CN212853662U

CN212853662U - Intraoperative osteotomy angle measurer

Info

Publication number: CN212853662U
Application number: CN202020496490.XU
Authority: CN
Inventors: 钟沃权
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-04-02
Anticipated expiration: 2030-04-07

Abstract

The utility model relates to an osteotomy angular surveying ware in art belongs to the medical instrument field, including curved bevel protractor and the sliding connection that has the angle scale mark two dipperstick on the bevel protractor, the dipperstick include with the slip removal cover that links to each other of bevel protractor and wear to locate the inside surface of removal cover has the chi body of length scale mark, the both ends of chi body are stretched out from the both ends of removal cover respectively, the rack with it links to each other to slide between the removal cover, the extension line of dipperstick length with the centre of a circle of bevel protractor is crossing. The utility model discloses have and to cut bone angle by the precision measurement, realize the effect of accurate record.

Description

Intraoperative osteotomy angle measurer

Technical Field

The utility model belongs to the technical field of medical instrument's technique and specifically relates to an osteotomy angular surveying ware in art is related to.

Background

Patients with kyphosis deformity are not rare clinically, and when kyphosis seriously affects the nerve function, the trunk balance or the appearance of the patients, the patients often need to be treated by spine surgery, and the spine osteotomy orthopedic operation is involved in the surgery. The spine osteotomy technology is performed for correcting patients with scoliosis and severe kyphosis, and mainly comprises the steps of performing wedge-shaped osteotomy on the kyphosis, namely cutting off a wedge-shaped bone block at the back of the spine, and finishing correction of spinal deformity when two osteotomy surfaces are involuntarily or corrected to be approximately parallel (when the two osteotomy surfaces are not coincidentally, the bone block/titanium mesh/artificial vertebral body are implanted between the two osteotomy surfaces as a support).

Accurately measure parameters such as a kyphosis angle, spinal balance and the like of a patient before an osteotomy operation, and enable the patient to be accurately osteotomy in the operation. Accurate osteotomy is a basic guarantee that good orthopedics is obtained.

However, in the existing osteotomy orthopedic operation process for patients, only the operation experience of doctors and the rough judgment of naked eyes are usually relied on, the operation is lack of standardization, accurate recording is difficult to carry out, the technology is difficult to standardize, and errors are easy to occur in the operation, so that the operation effect is influenced, and the improvement of the life quality of the patients is influenced/limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intraoperative osteotomy angular measurement ware, it has can the accurate measurement cut bone angle, realizes the effect of accurate record to prior art exists not enough.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an intraoperative osteotomy angular surveying ware, including curved bevel protractor and the sliding connection that has the angle scale mark two dipperstick on the bevel protractor, the dipperstick include with the bevel protractor slides the removal cover that links to each other and wears to locate the ruler body that the inside surface of removal cover has the length scale mark, the both ends of ruler body are stretched out from the both ends of removal cover respectively, the ruler body with slide between the removal cover and link to each other, the extension line of dipperstick length with the centre of a circle of bevel protractor is crossing.

By adopting the technical scheme, in the operation process, after osteotomy, one measuring ruler is used as a reference ruler and is attached to one side edge of the osteotomy part, the other measuring ruler is used as a movable ruler, the measuring ruler used as the movable ruler freely slides on the angle ruler and is attached to the other side edge of the osteotomy part, and finally, the included angle between the two measuring rulers is read through the angle scale line on the angle ruler, so that the accurate parameter of the osteotomy angle is obtained; meanwhile, the ruler body is connected with the movable sleeve in a sliding mode, and the osteotomy depth can be synchronously measured according to the position of the ruler body.

An intraoperative osteotomy goniometer can be placed at the vertebral malformation/planned osteotomy site prior to the osteotomy procedure to guide the osteotomy site and direction and predict the depth of the osteotomy.

The present invention may be further configured in a preferred embodiment as: the angle ruler comprises an inner side arc ruler and an outer side arc ruler which are opposite in parallel, the inner side arc ruler and the outer side arc ruler are arranged at intervals, two ends of the inner side arc ruler and two ends of the outer side arc ruler are connected through connecting blocks respectively, and the movable sleeve is located between the inner side arc ruler and the outer side arc ruler.

Through adopting above-mentioned technical scheme, through setting up the movable sleeve between inboard arc chi and outside arc chi to when reading data, avoid the movable sleeve to shelter from the scale mark, thereby be convenient for reading personnel to data.

The present invention may be further configured in a preferred embodiment as: and a clamping structure used for fixing the position of the movable sleeve is arranged between the movable sleeve and the angle ruler.

Through adopting above-mentioned technical scheme, when carrying out the reading, can be with the rigidity at removal cover place, thereby avoid bumping the position that removes the cover and make the removal cover because of the mistake and change to influence the accuracy of reading.

The present invention may be further configured in a preferred embodiment as: the clamping structure comprises a plurality of clamping teeth arranged side by side and located on the back of the inner arc ruler and/or the back of the outer arc ruler, and an elastic clamping piece fixed on the movable sleeve, wherein a clamping groove matched with the clamping teeth is formed in one side, facing the clamping teeth, of the elastic clamping piece, and the clamping teeth are clamped with the clamping groove in a free state of the elastic clamping piece.

Through adopting above-mentioned technical scheme, when removing the removal cover, break away from elastic clamping spare and latch, can remove the position of removing the cover, when removing the cover and moving required position department, with elastic clamping spare and latch looks joint to can be quick adjust the position of removing the cover.

The present invention may be further configured in a preferred embodiment as: the operation position of the elastic clamping part and the inner side arc ruler are arranged in a staggered mode.

Through adopting above-mentioned technical scheme, the operating personnel of being convenient for operates elasticity joint portion to realize breaking away from or the state of joint between messenger's elasticity joint portion and the latch.

The present invention may be further configured in a preferred embodiment as: the movable sleeve is connected with a jackscrew through threads.

Through adopting above-mentioned technical scheme, can be with the rigidity at chi body place to avoid the removal to appear in the in-process chi body of reading, thereby influence the accuracy of reading.

The present invention may be further configured in a preferred embodiment as: the tail end of the ruler body is provided with a stop block.

Through adopting above-mentioned technical scheme, when the chi body is passing the removal cover, make the tail end of the chi body can not enter into the inside of removing the cover to the chi body of avoiding packing into and removing the inside ruler body of cover from removing the cover and being close to the one end roll-off of angle chi centre of a circle.

To sum up, the utility model discloses a following at least one useful technological effect:

1. in the operation process, after osteotomy, one measuring scale is used as a reference scale and is attached to one side edge of the osteotomy part, the other measuring scale is used as a movable scale, the measuring scale used as the movable scale freely slides on the angle scale and is attached to the other side edge of the osteotomy part, and finally, the included angle between the two measuring scales is read through the angle scale marks on the angle scale, so that the accurate parameter of the osteotomy angle is obtained; meanwhile, the ulna body is connected with the movable sleeve in a sliding manner, so that the osteotomy depth can be synchronously measured according to the position of the ulna body;

2. the movable sleeve is arranged between the inner arc ruler and the outer arc ruler, so that the blockage of the measuring ruler to the angle scale mark can be reduced when data are read, and reading personnel can read the data conveniently;

3. an intraoperative osteotomy goniometer can be placed at the vertebral malformation/planned osteotomy site prior to the osteotomy procedure to guide the osteotomy site and direction and predict the depth of the osteotomy.

Drawings

FIG. 1 is a schematic front view of an intraoperative osteotomy goniometer;

FIG. 2 is a schematic view of the construction of the intraoperative osteotomy goniometer;

FIG. 3 is a schematic view of the internal structure of the case;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure, 1, an angle ruler; 11. an inner arc ruler; 12. an outer arc ruler; 13. connecting blocks; 14. a tooth socket; 15. clamping teeth; 2. measuring a scale; 21. moving the sleeve; 211. ear holding; 22. a ruler body; 221. a stopper; 23. a box body; 231. perforating; 24. a clamping block; 241. a card slot; 242. a baffle ring; 25. carrying out top thread; 26. a telescoping spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses an intraoperative osteotomy angular measurement ware, including curved bevel protractor 1 and two dipperstick 2 of sliding connection on bevel protractor 1, dipperstick 2's length direction's extension line all intersects with bevel protractor 1's centre of circle point. When the position of the measuring tape 2 on the angle ruler 1 changes, the extension line of the length direction of the measuring tape 2 always intersects with the center point of the angle ruler 1.

The angle ruler 1 comprises an inner side arc ruler 11 and an outer side arc ruler 12 which are oppositely arranged in parallel, and the radian and the length of the inner side arc ruler 11 and the outer side arc ruler 12 are the same. The inner arc ruler 11 and the outer arc ruler 12 are arranged at intervals. The two ends of the inner side arc ruler 11 and the outer side arc ruler 12 are respectively connected through a connecting block 13, and the connecting block 13 is respectively fixedly connected with the inner side arc ruler 11 and the outer side arc ruler 12. One side surface that inboard arc chi 11 and outside arc chi 12 deviate from mutually is inboard arc chi 11 and outside arc chi 12 front respectively, and one side surface that inboard arc chi 11 and outside arc chi 12 are relative is inboard arc chi 11 and outside arc chi 12 back respectively.

The front surface of the inner side arc ruler 11 is provided with angle scale marks which are arranged along the arc length of the inner side arc ruler 11. The zero degree line in the angle scale lines is opposite to the middle position of the arc length of the inner side arc ruler 11. Furthermore, the front face of the outer arc ruler 12 is also provided with angle scale marks, so that the operator can conveniently read the angle scale marks.

The measuring scale 2 comprises a moving sleeve 21 which is connected between the inner arc ruler 11 and the outer arc ruler 12 in a sliding way and a ruler body 22 which is arranged inside the moving sleeve 21 in a penetrating way and is connected with the moving sleeve 21 in a sliding way, wherein the extension line of the length direction of the moving sleeve 21 is crossed with the center point of the angle ruler 1. The movable sleeve 21 is respectively provided with an ear holding 211 which is sleeved on the inner arc ruler 11 and the outer arc ruler 12 and is fixedly connected with the movable sleeve 21, and the side walls of the two sides of the movable sleeve 21 facing the inner arc ruler 11 and the outer arc ruler 12 are respectively provided with an ear holding 211. The inner hole of the holding ear 211 is an arc hole matched with the arcs of the inner arc ruler 11 and the outer arc ruler 12. The ear 211 of embracing of suit at inboard arc chi 11 slides with inboard arc chi 11 and links to each other, and the ear 211 of embracing of suit at outside arc chi 12 slides with outside arc chi 12 and links to each other.

The length direction of the blade 22 is the same as the length direction of the movable sleeve 21. The length of the blade 22 is longer than that of the moving sleeve 21, so that both ends of the blade 22 protrude from both ends of the moving sleeve 21, respectively. One end of the ruler body 22 facing the center of the angle ruler 1 is the head end of the ruler body 22, and the other end is the tail end of the ruler body 22. A stopper 221 formed integrally with the blade 22 is provided at the rear end of the blade 22, and the sectional area of the stopper 221 is larger than that of the inner hole of the moving sleeve 21 so that the stopper 221 cannot pass through the moving sleeve 21.

One side surface of the ruler body 22 is provided with length scale marks arranged along the length direction of the ruler body 22. A jack 25 is provided on a side wall surface of the movable sleeve 21 on one side toward the inner arcuate blade 11, and penetrates through a side wall of the movable sleeve 21 and is screwed into the movable sleeve 21, and the jack 25 is rotated to move the jack 25 in the direction of the inside of the movable sleeve 21, so that the jack 25 presses the blade 22, thereby fixing the position of the blade 22.

The length scale marks on the scale body 22 are not limited to be provided on one surface, and the length scale marks may be provided on both the front and back surfaces of the scale body 22.

The back that lies in inboard arc chi 11 and the back of outside arc chi 12 all is provided with a plurality of tooth's socket 14 of arranging the setting along the arc length of inboard arc chi 11 and outside arc chi 12, thereby makes the back of inboard arc chi 11 and the back of outside arc chi 12 form a plurality of latches 15 of arranging the setting along the arc length of inboard arc chi 11 and outside arc chi 12 through tooth's socket 14.

Referring to fig. 3 and 4, a hollow box 23 is fixed on the moving sleeve 21, and the box 23 is fixed on a side wall of the moving sleeve 21 facing the connecting block 13. The side walls of the box body 23 facing the inner arc ruler 11 and the outer arc ruler 12 are respectively provided with a through hole 231 penetrating through the side wall of the box body 23. A latch 24 is slidably connected inside the through hole 231, one side of the latch 24 extends into the box 23 through the through hole 231, and the other side of the latch 24 extends out of the box 23.

The side wall surface of the fixture block 24 at one side outside the box body 23 is provided with a clamping groove 241 matched with the clamping tooth 15. When the latch 24 is opposite to the latch 15, the latch 15 can be latched inside the latch 24, so as to fix the position of the measuring ruler 2.

A stop ring 242 that cannot pass through the through hole 231 is fixed to one end of the latch 24 that extends into the box 23, and the stop ring 242 is integrally formed with the latch 24. A telescopic spring 26 is arranged inside the box body 23, and the telescopic spring 26 is positioned between the two clamping blocks 24. Two ends of the extension spring 26 are fixedly connected with the two clamping blocks 24 respectively. The number of the extension springs 26 is two in the present embodiment. When the extension spring 26 is in a free state, the clamping grooves 241 of the two clamping blocks 24 are respectively connected with the clamping teeth 15 on the inner arc ruler 11 and the outer arc ruler 12. When exerting force and making two fixture blocks 24 be close to mutually to two fixture blocks 24, expanding spring 26 atress compression to make two fixture blocks 24 break away from with inboard arc chi 11 and outside arc chi 12 respectively, thereby make dipperstick 2 can continue to remove on angle chi 1.

The gullets 14 may be formed only on the back surfaces of the inner arcuate blade 11 and the outer arcuate blade 12. If the tooth grooves 14 are formed only on the back surface of the inner arc ruler 11 or the tooth grooves 14 are formed only on the back surface of the outer arc ruler 12, the number of the through holes 231 and the locking blocks 24 on the box body 23 is one and is opposite to the inner arc ruler 11 or the outer arc ruler 12 formed with the tooth grooves 14. One end of the extension spring 26 is connected to the latch 24, and the other end is connected to the side wall of the case 23 opposite to the opening 231.

One end of the box body 23 far away from the center of the angle ruler 1 extends out of one end of the movable sleeve 21 far away from the center of the angle ruler 1. One end of the clamping block 24 close to the circle center of the angle ruler 1 is opposite to the inner arc ruler 11 and the outer arc ruler 12, and one end of the clamping block 24 far away from the circle center of the angle ruler 1 extends out of the outer sides of the inner arc ruler 11 and the outer arc ruler 12 to be exposed, so that the clamping block 24 can be conveniently operated by medical staff.

The implementation principle of the embodiment is as follows: after the osteotomy is performed, before the measurement, the distal ends of the blade bodies 22 in the two measurement blades 2 are brought into contact with each other, the distal ends of the blade bodies 22 are inserted into the inside of the osteotomy, one of the two measurement blades 2 is fitted to one side edge of the osteotomy as a reference blade, and the other measurement blade 2 is used as a movable blade. The measuring scale 2 as the moving scale is moved and is attached to the other side edge of the intercepted part, and the included angle value between the two measuring scales 2 is read, so that the angle of the osteotomy can be measured.

Meanwhile, the intraoperative osteotomy angle measurer is adopted, and can be arranged at the vertebral malformation position/planned osteotomy position before osteotomy operation, so as to guide the osteotomy position and direction, and can predict the osteotomy depth through the length of the tail end of the ruler body 22 extending out of the movable sleeve 21.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An intraoperative osteotomy angular measurement device, characterized in that: including curved angle scale (1) and the sliding connection that has the angle scale mark two dipperstick (2) on angle scale (1), dipperstick (2) include with removal cover (21) that angle scale (1) slip links to each other and wear to locate the inside surface of removal cover (21) has chi body (22) of length scale mark, the both ends of chi body (22) are stretched out from the both ends of removing cover (21) respectively, chi body (22) with it links to each other to slide between removal cover (21), the extension line of dipperstick (2) length with the centre of a circle of angle scale (1) is crossing.

2. The intraoperative osteotomy goniometer of claim 1, wherein: angle square (1) is including parallel relative inboard arc chi (11) and outside arc chi (12), the interval sets up between inboard arc chi (11) and outside arc chi (12), the both ends of inboard arc chi (11) and outside arc chi (12) link to each other through connecting block (13) respectively, it is located between inboard arc chi (11) and outside arc chi (12) to remove cover (21).

3. The intraoperative osteotomy goniometer of claim 2, wherein: a clamping structure used for fixing the position of the movable sleeve (21) is arranged between the movable sleeve (21) and the angle ruler (1).

4. The intraoperative osteotomy goniometer of claim 3, wherein: the clamping structure comprises a plurality of clamping teeth (15) arranged side by side and located on the back of the inner arc ruler (11) and/or the back of the outer arc ruler (12) and an elastic clamping piece fixed on the movable sleeve (21), wherein a clamping groove (241) matched with the clamping teeth (15) is formed in one side, facing the clamping teeth (15), of the elastic clamping piece, and the clamping teeth (15) are clamped with the clamping groove (241) in a free state of the elastic clamping piece.

5. The intraoperative osteotomy goniometer of claim 4, wherein: the operation part of the elastic clamping part and the inner side arc ruler (11) are arranged in a staggered mode.

6. The intraoperative osteotomy goniometer of claim 1, wherein: the movable sleeve (21) is connected with a jackscrew (25) through threads.

7. The intraoperative osteotomy goniometer of claim 1, wherein: the tail end of the ruler body (22) is provided with a stop block (221).