CN218979087U - Femur aiming device and medical equipment - Google Patents

Abstract

The utility model discloses a femur aiming device and medical equipment, and relates to the technical field of medical equipment. The femur sighting device comprises a femur drilling sighting device and a positioning arm, wherein the femur drilling sighting device comprises a positioning extending structure, and a measuring part at least used for measuring the depth of a bone marrow canal is arranged on the length direction of the positioning extending structure. The positioning arm comprises a first end and a second end which are oppositely arranged, the first end of the positioning arm is slidably connected to the measuring part, the second end of the positioning arm is provided with a termination position positioning structure, and the termination position positioning structure is positioned in the extending direction of the positioning extending structure. The utility model solves the problem that the depth of the bone tunnel needs to be measured by the depth measuring ruler in the operation process of the femur localizer.

Description

Femur aiming device and medical equipment

Technical Field

The application relates to the technical field of medical instruments, in particular to a femur aiming device and medical equipment.

Background

The femur positioner can position bone tunnel starting position, leads to bore the passageway of passing femur positioner middle part and carries out the brill of bone tunnel to the femur and get, and in this process, the doctor need through experience judgement lead to bore or the dead center position of drill bit, and when boring through current femur positioner and getting bone tunnel, still can take place actual position and preoperative planning position skew's condition, and need use the depth gauge to measure the actual length of bone marrow way. As in the chinese patent application No. CN201721779144.7, a femoral locator for cruciate ligament reconstruction is disclosed, which mainly includes a locator rod, a handle and an aiming plug-in, and the femoral locator needs a depth measuring ruler to assist in measuring the depth of a bone tunnel in the operation process, which results in complicated operation steps, long operation time, and incapability of ensuring the consistency of the actual position of the bone tunnel and the planned position before operation.

Disclosure of Invention

The main aim of the present application is to provide a femur aiming device and a medical device, which at least solve the problem that the depth of a bone tunnel needs to be measured with the aid of a depth measuring ruler in the operation process of a femur positioner in the prior art.

According to a first aspect of embodiments of the present application, there is provided a femoral targeting device comprising:

the femur drilling sight comprises a positioning extending structure, and a measuring part at least used for measuring the depth of a bone marrow canal is arranged in the length direction of the positioning extending structure;

the positioning arm comprises a first end and a second end which are oppositely arranged, the first end of the positioning arm is slidably connected to the measuring part, the second end of the positioning arm is provided with a termination position positioning structure, and the termination position positioning structure is positioned in the extending direction of the positioning extending structure.

Further, the positioning arm includes:

a measurement indicator slidably coupled to the measurement portion;

the main body part encloses to be established and forms the space of stepping down, the main body part is close to the one end fixed connection of thighbone drilling sight is in on the measurement indicator, the main body part is kept away from the one end of measurement indicator is provided with termination position location structure.

Further, the main body part is in an arch-shaped strip structure, and the arch-shaped strip structure is surrounded to form the abdication space.

Further, the arched strip structure comprises:

the initial section is perpendicular to the length direction of the positioning extending structure and is fixedly connected with the measurement indicator;

the arc-shaped section is connected to one end of the initial section, which is far away from the measurement indicator;

and the end section is connected with one end of the arc-shaped section far away from the initial section, and one end of the end section far away from the arc-shaped section is provided with the end position positioning structure.

Further, the apparatus also includes a rivet assembly, the rivet assembly comprising:

a riveting boss provided on one of the measurement indicator and the main body portion;

and the riveting groove is matched with the riveting boss and is arranged on the other one of the measurement indicator and the main body part.

Further, the measurement indicator includes:

the elastic clamping ring is provided with a bayonet, is clamped on the measuring part through the bayonet, and slides and/or rotates relative to the measuring part.

Further, the termination point locating structure includes a locating cone having a cross-sectional area that tapers in a direction proximate the locating extension structure.

Further, the positioning extension structure includes:

the measuring part is a graduated scale arranged along the length direction of the sighting rod body;

the initial position positioning part is arranged at one end of the aiming rod body.

Further, a first drilling channel is provided on the axis direction of the aiming rod body, and the femur drilling aiming device further comprises:

the handheld part is fixed at one end of the sighting rod body far away from the initial position positioning part, and a second drilling channel communicated with the first drilling channel is arranged on the axis direction of the handheld part.

According to a second aspect of embodiments of the present application, there is also provided a medical device comprising a femoral aiming apparatus.

Compared with the prior art, the technical scheme of the application has at least the following technical effects:

this application sets up the measuring part that is used for measuring bone tunnel degree of depth on the femur drilling sight to will be provided with the locating arm sliding connection of terminating position location structure in measuring part, the initial position in bone tunnel is fixed a position to the location extension structure in the femur drilling sight, and after the location of slip locating arm will terminate position location structure location to the termination position in bone tunnel, through the first end of locating arm in the position direct measurement bone tunnel's that measuring part was located degree of depth. In addition, the starting and stopping positions of the bone tunnel can be directly judged in the operation, the bone tunnel is prevented from deviating from the pre-planned position, the operation steps are reduced, and the operation efficiency is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a front view of a femoral aiming device according to one embodiment of the present utility model;

fig. 2 is a schematic perspective view of a femur aiming device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the femoral aiming device in use at an angle;

FIG. 4 is a schematic view of the femoral aiming apparatus in use at another angle;

FIG. 5 is a schematic view of the assembly between the main body portion and the measurement indicator;

fig. 6 is a schematic diagram illustrating the use of the medical device for drilling a bone tunnel according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a femoral drill sight; 11. positioning the extension structure; 111. a sighting rod body; A. a first drilled passage; 112. a start position positioning part; 12. a measuring section; 121. scale marks; 13. a hand-held part; B. a second drilled passage; 20. a positioning arm; 201. a first end; 202. a second end; 21. a measurement indicator; 211. a bayonet; 22. a main body portion; 221. a starting section; 222. an arc section; 223. a termination section; 123. a space for giving way; 30. a termination position locating structure; 31. positioning a cone; 32. a connecting body; 41. riveting bosses; 42. the base is connected; 50. a riveting groove; 60. femur; 61. bone tunnel; 70. and (5) guiding the drill.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 and 2, a first embodiment of the present utility model provides a femoral targeting device comprising a femoral drill collimator 10 and a positioning arm 20. The femoral drill sight 10 includes a positioning extension 11, and a measuring portion 12 for measuring at least the depth of a bone marrow canal is provided in the longitudinal direction of the positioning extension 11. The positioning arm 20 comprises a first end 201 and a second end 202 which are oppositely arranged, the first end 201 of the positioning arm 20 is slidably connected to the measuring part 12, the second end 202 of the positioning arm 20 is provided with a termination position positioning structure 30, and the termination position positioning structure 30 is located in the extending direction of the positioning extending structure 11. According to the embodiment of the utility model, the measuring part 12 for measuring the depth of the bone tunnel 61 is arranged on the femur drilling sight 10, the positioning arm 20 provided with the end position positioning structure 30 is connected to the measuring part 12 in a sliding manner, the positioning extending structure 11 of the femur drilling sight 10 is positioned to the initial position of the bone tunnel 61, after the end position positioning structure 30 is positioned to the end position of the bone tunnel 61 by the sliding positioning arm 20, the depth of the bone tunnel 61 is directly measured at the position of the measuring part 12 through the first end 201 of the positioning arm 20, so that the operation steps are reduced, and the operation efficiency is high. Further, by positioning the start and stop positions of the bone tunnel by the positioning arm 20 provided with the end position positioning structure 30 in cooperation with the femoral drill sight 10, the start and stop positions of the bone tunnel 61 can be directly determined during the operation, and the bone tunnel 61 can be prevented from deviating from the pre-planned position. Therefore, the femur aiming device provided by the embodiment of the utility model can reduce operation steps and has high operation efficiency.

In the embodiment of the present utility model, the positioning extension structure 11 includes an aiming rod 111 and a starting position positioning portion 112, where the starting position positioning portion 112 is disposed at one end of the aiming rod 111. The measuring section 12 is a scale provided along the longitudinal direction of the aiming rod 111, and is composed of a plurality of scale marks 121 provided at intervals along the longitudinal direction of the aiming rod 111. The femoral drill sight 10 further comprises a hand-held portion 13, the hand-held portion 13 is fixed at one end of the sighting rod body 111 away from the initial position positioning portion 112, and a second drilling channel B communicated with the first drilling channel A is arranged in the axial direction of the hand-held portion 13.

Referring to fig. 3 and 4, in use, according to the planned starting and ending point position of the bone tunnel 61, the starting position positioning portion 112 of the positioning extension structure 11 of the femoral drill sight 10 is abutted against the starting position of the bone tunnel 61 on the femur 60, the first end 201 of the positioning arm 20 is slid until the ending position positioning structure 30 of the second end 202 of the positioning arm 20 is abutted against the ending position of the bone tunnel 61 on the femur 60, and then the pilot drill 70 sequentially passes through the second drilling channel B and the first drilling channel a in the femoral drill sight 10, so that the pilot drill 70 drills from the starting position to the ending position positioning structure 30 of the ending position, and in this process, the depth value of the drilled bone tunnel 61 can be measured through the scale mark 121 of the first end 201 of the positioning arm 20 at the position where the measuring portion 12 is located, and the drilled bone tunnel 61 can be ensured to be consistent with the planned bone tunnel 61, and the deviation of the bone tunnel 61 from the planned position can be prevented.

Therefore, the embodiment of the utility model can directly read the depth of the bone tunnel 61 through the measuring part 12 on the femur drilling sight 10, and simultaneously can prevent the bone tunnel 61 from deviating from the planned position, thereby reducing the operation steps and the operation time.

Wherein the positioning arm 20 comprises a measurement indicator 21 and a body portion 22. The measurement indicator 21 is slidably connected to the measurement portion 12. The body 22 encloses and forms a yielding space 123, and the yielding space 123 can ensure that the body 22 of the positioning arm 20 avoids the femur 60 when measuring or positioning the bone tunnel 61 on the femur 60, and avoids interference between the body 22 and the femur 60, thereby affecting operation. One end of the main body 22, which is close to the femoral drill sight 10, is fixedly connected to the measurement indicator 21, and one end of the main body 22, which is far away from the measurement indicator 21, is provided with a termination position positioning structure 30, wherein the termination position positioning structure 30 is used for positioning the termination position of the bone tunnel 61. According to the start-stop position of the bone tunnel 61 planned on the femur 60 before operation, the start position positioning part 112 of the positioning extending structure 11 is propped against the start position of the bone tunnel 61 on the femur 60, then the measuring indicator 21 is pushed to slide on the measuring part 12, the end position positioning structure 30 arranged on the positioning arm 20 is driven to position to the end position of the bone tunnel 61, and at the moment, the depth of the bone tunnel 61 can be read by observing the scale mark 121 of the position of the measuring indicator 21 on the measuring part 12.

Referring to fig. 5, in an embodiment of the present utility model, the main body 22 is in an arch-shaped strip structure, and the arch-shaped strip structure encloses a yielding space 123, and the yielding space 123 is used for avoiding interference between the main body 22 and the femur 60 to affect the operation. The main body 22 may also be an arched plate structure reserved with the abdication space 123, or other body structures reserved with the abdication space 123, and the specific structural form of the main body 22 is not limited only on the basis of avoiding the interference between the main body 22 and the femur 60 in the embodiment of the present utility model. Specifically, the main body 22 of the arch-shaped strip structure includes a start section 221, an arc section 222 and a stop section 223, the start section 221 is the first end 201 of the positioning arm 20, the stop section 223 is the second end 202 of the positioning arm, the start section 221 and the stop section 223 are relatively disposed at two ends of the arc section 222, and the arc section 222 can avoid the femur 60 during the operation, so as to ensure the smooth operation. The initial section 221, the final section 223 and the arc-shaped section 222 may be a single structure formed by sectional processing, and then the initial section 221, the final section 223 and the arc-shaped section 222 are mutually fixed to form the main body 22 integrally. In the embodiment of the present utility model, as shown in fig. 1 and 2, the main body 22 is an integrally formed structure including the initial section 221, the final section 223 and the arc-shaped section 222, and the integrally formed main body 22 is easy to process, and has better overall structural stability, and the service life of the product is not affected by separation and rupture of each section.

The initial section 221 is perpendicular to the length direction of the positioning extending structure 11 and is fixedly connected with the measurement indicator 21. The arcuate segment 222 is connected to the end of the start segment 221 remote from the measurement indicator 21. The femoral aiming apparatus further comprises a staking assembly comprising a staking boss 41 and a staking slot 50, the staking slot 50 being adapted to the staking boss 41, the staking slot 50 being disposable on one of the starter segment 221 and the measurement indicator 21, the staking boss 41 being disposable on the other of the starter segment 221 and the measurement indicator 21 to thereby matingly secure the starter segment 221 and the measurement indicator 21 together. In the embodiment of the utility model, the riveting boss 41 is arranged on the measurement indicator 21 through the connection base 42, the riveting groove 50 is arranged below the initial section 221, and the riveting groove 50 arranged below the initial section 221 is jogged and fixed with the riveting boss 41. The initial section 221 perpendicular to the length direction of the positioning extending structure 11 is convenient to be embedded with the riveting boss 41 on the measurement indicator 21 through the riveting groove 50, the appearance structure of the connecting base 42 is matched with the appearance structure of the initial section 221, and the whole structure is stable and reliable.

The end section 223 is connected to the end of the arc-shaped section 222 away from the start section 221, and the end of the end section 223 away from the arc-shaped section 222 is provided with the end position locating structure 30. The end position positioning structure 30 includes a positioning cone 31, where the positioning cone 31 is connected to the end section 223 by a connector 32, and the cross-sectional area of the positioning cone 31 gradually decreases along the direction close to the positioning extending structure 11, so that the positioning cone 31 can generate a certain grabbing force on the femur 60 when positioning the end position of the bone tunnel 61 on the femur 60, and is not easy to slip, and the end position of the positioning cone 31 is not offset due to the force generated when the drill 70 drills the bone tunnel 61, so that the consistency of the actual drilling position of the bone tunnel 61 and the planned position is further ensured.

The measuring indicator 21 provided in the embodiment of the present utility model includes an elastic snap ring, as shown in fig. 5, a bayonet 211 is provided on the elastic snap ring, the elastic snap ring is clamped on the measuring portion 12 by the bayonet 211, and slides and/or rotates relative to the measuring portion 12, thereby, the positioning arm 20 can slide and/or rotate integrally relative to the measuring portion 12 according to the planned termination position of the bone tunnel 61 on the femur 60, until the termination position positioning structure 30 provided on the positioning arm 20 is positioned to the termination position of the bone tunnel 61.

According to a second aspect of the present embodiment there is also provided a medical device, see fig. 1 to 6, comprising a femoral targeting device according to the first embodiment of the present utility model and a drill guide 70. The femoral aiming device includes a femoral drill aimer 10 and a positioning arm 20. The femoral drill sight 10 includes a positioning extension 11, and a measuring portion 12 for measuring at least the depth of a bone marrow canal is provided in the longitudinal direction of the positioning extension 11. The positioning arm 20 comprises a first end 201 and a second end 202 which are oppositely arranged, the first end 201 of the positioning arm 20 is slidably connected to the measuring part 12, the second end 202 of the positioning arm 20 is provided with a termination position positioning structure 30, and the termination position positioning structure 30 is located in the extending direction of the positioning extending structure 11. According to the embodiment of the utility model, the initial position of the bone tunnel 61 is positioned on the femur 60 through the femur drilling sight 10, after the first end 201 of the positioning arm 20 positions the end position positioning structure 30 to the end position of the bone tunnel 61, the drill guide 70 is used for drilling operations on the femur 60 through the femur drilling sight 10 until the drill guide 70 drills to the end position positioning structure 30, so that the bone tunnel 61 is drilled, the depth of the bone tunnel 61 can be directly measured through the position of the first end 201 of the positioning arm 20 at the measuring part 12, deviation of the bone tunnel 61 from a pre-planned position can be prevented, the operation steps are fewer, and the operation efficiency is high.

The positioning and extending structure 11 includes a pointing rod 111 and a start position positioning portion 112, where the start position positioning portion 112 is disposed at one end of the pointing rod 111. The measuring section 12 is a scale provided along the longitudinal direction of the aiming rod 111, and is composed of a plurality of scale marks 121 provided at intervals along the longitudinal direction of the aiming rod 111. The first drilling channel a is disposed in the axial direction of the aiming rod 111, and the femoral drill sight 10 further includes a hand-holding portion 13, where the hand-holding portion 13 is fixed at an end of the aiming rod 111 away from the initial position positioning portion 112. A second drilling passage B communicating with the first drilling passage a is provided in the axial direction of the hand-held portion 13, and as shown in fig. 6, the pilot drill 70 penetrates the femoral drill sight 10 through the first drilling passage a and the second drilling passage B.

In use, according to the planned starting and ending point of the bone tunnel 61, the starting position positioning part 112 of the positioning extension structure 11 is propped against the starting position of the bone tunnel 61 on the femur 60, the first end 201 of the positioning arm 20 is slid until the ending position positioning structure 30 of the second end 202 of the positioning arm 20 is propped against the ending position of the bone tunnel 61 on the femur 60, and then the pilot drill 70 sequentially passes through the second drilling channel B and the first drilling channel A in the femoral drill sighting device 10, so that the pilot drill 70 drills from the starting position to the ending position positioning structure 30 of the ending position, in the process, the depth value of the drilled bone tunnel 61 can be directly read through the scale mark 121 of the first end 201 of the positioning arm 20 at the position where the measuring part 12 is located, and the drilled bone tunnel 61 can be ensured to be consistent with the planned bone tunnel 61, and the bone tunnel 61 is prevented from deviating from the planned position.

Accordingly, the embodiment of the present utility model provides the measuring part 12 for measuring the depth of the bone tunnel 61 on the femoral drill sight 10, and slidingly connects the positioning arm 20 provided with the end position positioning structure 30 to the measuring part 12. In use, the positioning extension structure 11 of the femoral drill sight 10 is positioned to the starting position of the bone tunnel 61, and after the sliding positioning arm 20 positions the end position positioning structure 30 to the end position of the bone tunnel 61, the depth of the bone tunnel 61 is directly measured by the position of the first end 201 of the positioning arm 20 at the measuring portion 12. Further, by positioning the start and stop positions of the bone tunnel by the positioning arm 20 provided with the end position positioning structure 30 in cooperation with the femoral drill sight 10, the start and stop positions of the bone tunnel 61 can be directly determined during the operation, and the bone tunnel 61 can be prevented from deviating from the pre-planned position. Therefore, the femur aiming device provided by the embodiment of the utility model can reduce the operation steps, thereby reducing the operation time.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A femoral targeting device comprising:

a femur drilling sight (10), wherein the femur drilling sight (10) comprises a positioning extending structure (11), and a measuring part (12) for measuring the depth of a bone marrow canal is arranged on the length direction of the positioning extending structure (11);

the positioning arm (20), the positioning arm (20) includes relative first end (201) and second end (202) that set up, the first end (201) of positioning arm (20) slidably connect on measuring portion (12), the second end (202) of positioning arm (20) is provided with termination position location structure (30), and termination position location structure (30) are located in the extending direction of location extending structure (11).

2. The femoral aiming device according to claim 1, wherein the positioning arm (20) comprises:

-a measurement indicator (21), the measurement indicator (21) being slidably connected to the measurement portion (12);

the main body part (22), main body part (22) enclose and establish and form space (123) of stepping down, main body part (22) are close to one end fixed connection of thighbone drilling sight (10) is in on measuring indicator (21), main body part (22) are kept away from one end of measuring indicator (21) is provided with termination position location structure (30).

3. The femoral aiming device according to claim 2, wherein the body part (22) is in an arched strip-like structure, which encloses the relief space (123).

4. The femoral aiming device of claim 3, wherein the arcuate strip structure comprises:

a starting section (221), wherein the starting section (221) is perpendicular to the length direction of the positioning extending structure (11) and is fixedly connected with the measurement indicator (21);

-an arcuate segment (222), said arcuate segment (222) being connected to an end of said start segment (221) remote from said measurement indicator (21);

-a terminating segment (223), said terminating segment (223) being connected to an end of said arcuate segment (222) remote from said starting segment (221), an end of said terminating segment (223) remote from said arcuate segment (222) being provided with said terminating position locating structure (30).

5. The femoral aiming device of any one of claims 2 to 4, further comprising a staking assembly comprising:

a caulking boss (41), the caulking boss (41) being provided on one of the measurement indicator (21) and the main body portion (22);

and the riveting groove (50) is matched with the riveting boss (41), and the riveting groove (50) is arranged on the other one of the measurement indicator (21) and the main body part (22).

6. The femoral aiming device according to one of the claims 2 to 4, characterized in that the measurement indicator (21) comprises:

the elastic clamping ring is provided with a bayonet (211), and is clamped on the measuring part (12) through the bayonet (211) and slides and/or rotates relative to the measuring part (12).

7. The femoral aiming device according to claim 1, wherein the end position locating feature (30) comprises a locating cone (31), the cross-sectional area of the locating cone (31) tapering in a direction towards the locating extension feature (11).

8. The femoral aiming device according to claim 1, characterized in that the positioning extension (11) comprises:

a sighting rod body (111), wherein the measuring part (12) is a graduated scale arranged along the length direction of the sighting rod body (111);

and the initial position positioning part (112), wherein the initial position positioning part (112) is arranged at one end of the aiming rod body (111).

9. The femoral aiming device according to claim 8, wherein the aiming rod (111) is provided with a first drilling channel (a) in the axial direction, the femoral drill aiming device (10) further comprising:

the handheld part (13), the handheld part (13) is fixed the sighting rod body (111) keep away from the one end of initial position location portion (112), just be provided with on the axis direction of handheld part (13) with first boring passageway (A) intercommunication bore passageway (B).

10. A medical device comprising a femoral aiming device according to any one of claims 1 to 9.

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