KR102614310B1 - Cup implant inserting angle measurement apparatus and cup implant insertion angle measurement system having the same. - Google Patents

Abstract

The present invention relates to a cup implant insertion angle measuring device and an insertion angle measuring method using the same. More specifically, to a cup implant insertion angle measuring device for measuring the insertion angle when inserting an artificial hip joint cup implant and an insertion angle measuring method using the same. It's about.
The present invention is a cup implant insertion angle measuring device for measuring the insertion angle of an implant cup (20) installed in an artificial hip joint (10), comprising: a head portion (100) contacting the inner surface of the implant cup (20); Disclosed is a cup implant insertion angle measuring device including a rod portion 200 whose end is coupled to the head portion 100 to indicate the insertion direction of the implant cup 20.

Description

Cup implant insertion angle measurement apparatus and cup implant insertion angle measurement system having the same.}

The present invention relates to a cup implant insertion angle measuring device and a cup implant insertion angle measuring system. More specifically, the present invention relates to a cup implant insertion angle measuring device and a cup implant insertion angle measuring system that measure the insertion angle when inserting an artificial hip joint cup implant. It's about.

The concept of implant refers to any orthopedic prosthesis intended to replace a defective joint, especially hip, knee, shoulder, spine, elbow or ankle prosthesis and a mounting device used to prepare the recipient bone to receive the prosthesis.

In particular, artificial hip joint replacement for companion animals is a treatment method in which the defective hip joint is rounded off, an artificial cup is placed, and the artificial support inserted into the thigh is connected to the artificial bone head. This requires the insertion of a cup implant.

However, in the past, there are problems in that the angle cannot be measured when inserting a cup implant, insertion is difficult because it is difficult to intuitively know during the insertion process, and insertion is determined depending on the user's subjective ability.

In particular, the conventionally disclosed cup implant insertion tool is difficult to intuitively and numerically know the cup implant insertion angle, cannot take into account angles that may change depending on the bone shape and implant type of various patients, and only provides a consistent and uniform insertion angle. There is a problem in that it is impossible to insert a cup implant at an angle optimized for various patients.

As a result, previously, the insertion angle of the cup implant was determined based on the user's subjective judgment and visual appearance, and there was a problem in that the insertion angle measuring device that presented only one angle did not provide the optimal insertion angle for the actual patient.
(Patent Document 1) KR 10-2020-0107925 A
(Patent Document 2) KR 10-2017-0088817 A

The purpose of the present invention is to provide a cup implant insertion angle measuring device and a cup implant insertion angle measuring system that can provide a cup implant insertion angle optimized for various patients in order to solve the above problems.

The present invention was created to achieve the object of the present invention as described above, and the present invention is a cup implant insertion angle measuring device for measuring the insertion angle of the implant cup 20 installed in the artificial hip joint 10, A head portion (100) in contact with the inner surface of the implant cup (20); Disclosed is a cup implant insertion angle measuring device including a rod portion 200 whose end is coupled to the head portion 100 to indicate the insertion direction of the implant cup 20.

It may additionally include a hand part 300 coupled to the rod part 200 so as to be hinged and rotatable.

The head portion 100 includes a contact head 110 that contacts the inner surface of the implant cup 20, and a coupling portion 120 provided on the contact head 110 to couple the end of the rod portion 200. ) may include.

The coupling portion 120 may be hinge-coupled with the rod portion 200 so that the end of the rod portion 200 can rotate with respect to the contact head 110.

The rod portion 200 includes a first rod portion 220, the end of which is coupled to the head portion 100, and a second rod portion extending from the first rod portion 220 and coupled to the hand portion 300. It may include 2 load parts 210.

The first rod unit 220 and the second rod unit 210 may be coupled to enable relative rotation in the longitudinal direction about the rotation axis.

The first rod portion 220 includes a plurality of groove portions 221 formed along the circumference of a coupling surface with the second rod portion 210, and the second rod portion 210 includes the first rod portion 210. It is formed along the circumference of the coupling surface with the rod part 220 and may include a plurality of protrusions 211 that correspond to and interfere with the plurality of groove parts 221.

The hand portion 300 includes a handle 310 provided in both directions with respect to the rod portion 200, and a first end coupled to the rod portion 200 and the other end coupled to the handle 310. It may include a connection portion 320.

The first connection part 320 can be coupled to the rod part 200 so as to be hinged and rotatable.

The hand portion 300 further includes a second connection portion 330, one end of which is coupled to the handle 310, and the other end of which is coupled to the rod portion 200 on the opposite side of the first connection portion 320. can do.

The second connection part 330 may be movable along the rod unit 200 as the first connection unit 320 hinges and rotates with respect to the rod unit 200.

The second rod portion 210 has a plurality of interference grooves 212 formed at regular intervals in the longitudinal direction on the contact surface in contact with the second connection portion 330 so that the end of the second connection portion 330 is caught and interfered with. may include.

The second rod portion 210 may further include a scale portion 213 displayed in the longitudinal direction to indicate an insertion angle according to a contact position with the second connection portion 330.

In addition, the present invention is a cup implant insertion angle measuring system for measuring the insertion angle of an implant cup (20) installed in the articular bone, comprising an implant cup (20) inserted and installed in the articular bone, and an end of the implant cup. (20) Alternatively, a cup implant insertion angle measuring system is disclosed that measures the insertion angle of the implant cup 20 by contacting the joint bone.

The cup implant insertion angle measuring device and cup implant insertion angle measuring system according to the present invention have the advantage of being able to provide the insertion angle of the cup implant as a more intuitive and objective value and allowing various angles to be selected.

In particular, the cup implant insertion angle measuring device and cup implant insertion angle measuring system according to the present invention have the advantage of being able to select various angles to guide the optimal cup implant insertion angle for various patients.

In addition, the cup implant insertion angle measuring device and the cup implant insertion angle measuring system according to the present invention prevent the insertion angle of the cup implant from being determined based on the user's subjective judgment or visual shape, and guide the accurate insertion angle to prevent hip replacement. It has the advantage of improving the long-term prognosis.

Figure 1 is a perspective view showing the cup implant insertion angle measuring device according to the present invention.
Figure 2 is a front view showing the front view of the cup implant insertion angle measuring device according to Figure 1.
Figure 3 is a diagram showing the hip joint angle measurement using the cup implant insertion angle measuring device according to Figure 1.
FIGS. 4A and 4B are diagrams showing the angle adjustment of the hand portion of the cup implant insertion angle measuring device according to FIG. 1.
Figure 5 is an enlarged view showing the connection between the head part and the rod part of the cup implant insertion angle measuring device according to Figure 1.
FIG. 6 is a cross-sectional view showing the coupling between the first rod portion and the second rod portion of the cup implant insertion angle measuring device according to FIG. 1.
FIG. 7 is a side view showing the coupling between the first rod portion and the second rod portion of the cup implant insertion angle measuring device according to FIG. 1.
Figure 8 is a cross-sectional view showing the second connection part of the cup implant insertion angle measuring device according to Figure 1 being hung and supported by the second rod part.
Figure 9 is a view showing an exploded view between the head part and the rod part of the cup implant insertion angle measuring device according to Figure 1.

Hereinafter, the cup implant insertion angle measuring device according to the present invention will be described with reference to the attached drawings.

As shown in FIGS. 1 to 3, the cup implant insertion angle measuring device according to the present invention includes a head portion 100 in contact with the inner surface of the implant cup 20, and an end coupled to the head portion 100. It includes a rod portion 200 that indicates the insertion direction of the implant cup 20.

In addition, the cup implant insertion angle measuring device according to the present invention may further include a hand portion 300 coupled to the rod portion 200 so as to be hinged and rotatable.

Here, the implant cup 20 is a component used in artificial hip joint replacement surgery for companion animals, and various types of configurations previously disclosed are applicable.

At this time, artificial hip joint replacement for companion animals involves making an incision in a certain portion of the pelvis, cutting out the necrotic bone head inside, removing it, rounding off the pelvic bone, inserting the implant cup (20), inserting the artificial support into the thigh, and inserting the artificial support into the thigh. This refers to a method of combining the bone heads and then connecting them to the implant cup (20).

Artificial hip joint replacement surgery has the advantage of providing an artificial hip joint through a limited incision without causing additional muscle damage, but has the problem of limited visibility into the inside as it is performed through a limited incision.

In addition, artificial hip replacement surgery for companion animals such as dogs and cats requires a customized implant cup 20 insertion angle due to the variety of species, so a cup implant insertion angle measuring device that can intuitively infer the insertion angle is needed.

The head portion 100 is a component that contacts the inner surface of the implant cup 20, and various configurations are possible.

The head portion 100 may be formed to have a curved surface corresponding to the inner surface of the implant cup 20, and as another example, may have a circular plate shape so that an edge or at least a portion thereof contacts the inner surface of the implant cup 20. You can.

For example, the head portion 100 is a contact head 110 in contact with the inner surface of the implant cup 20, and a coupling portion provided on the contact head 110 to couple the end of the rod portion 200 ( 120) may be included.

The contact head 110 is configured to contact the inner surface of the implant cup 20 or the articular bone of the pelvis 10 to intuitively display the insertion angle of the implant cup 20 through the rod portion 200, which will be described later. It can be.

That is, the contact head 110 may contact the inner surface of the implant cup 20 installed in the joint bone or the joint bone.

To this end, the contact head 110 may have a ball shape with a curved surface corresponding to the inner surface of the implant cup 20 or the articular bone, or may have a circular plate shape so that at least a portion thereof contacts them.

The coupling portion 120 is provided on the contact head 110 to couple the end of the rod portion 200, and various configurations are possible.

For example, the coupling portion 120 is hinged at the end of the rod portion 200 so that the end of the rod portion 200, which will be described later, can rotate in at least one direction among left and right and front and rear with respect to the contact head 110. It may be a combined configuration.

More specifically, as shown in FIG. 5, a pair of coupling portions 120 protrude from the contact head 110 at a certain height and can be coupled between them so that the end of the rod portion 200 can rotate. there is.

At this time, the coupling portion 120 is formed so that a ball provided at the end of the rod portion 200 can be inserted and rotated so that the rod portion 200 can rotate in directions including the left and right directions as well as simply forward and backward. It can be.

The rod portion 200 has an end coupled to the head portion 100 to indicate the insertion direction of the implant cup 20, and various configurations are possible.

That is, the rod part 200 has an end angle that can be adjusted relative to the head part 100. That is, when the head portion 100 is in contact with the implant cup 20 or the joint bone in a rotatable state relative to the head portion 100, the direction of the rod portion 200 moves the implant cup 20. The insertion angle can be displayed intuitively.

More specifically, the rod portion 200, when the head portion 100 is in contact with the inner surface of the implant cup 20 or the articular bone in a state in which the end is coupled to the head portion 100, the head portion 100 ) and is located outside the pet's body, and the insertion angle of the implant cup 20 can be determined through the longitudinal direction of the rod portion 200.

Meanwhile, in this case, as described above, the end of the rod unit 200 is rotatably coupled to the head unit 100, and the insertion angle of the implant cup 20 changes to various angles according to the user's needs. You can check it.

For example, the rod portion 200 has a first rod portion 220 whose end is coupled to the head portion 100, and a hand portion 300 that extends from the first rod portion 220 and is coupled to the end. It may include a second load unit 210.

In addition, the rod portion 200 is provided at the end of the first rod portion 220, is detachable from the head portion 100, and is provided with a second hinge (which is provided to rotate 360 degrees relative to the head portion 100). 230) may be additionally included.

The first rod unit 220 is configured such that its end is rotatably coupled to the head unit 100, and various configurations are possible.

At this time, the first rod unit 220 may be coupled to the second rod unit 210, and may be coupled to enable relative rotation in the longitudinal direction about the rotation axis.

Through this, the first rod unit 220 can change the relative position between the hand unit 300 and the head unit 100 by rotating relative to the second rod unit 210 in the longitudinal direction about the rotation axis. , Through this, the insertion angle of various cup implants can be confirmed.

To this end, the first rod portion 220 includes a plurality of groove portions 221 formed along the circumference of the coupling surface with the second rod portion 210, and the second rod portion 210 includes, It is formed along the circumference of the coupling surface with the first rod part 220 and may include a plurality of protrusions 211 that correspond to and interfere with the plurality of groove parts 221.

That is, as an example, as shown in FIGS. 6 and 7, when the second rod portion 210 is inserted and coupled to the first rod portion 220, a plurality of protrusions are formed on the outer peripheral surface of the second rod portion 210. (211) may be provided at regular intervals along the circumference, and a plurality of grooves 221 may be formed along the inner circumference of the inner circumferential surface of the first rod portion 220 in correspondence with the plurality of protrusions 211. there is.

As a result, the plurality of protrusions 211 interfere with the plurality of grooves 221 and are positioned in correspondence, so that the first rod portion 220 and the second rod portion 210 can be coupled, and further, the plurality of protrusions 211 ) are provided to have some elasticity and can be separated from the groove portion 221 by the user's pressure, thereby allowing the first rod portion 220 and the second rod portion 210 to rotate relative to the longitudinal direction as the rotation axis. there is.

Meanwhile, in order to check the relative rotation angle, the protrusions 211 and grooves 221 may be provided at regular intervals, for example, a total of 24 grooves at equal intervals along the circumference to count rotation at an angle of 15 degrees. 221 and protrusions 211 may be provided.

The second rod portion 210 extends from the first rod portion 220 in the opposite direction of the head portion 100, and may be coupled to the hand portion 300, which will be described later.

At this time, the second rod unit 210 may have a length extending from the first rod unit 220 that can be adjusted to enable use in various environments.

For example, the second rod portion 210 overlaps the outside of the first rod portion 220 to reduce the overall length of the rod portion 200, or extends rearward from the first rod portion 220 to form a rod portion ( 200) The overall length can be increased.

That is, when the second rod part 210 is shortened, the overall length can be reduced by inserting the first rod part 220 into the second rod part 210, and when the length is increased, the second rod part 210 can be inserted into the second rod part 210. The overall length can be increased by the second rod unit 210 moving rearward along the first rod unit 220.

Meanwhile, as shown in FIG. 8, the second rod portion 210 is formed at regular intervals in the longitudinal direction on the contact surface in contact with the second connection portion 330 so that the end of the second connection portion 330 is caught and interfered with. It may include a plurality of interference grooves 212.

For example, a plurality of interference grooves 212 may be formed at regular intervals in the longitudinal direction on the contact surface with the second connection portion 330, and the second connection portion 330 maintains contact with the head portion 100. It can be moved in one state, and may be formed as an asymmetrical 'V' shaped groove so that the end of the second connection part 330 is hooked and supported on the side opposite to the head part 100.

In this case, the plurality of interference grooves 212 may be provided at equal intervals and may have a groove shape corresponding to the shape of the end 331 of the second connection portion 330.

In addition, the second rod part 210 may further include a scale part 213 displayed in the longitudinal direction to indicate an insertion angle according to a contact position with the second connection part 330.

For example, the second rod part 210 is connected to the second rod part of the second connection part 330 in a state in which the first connection part 320 of the hand part 300, which will be described later, is fixed at an angle of 90 degrees from the horizontal plane. (210) The insertion angle can be confirmed through the second angle (θ2), which is the angle between contact positions, and a scale part 213 can be displayed in the longitudinal direction on the second rod part 210 for intuitive confirmation. there is.

Therefore, in a state in which the first connection part 320 is fixed at 90 degrees from the horizontal plane, the scale of the scale 213 displayed at the contact position of the second rod part 210 of the second connection part 330 is read to intuitively determine the first angle. (θ1) can be checked, and through this, the retroversion can be checked.

The second hinge 230 is provided at the end of the first rod unit 220, is detachable from the head unit 100, and is rotatable 360 degrees relative to the head unit 100, and has various configurations. This is possible.

For example, the second hinge 230 is provided at the end of the first rod part 220 and can be coupled to the coupling part 120 of the head part 100 so that it can rotate 360 degrees.

At this time, the second hinge 230 may be simply fixed through screw coupling after adjusting a certain angle with the end of the first rod part 220 inserted into the coupling part 120.

The hand part 300 is coupled to the rod part 200 so as to be hinged and rotatable, and various configurations are possible.

At this time, the hand part 300 may be configured to allow the user to control the entire device by gripping, and furthermore, by adjusting the angle of the rod part 200, such as by adjusting the insertion angle or placing it parallel to the thigh. It can be used to check the angle of the implant cup 20.

For example, the hand part 300 has a foreground that indicates the greater or lesser angle of the femoral head and the femoral neck through the angle between it and the rod part 200 or the indirect measurement angle obtained therefrom. Anteversion, retroversion, and inclination angle can be checked indirectly.

The hand part 300 includes a handle 310 provided in both directions with respect to the rod part 200, and a first connection part 320 whose one end is coupled to the rod part 200 and the other end is coupled to the handle 310. ) may include.

In addition, the hand portion 300 may further include a second connection portion 330, one end of which is coupled to the handle 310, and the other end of which is coupled with the rod portion 200 on the opposite side of the first connection portion 320. You can.

The handle 310 may be provided in both directions with respect to the load unit 200.

For example, as shown in FIGS. 4A and 4B, the handle 310 may be provided to extend from the rod portion 200 on the front to both sides, based on the position of the rod portion 200. It may be provided at a certain angle.

In addition, as shown in FIG. 3, the handle 310 has a first angle between the contact surface of the cup 20 of the head 100 in a state in which the handle 310 is aligned parallel to the pelvic axis on a plane. By measuring the angle θ1, the inclination angle of the pelvis can be measured.

Accordingly, the handle 310 can measure the inclination angle through the first angle θ1 with the head portion 100.

The first connection portion 320 is coupled to the rod portion 200 so as to be hinged and rotatable, and various configurations are possible.

For example, the first connection part 320 has one end coupled to the rod part 200 so as to be hinged and rotatable, and the other end is provided on the handle 310 so that it is connected to the rod part 200 through the handle 310. 1 The angle between the connection parts 320 can be adjusted through hinge rotation.

As a result, the handle 310 and the first connection part 320 can be placed in a position to additionally check or align the angle in the process of measuring the insertion angle of the implant cup 20 through the rod unit 200. there is.

Meanwhile, the first connection portion 320 has an end coupled to a pair of protrusions provided on the rod portion 200, more specifically, the second rod portion 210 so as to be hinged and rotatable, thereby forming the rod portion 200. The angle between the and can be adjusted, and as another example, a ball provided at the end is inserted into the hole provided in the second rod portion 210 and can be rotated in various directions.

The second connection part 320 is configured such that one end is coupled to the handle 310 and the other end is coupled to the rod unit 200 on the opposite side of the first connection part 320, and various configurations are possible.

At this time, the second connection part 320 can be detachably coupled to the handle 310, and further, can be detachably attached to the rod part 200 as needed.

Meanwhile, the second connection part 330 may be movable along the rod unit 200 as the first connection unit 320 hinges and rotates with respect to the rod unit 200.

That is, while the second connection part 330 is coupled to the rod part 200 and the handle 310, the second connection part 330 is connected to the rod part 200 by hinge rotation of the first connection part 320 with respect to the rod part 200. It can be installed to be movable along the rod unit 200 so that the angle between them can be changed.

For example, the end of the second connection part 330 may move along the second rod part 210 when installed in a state that interferes with the guide groove formed in the second rod part 210.

In addition, the second connection part 330 can be hinged through the first connection part 320 and the first hinge 332 to enable relative rotation with respect to the first connection part 320, and through this, the first connection part (320) In a state where 320) is fixed at 90 degrees with respect to the horizontal plane, the contact position with the second rod unit 210 and the angle between the second rod unit 210 and the second rod unit 210 may change.

Since the above is only a description of some of the preferred embodiments that can be implemented by the present invention, as is well known, the scope of the present invention should not be construed as limited to the above embodiments, and the scope of the present invention described above It will be said that all technical ideas and their underlying technical ideas are included in the scope of the present invention.

100: head part 200: rod part
300: Hand part

Claims (14)

A cup implant insertion angle measuring device for measuring the insertion angle of the implant cup (20) installed in the joint bone,
A head portion (100) in contact with the inner surface of the implant cup (20) or the joint bone;
It includes a rod portion 200 whose end is coupled to the head portion 100 to indicate the insertion direction of the implant cup 20,
It further includes a hand part 300 coupled to the rod part 200 so as to be hinged and rotatable,
The hand part 300,
It includes a handle 310 provided in both directions with respect to the rod portion 200, and a first connection portion 320 whose one end is coupled to the rod portion 200 and the other end is coupled to the handle 310,
The first connection part 320 is,
A cup implant insertion angle measuring device characterized in that it is coupled to the rod portion 200 so as to be hinged and rotatable. delete In claim 1,
The head portion 100,
Characterized in that it includes a contact head 110 in contact with the inner surface of the implant cup 20, and a coupling portion 120 provided on the contact head 110 to couple the end of the rod portion 200. Cup implant insertion angle measuring device. In claim 3,
The coupling portion 120 is,
A cup implant insertion angle measuring device, characterized in that the end of the rod portion (200) is hinge-coupled with the rod portion (200) so as to be rotatable with respect to the contact head (110). In claim 1,
The load unit 200,
It includes a first rod portion 220, the end of which is coupled to the head portion 100, and a second rod portion 210 that extends from the first rod portion 220 and is coupled to the hand portion 300. A cup implant insertion angle measuring device characterized in that. In claim 5,
The first load unit 220 and the second load unit 210,
A cup implant insertion angle measuring device characterized by combining the longitudinal direction to enable relative rotation with a rotation axis. In claim 6,
The first load unit 220,
It includes a plurality of groove parts 221 formed along the circumference of the coupling surface with the second rod part 210,
The second load unit 210,
A cup implant insertion angle measuring device comprising a plurality of protrusions (211) formed along the circumference of a coupling surface with the first rod portion (220) and interfering with the plurality of groove portions (221). delete delete In claim 5,
The hand part 300,
Cup implant insertion, characterized in that it further includes a second connection part 330, one end of which is coupled to the handle 310, and the other end of which is coupled with the rod part 200 on the opposite side of the first connection part 320. Angle measuring device. In claim 10,
The second connection part 330 is,
A cup implant insertion angle measuring device, characterized in that the first connection part 320 is movable along the rod part 200 as the hinge rotates with respect to the rod part 200. In claim 11,
The second load unit 210,
Cup implant insertion, characterized in that it includes a plurality of interference grooves 212 formed at regular intervals in the longitudinal direction on the contact surface in contact with the second connection part 330 so that the end of the second connection part 330 is caught and interfered with. Angle measuring device. In claim 11,
The second load unit 210,
A cup implant insertion angle measuring device, characterized in that it additionally includes a scale 213 displayed in the longitudinal direction to indicate the insertion angle according to the contact position with the second connection portion 330. A cup implant insertion angle measurement system for measuring the insertion angle of the implant cup (20) installed in the joint bone,
An implant cup (20) inserted and installed in the joint bone,
Any one of claims 1, 3 to 7, and 10 to 13, wherein the end contacts the implant cup 20 or the joint bone to measure the insertion angle of the implant cup 20. A cup implant insertion angle measuring system including a cup implant insertion angle measuring device according to the clause.

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