded sleeve and the sleeve.
6. The resilient bone drilling depth gauge according to claim 5, wherein the stop assembly comprises an inner ring and a stop piece for preventing the sliding portion from sliding outside the sleeve, the stop piece covering the inner ring and being located above the sliding portion.
7. The resilient bone drilling depth gauge of claim 6, wherein the inner ring is provided with a semi-annular groove, and the stop tab abuts the groove.
8. The resilient bone drilling depth measurer according to claim 4, wherein the sleeve top cover is provided with a fixing plate for preventing the sliding portion from sliding outside the sleeve, the fixing plate being located above the sliding portion.
9. The resilient bone drilling depth gauge according to claim 8, wherein the sleeve is provided with a semicircular notch, and the fixing plate abuts against the notch.
10. The resilient bone drill depth gauge according to claim 4, wherein the sliding portion is integrally formed with the gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021306665.2U CN213217696U (en) | 2020-07-06 | 2020-07-06 | Rebound type bone drilling depth measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021306665.2U CN213217696U (en) | 2020-07-06 | 2020-07-06 | Rebound type bone drilling depth measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213217696U true CN213217696U (en) | 2021-05-18 |
Family
ID=75886819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021306665.2U Active CN213217696U (en) | 2020-07-06 | 2020-07-06 | Rebound type bone drilling depth measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213217696U (en) |
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2020
- 2020-07-06 CN CN202021306665.2U patent/CN213217696U/en active Active
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