CN218943315U - Pelvis balance evaluation device - Google Patents

Abstract

The utility model relates to a pelvis balance assessment device, which comprises a shell unit, a rotating shaft unit, a winding unit, a fixing unit and a laser unit, wherein the shell unit is provided with a plurality of rotating shafts; under the condition that the tape coiling unit stretches towards the two ends of the tape coiling unit, the tape coiling unit drives the rotating shaft unit to rotate, and the two ends of the tape coiling unit are fixed at the back upper ridge of the patient by the fixing unit. The device has the advantages of simple structure, convenient use, convenient operation in operation and repeated use of disinfection and sterilization; the device is used noninvasively, and cannot cause physical damage to patients; the dynamic evaluation can be performed in the operation, so that the operation efficiency is effectively improved; the method is not only suitable for pelvic coronary surface balance evaluation during pelvic deformity and repair, but also suitable for coronary surface balance evaluation of spinal deformity.

Description

Pelvis balance evaluation device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a pelvis balance assessment device.

Background

Failure to repair pelvic lesions in time is a significant cause of pelvic deformity, and whether the pelvic coronal position is balanced is a significant factor affecting body balance after pelvic injury or deformity surgical reduction. Pelvic coronal plane balance can be evaluated by using the offset positional relationship between the perpendicular bisector of the posterior superior iliac spine line of the pelvis and the normal line of the human spine.

The utility model patent CN211674285U discloses a spine coronal plane balance assessment device, which comprises a reference rod, two positioning rods and a measurement unit, wherein the measurement unit is used for measuring the distance between the reference rod and a spinous process of a C7 vertebral body, because one ends of the two positioning rods are hinged to the reference rod at the same hinge point and form a positioning included angle, the other ends of the two positioning rods are arranged at the back of a human body and correspond to the upper edge points of the two iliac spines respectively, and the angle bisectors of the positioning included angles coincide with the reference rod, so that the reference rod coincides with the perpendicular bisectors of the connecting lines of the upper edge points of the two iliac spines of the human body, and the connecting lines of the upper edge points of the two iliac spines of the human body are the front upper iliac spine connecting lines.

The utility model patent CN214128548U discloses a crown plane balance measuring device in spinal column orthopedics, which comprises a horizontal scale, a left fixed nail, a right fixed nail, a vertical scale and a measuring scale, wherein the horizontal scale is provided with a chute, the left fixed nail and the right fixed nail are in sliding connection with the horizontal scale through the chute, the vertical scale is fixedly connected with the horizontal scale, and one end of the measuring scale is connected with the horizontal scale through a rotating shaft; the coronal plane balance measuring device in the spinal column orthopedics simplifies the operation steps, can quickly and conveniently measure whether a patient is in an unbalanced state or not through the angle measuring device arranged on the device, can be operated by one person, and can accurately and quickly measure the angle after the angle between the scales is marked on the skin compared with the angle between the scales.

The utility model patent CN215019194U of China discloses a coronal plane balance evaluation device in spinal column orthopedics, which comprises a horizontal measuring rod, a supporting rod, a swinging arm supporting rod and a swinging arm pointer, wherein the horizontal measuring rod is arranged on a bilateral ilium positioning sacrum bilateral pedicle, one end of the supporting rod is rotationally connected with the central position of the horizontal measuring rod, one end of the swinging arm supporting rod is vertically and rotationally connected with a rotating shaft arranged at the other end of the supporting rod, and one end of the swinging arm pointer is rotationally connected with the other end of the swinging arm supporting rod. The utility model aims at measuring the balance recovery degree of the coronal plane in the scoliosis orthopedics, assists a surgeon in objectively evaluating the recovery degree of the coronal plane in the scoliosis orthopedics, and can adjust the correction degree of the coronal plane in time so as to improve the curative effect and the success rate of the scoliosis orthopedics; the utility model has the advantages of simple structure, low cost and longer service life.

The utility model patent CN216021039U discloses a crown face balance measuring device in spinal column orthopedics for a shell, which comprises a vertical rod, wherein the surface of the vertical rod is fixedly connected with a horizontal connecting plate, the surface of the horizontal connecting plate is provided with a moving groove, the inner wall of the moving groove is in sliding connection with a fixing mechanism, the lower surface of the horizontal connecting plate is fixedly connected with a cushion block, the fixing mechanism comprises a sliding seat, the lower surface of the sliding seat is fixedly connected with a lower baffle, the lower surface of the lower baffle is fixedly connected with a locating nail, the connection between a cervical spinous process and the highest point of a bilateral iliac crest is carried out through the cooperation of a string and a wire reel, the angle formed between the midpoint of the connection and the vertical rod is measured by using a protractor, the connection and the midpoint of the connection between the cervical spinous process and the highest point of the bilateral iliac crest are conveniently determined, and the locating speed is improved by the fixing mechanism, and the cushion block is more stable in use.

However, the above solution has the following drawbacks:

1. the mechanical structure of the existing scheme has large volume, is not beneficial to rapid assembly in operation, and the supporting structure shields the operation visual field and almost loses the possibility of synchronous operation;

2. the prior proposal adopts the traditional mechanical structure to carry out evaluation measurement, the flexibility of the operation process is limited by mechanical connection, and the dynamic change in the operation process can not be synchronously adapted;

3. the length of the perpendicular bisector is limited by the length of the mechanical link and it affects the equilibrium stability of the device (the longer the link the more the center of gravity of the device is biased, the less stable);

4. the existing scheme is that a small bone nail is nailed into ilium in the human body fixing mode, and the fixing mode is an invasive and damaged mode, so that the infection risk is increased;

5. the existing scheme is characterized in that the fixing frames are hardware brackets, the skin of a human body is uneven, and the fixing frames cannot be completely attached to the skin, so that errors are generated in measurement and evaluation;

6. all of the above protocols were used only for coronal balance assessment of spinal deformities.

At present, no effective solution is proposed for solving the problems of complex structure, large equipment volume, inconvenient operation, invasive measurement, large measurement error, small application range and the like in the related technology.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a pelvis balance assessment device to solve the problems of complex structure, large equipment volume, inconvenient operation, invasive measurement, large measurement error, small application range and the like in the related art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a pelvis balance assessment device, comprising:

a shell unit;

a rotation shaft unit disposed inside the case unit;

the winding unit is connected with the rotating shaft unit, and two ends of the winding unit extend out of two sides of the shell unit;

the fixing units are arranged at two ends of the tape winding unit and are used for fixing the pelvis balance assessment device at the back upper ridge of the patient;

the laser unit is arranged in the shell unit and is positioned at the end part of the rotating shaft unit, and the laser unit and the rotating shaft unit are coaxially arranged, wherein the axial direction of the laser unit is perpendicular to the length direction of the tape coiling unit;

under the condition that the tape coiling unit stretches towards the two ends of the tape coiling unit, the tape coiling unit drives the rotating shaft unit to rotate, and the two ends of the tape coiling unit are fixed at the back upper ridge of the patient by the fixing unit; under the condition that the tape coiling unit is separated from the back upper ridge of the ilium of the patient, the rotating shaft unit drives the tape coiling unit to stretch.

In some of these embodiments, the shell element comprises:

a housing member in which the rotation shaft unit and the tape winding unit are disposed;

the first outlet elements are symmetrically arranged on two sides of the shell element and are used for enabling two ends of the tape winding unit to extend out of the shell element through the first outlet elements;

a first cover member detachably provided at a front end of the case member, the first cover member being internally provided with the laser unit for emitting laser light to the outside;

a second cover member detachably provided at a rear end of the housing member and connected with the rotation shaft unit;

and the accommodating groove element is arranged at the upper part of the shell element and is used for accommodating the rear end of the rotating shaft unit.

In some of these embodiments, the housing unit further comprises:

the first positioning element is arranged at the rear end of the first cover element and is used for being connected with the front end of the rotating shaft unit;

the second positioning element is arranged at the front end of the second cover element and is used for being connected with the rear end of the rotating shaft unit.

In some of these embodiments, the housing unit further comprises:

a first connection element provided at a front end of the case element;

a second connection element provided at a rear end of the case element;

the third connecting element is arranged at the rear end of the first cover element and is used for detachably connecting with the first connecting element;

and the fourth connecting element is arranged at the front end of the second cover element and is used for detachably connecting with the second connecting element.

In some of these embodiments, the housing unit further comprises:

baffle elements symmetrically disposed on both sides of the case element, and the first outlet element is located inside the baffle elements;

and the third outlet element is arranged on the side wall of the baffle element and positioned at the lower side of the first outlet element, and is used for the two ends of the tape coiling unit to extend out of the shell element through the third outlet element.

In some of these embodiments, the spindle unit includes:

a first rotating shaft element provided inside the case unit, the inside of the rotating shaft element being provided with the tape winding unit;

the second rotating shaft element is arranged in the first rotating shaft element and is coaxially arranged with the tape coiling unit;

the second outlet elements are arranged on two sides of the first rotating shaft element and are used for enabling two ends of the tape coiling unit to extend out of the first rotating shaft element through the second outlet elements;

and the reset element is arranged in the shell unit, is connected with the rear end of the second rotating shaft element and is used for continuously providing rotating force for the second rotating shaft element.

In some of these embodiments, the spindle unit further comprises:

and the bearing element is arranged at the end part of the second rotating shaft element and is connected with the shell unit.

In some of these embodiments, the tape unit comprises:

the winding element is arranged in the rotating shaft unit and connected with the rotating shaft unit, and two ends of the winding element extend out of the shell unit.

In some of these embodiments, the fixing unit includes:

and the fixing elements are arranged at two ends of the tape unit and are used for fixing the pelvis balance assessment device at the back upper ridge of the patient.

In some of these embodiments, the laser unit comprises;

the laser element is arranged in the shell unit and is positioned at the end part of the rotating shaft unit, and the laser element and the rotating shaft unit are coaxially arranged, wherein the axial direction of the laser element is perpendicular to the length direction of the tape coiling unit;

the power supply element is arranged in the laser element and connected with the laser element for supplying power to the laser element;

and the switching element is arranged on the surface of the shell unit, is connected with the laser element and is used for controlling the opening and closing of the laser element.

Compared with the prior art, the utility model has the following technical effects:

the pelvis balance assessment device is simple in structure, convenient to use and operate in operation, and can be used repeatedly for disinfection and sterilization; the device is used noninvasively, and cannot cause physical damage to patients; the dynamic evaluation can be performed in the operation, so that the operation efficiency is effectively improved; the method is not only suitable for pelvic coronary surface balance evaluation during pelvic deformity and repair, but also suitable for coronary surface balance evaluation of spinal deformity.

Drawings

FIGS. 1 a-1 b are schematic illustrations of a pelvic balance assessment apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration (one) of a shell element according to an embodiment of the utility model;

FIG. 3 is a schematic view of a spindle unit according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a tape unit according to an embodiment of the utility model;

FIG. 5 is a schematic view of a stationary unit according to an embodiment of the utility model;

FIG. 6a is a schematic diagram of a laser unit according to an embodiment of the utility model;

FIG. 6b is a frame diagram of a laser unit according to an embodiment of the utility model;

FIGS. 7 a-7 b are schematic diagrams (II) of a pelvic balance assessment apparatus according to an embodiment of the present utility model;

fig. 8 is a schematic view (two) of a housing unit according to an embodiment of the present utility model.

Wherein the reference numerals are as follows: 100. a shell unit; 101. a shell member; 102. a first outlet element; 103. a first cover member; 104. a second cover member; 105. a receiving slot member; 106. a first positioning element; 107. a second positioning element; 108. a first connecting element; 109. a second connecting element; 110. a third connecting element; 111. a fourth connecting element; 112. a baffle element; 113. a third outlet element;

200. a rotation shaft unit; 201. a first shaft element; 202. a second shaft member; 203. a second outlet element; 204. a reset element; 205. a bearing element;

300. a tape winding unit; 301. a tape element;

400. a fixing unit; 401. a fixing element;

500. a laser unit; 501. a laser element; 502. a power supply element; 503. a switching element.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described and illustrated below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments provided herein, are intended to be within the scope of the present application.

It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the embodiments described herein can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar terms herein do not denote a limitation of quantity, but rather denote the singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed or may include additional steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality"/"a number" as used herein refers to two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., "a and/or B" may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.

Example 1

This embodiment is an exemplary embodiment of the present utility model, and as shown in fig. 1a to 1b, a pelvic balance assessment apparatus includes a housing unit 100, a rotation shaft unit 200, a tape unit 300, a fixing unit 400, and a laser unit 500. Wherein the rotation shaft unit 200 is disposed inside the case unit 100; the tape coiling unit 300 is connected with the rotating shaft unit 200, and two ends of the tape coiling unit 300 extend out of two sides of the shell unit 100; the fixing units 400 are provided at both ends of the tape unit 300 for fixing the pelvic balance assessment apparatus at the posterior superior iliac spine of the patient; the laser unit 500 is disposed inside the case unit 100 and at an end of the rotation shaft unit 200, and the laser unit 500 is disposed coaxially with the rotation shaft unit 200, wherein an axial direction of the laser unit 500 is perpendicular to a length direction of the tape winding unit 300; under the condition that the tape coiling unit 300 stretches towards the two ends of the tape coiling unit, the tape coiling unit 300 drives the rotating shaft unit 200 to rotate, and the two ends of the tape coiling unit 300 are fixed at the back upper ridge of the patient by the fixing unit 400; in the case that the tape unit 300 is separated from the patient's iliac rear upper ridge, the rotation shaft unit 200 drives the tape unit 300 to stretch.

As shown in fig. 2, the housing unit 100 includes a housing member 101, a first outlet member 102, a first cover member 103, a second cover member 104, and a receiving groove member 105. Wherein the inside of the case member 101 is provided with a rotation shaft unit 200 and a tape winding unit 300; the first outlet elements 102 are symmetrically disposed at two sides of the housing element 101, and are used for two ends of the tape unit 300 to extend out of the housing element 101 through the first outlet elements 102; the first cover member 103 is detachably provided at the front end of the case member 101, and a laser unit 500 is provided inside the first cover member 103 for emitting laser light to the outside of the laser unit 500; the second cover member 104 is detachably provided at the rear end of the case member 101 and is connected with the rotation shaft unit 200; the receiving groove member 105 is provided at an upper portion of the case member 101 for receiving a rear end of the rotation shaft unit 200.

The case member 101 has a hollow cylindrical structure. In the case where the rotation shaft unit 200 is mounted to the case member 101, the front end of the rotation shaft unit 200 is not in contact with the inner wall of the case member 101, and the rear end of the rotation shaft unit 200 is in contact with the inner wall of the case member 101.

In some of these embodiments, the inner diameter of the shell member 101 remains constant from its forward end to its rearward end.

In some of these embodiments, the inner diameter of the shell member 101 decreases from its forward end to its rearward end.

In some of these embodiments, the inner cavity of the shell element 101 is convex in cross-section.

The first outlet members 102 are symmetrically disposed on both sides of the front end of the housing member 101, communicate with the inner cavity of the housing member 101, and are disposed in the axial direction of the housing member 101.

In some of these embodiments, the first outlet element 102 is arranged in a middle position on both sides of the housing element 101, i.e. the distance between the first outlet element 102 and the bottom of the housing element 101 is equal to the distance between the first outlet element 102 and the top of the housing element 101.

In some of these embodiments, the first outlet element 102 is arranged in a lower position on both sides of the housing element 101, i.e. the distance between the first outlet element 102 and the bottom of the housing element 101 is smaller than the distance between the first outlet element 102 and the top of the housing element 101.

The first cover element 103 is convex. Specifically, the first cover member 103 includes a first cover plate and an irradiation cylinder. The first cover plate is detachably connected with the housing element 101; the irradiation cylinder is disposed at the front end of the first cover plate and coaxially disposed with the first cover plate, and is used for mounting the laser unit 500.

Wherein the outer diameter of the first cover plate is equal to the outer diameter of the housing element 101.

In some of these embodiments, the illumination cartridge is not in communication with the first cover plate.

In some of these embodiments, the height of the illumination cartridge is greater than the thickness of the first cover plate.

Further, the first cover element 103 further comprises a first caulking ring provided at the rear end of the first cover plate for being in close contact with the case element 101 in the case where the first cover plate is detachably connected with the case element 101. I.e. the outer wall of the first grommet is in close contact with the inner wall of the front end of the shell element 101.

The second cover member 104 has a disc shape. Specifically, the second cover member 104 includes a second cover plate detachably connected to the case member 101.

Wherein, the external diameter of second apron equals with the external diameter of first apron.

Further, the second cover member 104 further includes a second caulking ring provided at a front end of the second cover plate for closely contacting the case member 101 in the case that the second cover plate is detachably connected to the case member 101. I.e. the outer wall of the second grommet is in close contact with the inner wall of the rear end of the shell element 101.

The receiving groove member 105 is provided at the rear end of the housing member 101 and communicates with the inside of the housing member 101 for receiving and fixing the rear end of the rotation shaft unit 200.

The receiving slot member 105 is rectangular, so that the rear end of the spindle unit 200 can only be slidably inserted into the receiving slot member 105.

In some of these embodiments, the receiving slot member 105 is disposed at an upper or lower portion of the rear end of the housing member 101.

Further, the housing unit 100 further comprises a first positioning element 106 and a second positioning element 107. Wherein, the first positioning element 106 is disposed at the rear end of the first cover element 103 and is used for being connected with the front end of the rotating shaft unit 200; the second positioning element 107 is disposed at a front end of the second cover element 104 and is configured to be connected to a rear end of the spindle unit 200.

The first positioning element 106 is disposed at the rear end of the first cover plate of the first cover element 103 and is located at the central position of the first cover plate, and the first positioning element 106 is disposed coaxially with the irradiation cylinder.

In some of these embodiments, the first positioning element 106 is a first positioning slot.

The second positioning element 107 is disposed at the front end of the second cover plate of the second cover element 104 and is located at the center of the second cover plate, and the second positioning element 107 is disposed coaxially with the first positioning element 106.

In some of these embodiments, the second positioning element 107 is a second positioning slot.

Further, the housing unit 100 further comprises a first connection element 108, a second connection element 109, a third connection element 110 and a fourth connection element 111. Wherein the first connection element 108 is arranged at the front end of the housing element 101; the second connection element 109 is provided at the rear end of the housing element 101; the third connecting element 110 is disposed at the rear end of the first cover element 103, and is used for detachably connecting with the first connecting element 108; a fourth connection member 111 is provided at the front end of the second cover member 104 for detachable connection with the second connection member 109.

The first connection member 108 is provided at a side wall of the front end of the case member 101.

In some of these embodiments, the number of first connection elements 108 is at least 1.

Preferably, the first connection elements 108 are 2 to 4.

In the case where the number of the first connection elements 108 is greater than 1, the plurality of first connection elements 108 are annularly distributed centering on the axis of the case element 101.

In some of these embodiments, the first connection element 108 is a first connection recess and/or a first connection bump.

In some of these embodiments, the radial dimension of the first connection element 108 is less than or equal to the wall thickness of the shell element 101.

The second connection member 109 is provided at a side wall of the rear end of the case member 101.

In some of these embodiments, the number of second connection elements 109 is at least 1.

Preferably, the number of second connection elements 109 is 2 to 4.

In case the number of second connection elements 109 is greater than 2, the number of second connection elements 109 are distributed in a ring shape centering on the axial direction of the case element 101.

In some of these embodiments, the second connection element 109 is a second connection groove and/or a second connection bump.

The third connecting elements 110 are disposed at the rear end of the first cover plate of the first cover element 103 and are in one-to-one correspondence with the first connecting elements 108.

Specifically, the number, distribution, and size of the third connecting elements 110 are the same as those of the first connecting elements 108.

In some of these embodiments, the third connecting element 110 is connected to the first thimble.

In some of these embodiments, the number of third connecting elements 110 is at least 1.

Preferably, the number of the third connecting elements 110 is 2 to 4.

In the case where the number of the third connecting elements 110 is greater than 1, the plurality of third connecting elements 110 are annularly distributed with the axis of the first cover element 103 as the center.

In some of these embodiments, the third connection element 110 is a third connection groove and/or a third connection bump.

The fourth connecting elements 111 are disposed at the front end of the second cover plate of the second cover element 104 and correspond to the second connecting elements 109 one by one.

Specifically, the number, distribution, and size of the fourth connection elements 111 are the same as those of the second connection elements 109.

In some of these embodiments, the fourth connecting element 111 is connected to the second thimble.

In some of these embodiments, the number of fourth connecting elements 111 is at least 1.

Preferably, the number of fourth connection elements 111 is 2 to 4.

In the case where the number of the fourth connection elements 111 is greater than 1, the plurality of fourth connection elements 111 are annularly distributed with the axis of the second cover element 104 as the center.

In some of these embodiments, the fourth connecting element 111 is a fourth connecting groove and/or a fourth connecting bump.

As shown in fig. 3, the spindle unit 200 includes a first spindle member 201, a second spindle member 202, a second outlet member 203, and a reset member 204. Wherein the first rotating shaft element 201 is disposed inside the case unit 100, and the tape winding unit 300 is disposed inside the rotating shaft element; the second rotating shaft element 202 is disposed inside the first rotating shaft element 201 and coaxially disposed with the tape winding unit 300; the second outlet elements 203 are disposed on two sides of the first shaft element 201, and are used for the two ends of the tape winding unit 300 to extend out of the first shaft element 201 through the second outlet elements 203; the reset element 204 is disposed inside the housing unit 100 and connected to the rear end of the second rotating shaft element 202, for continuously providing a rotating force to the second rotating shaft element 202.

Specifically, the first shaft member 201 is provided inside the case member 101; one end of the reset element 204 is disposed inside the accommodation groove element 105.

More specifically, both ends of the second shaft member 202 are connected to the first positioning member 106 and the second positioning member 107, respectively.

The first shaft member 201 is of a hollow structure, and houses the second shaft member 202 and the tape unit 300 therein. Further, the outer diameter of the first shaft member 201 is smaller than the inner diameter of the housing member 101.

In some of these embodiments, the first spindle element 201 is a spindle barrel.

The second shaft member 202 is disposed coaxially with the first shaft member 201, and both ends of the second shaft member 202 protrude from both ends of the first shaft member 201. Further, the outer diameter of the second shaft member 202 is smaller than the inner diameter of the first shaft member 201.

In some of these embodiments, in the case where the second shaft member 202 rotates, the first shaft member 201 rotates with the rotation of the second shaft member 202.

The tape winding unit 300 is sleeved with the second rotating shaft element 202 and can drive the second rotating shaft element 202 to rotate clockwise or anticlockwise; and the tape unit 300 rotates counterclockwise or clockwise by the action of the second rotation shaft member 202. Specifically, in the case that the tape winding unit 300 drives the second rotating shaft element 202 to rotate clockwise, the second rotating shaft element 202 may drive the tape winding unit 300 to rotate counterclockwise, so that the tape winding unit 300 is in a straightened state; in the case that the tape winding unit 300 drives the second rotating shaft element 202 to rotate anticlockwise, the second rotating shaft element 202 can drive the tape winding unit 300 to rotate clockwise, so that the tape winding unit 300 is in a straightened state.

In some of these embodiments, the second shaft member 202 is a rotating shaft.

In some of these embodiments, the second shaft member 202 is integrally formed with the first shaft member 201.

The second outlet members 203 are asymmetrically disposed on both sides of the first shaft member 201 and are disposed along the axial direction of the first shaft member 201. Specifically, one second outlet member 203 is disposed on the upper side wall of the first shaft member 201, and the other second outlet member 203 is disposed on the left side wall or the right side wall of the first shaft member 201. The purpose of this is that the second outlet element 203 can be aligned with the first outlet element 102 in case the first shaft element 201 is rotated.

One end of the reset element 204 is connected to at least the second shaft element 202, and the other end thereof is disposed inside the accommodating groove element 105. With the reset element 204, a reset power can be provided to the second rotating shaft element 202, so that the second rotating shaft element 202 drives the tape winding unit 300 to reversely rotate.

In some of these embodiments, the return element 204 is a torsion spring.

Further, the spindle unit 200 further comprises a bearing element 205. The bearing member 205 is provided at an end of the second rotation shaft member 202 and is connected to the housing unit 100.

Specifically, the bearing element 205 provided at the front end of the second rotation shaft element 202 is connected to the first positioning element 106, and the bearing element 205 provided at the rear end of the second rotation shaft element 202 is connected to the second positioning element 107.

More specifically, the inner edge surface of the bearing element 205 is rotatably connected to the outer edge surface of the second shaft element 202, and the outer edge surface of the bearing element 205 is connected to the inner edge surface of the first positioning element 106/the inner edge surface of the second positioning element 107.

As shown in fig. 4, the tape unit 300 includes a tape member 301. The tape member 301 is disposed inside the rotation shaft unit 200 and connected to the rotation shaft unit 200, and both ends of the tape member 301 protrude outside the case unit 100.

Specifically, the tape member 301 is sleeved on the second rotating shaft member 202, and two ends of the tape member sequentially extend out of the casing member 101 through the second outlet member 203 and the first outlet member 102.

Wherein both ends of the tape member 301 are located outside the case member 101 with the tape member 301 in an initial state.

In some of these embodiments, the width of the tape element 301 is less than or equal to the width of the first outlet element 102, the width of the second outlet element 203.

In some of these embodiments, the tape element 301 is a flexible tape.

As shown in fig. 5, the fixing unit 400 includes a fixing member 401. Fixation elements 401 are provided at both ends of the tape unit 300 for fixing the pelvic balance assessment apparatus at the posterior superior iliac spine of the patient.

Specifically, the fixing members 401 are provided at both ends of the tape member 301.

In some of these embodiments, the securing element 401 is removably disposed at both ends of the tape element 301.

In some of these embodiments, the securing elements 401 are fixedly disposed at both ends of the tape member 301.

In some of these embodiments, the securing element 401 is a sticker.

As shown in fig. 6a to 6b, the laser unit 500 includes a laser element 501, a power supply element 502, and a switching element 503. The laser element 501 is disposed inside the casing unit 100 and at an end of the spindle unit 200, and the laser element 501 is disposed coaxially with the spindle unit 200, wherein an axial direction of the laser element 501 is perpendicular to a length direction of the tape winding unit 300; the power supply element 502 is provided inside the laser element 501, and is connected to the laser element 501 for supplying power to the laser element 501; the switching element 503 is provided on the surface of the case unit 100, and is connected to the laser element 501 to control the switching of the laser element 501.

Specifically, the laser element 501 is disposed inside the irradiation cylinder of the first cover element 103 and coaxially disposed with the second rotation shaft element 202, and the axial direction of the laser element 501 is perpendicular to the length direction of the tape element 301; the switching element 503 is provided on the surface of the first cover element 103.

The length of the laser element 501 is smaller than the length of the irradiation barrel, i.e., the laser element 501 is not disposed protruding from the irradiation barrel. The purpose of this arrangement is to prevent the laser element 501 from protruding from the irradiation barrel and being damaged.

The power source element 502 may be provided integrally with the laser element 501 or may be provided separately from the laser element 501.

In some of these embodiments, the power element 502 is a lithium battery, a button cell, or the like.

The switching element 503 is a switch button for turning on or off the laser element 501.

The application method of the utility model is as follows:

placing the shell element 101 at the posterior superior iliac spine of the patient;

pulling the tape element 301, stretching the tape element 301 to both sides, securing the tape element 301 to the patient at the posterior superior iliac spine by the securing element 401;

the tape element 301 is maintained in a straightened state by the reverse force of the reset element 204;

the laser element 501 is turned on, and the laser element 501 is located at the perpendicular bisecting point of the tape element 301 and emits a horizontal straight line downwards, so that the operator can observe the position relationship of the line in the body midline in real time during operation to dynamically evaluate the balance of the pelvis coronal plane during operation.

The utility model has the advantages of simple structure, convenient use and convenient operation in operation, and can be used for disinfection and sterilization repeatedly; the device is used noninvasively, and cannot cause physical damage to patients; the dynamic evaluation can be performed in the operation, so that the operation efficiency is effectively improved; the method is not only suitable for pelvic coronary surface balance evaluation during pelvic deformity and repair, but also suitable for coronary surface balance evaluation of spinal deformity.

Example 2

This embodiment is a modified embodiment of embodiment 1.

As shown in fig. 7, the housing unit 100 further comprises a baffle element 112 and a third outlet element 113. Wherein the baffle member 112 is symmetrically disposed on both sides of the housing member 101, and the first outlet member 102 is disposed inside the baffle member 112; the third outlet member 113 is disposed on a side wall of the baffle member 112 and is located at a lower side of the first outlet member 102, so that two ends of the tape unit 300 extend out of the casing member 101 through the third outlet member 113.

The baffle member 112 is C-shaped or U-shaped, and has an upper end connected to an upper portion of the housing member 101 and located on an upper side of the first outlet member 102; the lower end of which is connected to the lower or bottom part of the housing element 101 and is located in the lower part of the first outlet element 102.

The width of the baffle member 112 is greater than the width of the first outlet member 102.

In some of these embodiments, the bottom of the baffle member 112 is planar for maintaining balance against the patient's skin with the housing unit 100 placed against the patient's posterior superior iliac spine.

In some of these embodiments, the baffle member 112 is integrally formed with the housing member 101.

The third outlet element 113 is disposed at the middle lower portion of the baffle element 112 and downstream of the first outlet element 102, for the tape element 301 to be disposed obliquely downward inside the baffle element 112, so that the tape element 301 located outside the third outlet element 113 can be abutted against the skin of the patient.

Preferably, the third outlet element 113 is provided at the bottom of the baffle element 112, and the tape element 301 is arranged against the skin of the patient by means of the downward pressure provided by the baffle element 112.

The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.

Claims (10)

1. A pelvic balance assessment apparatus, comprising:

a shell unit;

a rotation shaft unit disposed inside the case unit;

the winding unit is connected with the rotating shaft unit, and two ends of the winding unit extend out of two sides of the shell unit;

the fixing units are arranged at two ends of the tape winding unit and are used for fixing the pelvis balance assessment device at the back upper ridge of the patient;

the laser unit is arranged in the shell unit and is positioned at the end part of the rotating shaft unit, and the laser unit and the rotating shaft unit are coaxially arranged, wherein the axial direction of the laser unit is perpendicular to the length direction of the tape coiling unit;

under the condition that the tape coiling unit stretches towards the two ends of the tape coiling unit, the tape coiling unit drives the rotating shaft unit to rotate, and the two ends of the tape coiling unit are fixed at the back upper ridge of the patient by the fixing unit; under the condition that the tape coiling unit is separated from the back upper ridge of the ilium of the patient, the rotating shaft unit drives the tape coiling unit to stretch.

2. The pelvic balance assessment apparatus according to claim 1, wherein the housing unit comprises:

a housing member in which the rotation shaft unit and the tape winding unit are disposed;

the first outlet elements are symmetrically arranged on two sides of the shell element and are used for enabling two ends of the tape winding unit to extend out of the shell element through the first outlet elements;

a first cover member detachably provided at a front end of the case member, the first cover member being internally provided with the laser unit for emitting laser light to the outside;

a second cover member detachably provided at a rear end of the housing member and connected with the rotation shaft unit;

and the accommodating groove element is arranged at the upper part of the shell element and is used for accommodating the rear end of the rotating shaft unit.

3. The pelvic balance assessment apparatus according to claim 2, wherein the housing unit further comprises:

the first positioning element is arranged at the rear end of the first cover element and is used for being connected with the front end of the rotating shaft unit;

the second positioning element is arranged at the front end of the second cover element and is used for being connected with the rear end of the rotating shaft unit.

4. The pelvic balance assessment apparatus according to claim 2, wherein the housing unit further comprises:

a first connection element provided at a front end of the case element;

a second connection element provided at a rear end of the case element;

the third connecting element is arranged at the rear end of the first cover element and is used for detachably connecting with the first connecting element;

and the fourth connecting element is arranged at the front end of the second cover element and is used for detachably connecting with the second connecting element.

5. The pelvic balance assessment apparatus according to claim 2, wherein the housing unit further comprises:

baffle elements symmetrically disposed on both sides of the case element, and the first outlet element is located inside the baffle elements;

and the third outlet element is arranged on the side wall of the baffle element and positioned at the lower side of the first outlet element, and is used for the two ends of the tape coiling unit to extend out of the shell element through the third outlet element.

6. The pelvic balance assessment apparatus according to claim 1, wherein the spindle unit comprises:

a first rotating shaft element provided inside the case unit, the inside of the rotating shaft element being provided with the tape winding unit;

the second rotating shaft element is arranged in the first rotating shaft element and is coaxially arranged with the tape coiling unit;

the second outlet elements are arranged on two sides of the first rotating shaft element and are used for enabling two ends of the tape coiling unit to extend out of the first rotating shaft element through the second outlet elements;

and the reset element is arranged in the shell unit, is connected with the rear end of the second rotating shaft element and is used for continuously providing rotating force for the second rotating shaft element.

7. The pelvic balance assessment apparatus according to claim 6, wherein the spindle unit further comprises:

and the bearing element is arranged at the end part of the second rotating shaft element and is connected with the shell unit.

8. The pelvic balance assessment apparatus according to claim 1, wherein the tape unit comprises:

the winding element is arranged in the rotating shaft unit and connected with the rotating shaft unit, and two ends of the winding element extend out of the shell unit.

9. The pelvic balance assessment apparatus according to claim 1, wherein the fixation unit comprises:

and the fixing elements are arranged at two ends of the tape unit and are used for fixing the pelvis balance assessment device at the back upper ridge of the patient.

10. The pelvic balance assessment apparatus according to claim 1, wherein the laser unit comprises;

the laser element is arranged in the shell unit and is positioned at the end part of the rotating shaft unit, and the laser element and the rotating shaft unit are coaxially arranged, wherein the axial direction of the laser element is perpendicular to the length direction of the tape coiling unit;

the power supply element is arranged in the laser element and connected with the laser element for supplying power to the laser element;

and the switching element is arranged on the surface of the shell unit, is connected with the laser element and is used for controlling the opening and closing of the laser element.

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