CN107595389A - A kind of tracer and its attachment structure for bone surgery - Google Patents
A kind of tracer and its attachment structure for bone surgery Download PDFInfo
- Publication number
- CN107595389A CN107595389A CN201710970763.2A CN201710970763A CN107595389A CN 107595389 A CN107595389 A CN 107595389A CN 201710970763 A CN201710970763 A CN 201710970763A CN 107595389 A CN107595389 A CN 107595389A
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- tracer
- connector
- connection structure
- connecting piece
- patient
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Abstract
The present invention relates to technical field of medical instruments, and in particular to a kind of attachment structure for bone surgery tracer, including：Connector (1), top form a cell body (2) for being used to fix tracer；Several ducts (3), are molded on the connector (1), and are penetrated from the top of the connector (1) to lower surface；Fixture (4), set through the duct (3), and the lower end of the fixture (4) is fixed in the bony structure of patient.Directly fixed the invention provides a kind of tracer and patient's bony structure, fixed form is solid and reliable, to ensure the attachment structure for bone surgery tracer of navigation accuracy.Present invention also offers a kind of tracer for bone surgery, including described attachment structure.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a tracer for an orthopedic operation and a connecting structure thereof.
Background
Spinal surgical navigation typically acquires patient images pre-or intra-operatively, with image-guided surgery implemented after intra-operative registration. The currently common image guidance modes include two-dimensional fluoroscopy guidance, CT guidance, and intra-operative cone-beam CT guidance. Spinal surgical navigation tracks patient displacement or bone structural changes due to any cause during surgery through a tracer. Usually, the tracer is firmly fixed near the operative bone structure of the patient, the corresponding intraoperative image under the condition is collected, and the navigation system realizes the image-guided operation on the operative structure through the position of the tracer. The fixation method of the tracer is usually different depending on the surgical approach, minimally invasive surgery is generally performed by percutaneous fixation, and open surgery is performed by directly clamping or anchoring the tracer at a location adjacent to the bone structure.
The tracer of open operation includes non-metallic tracer body and metal clamp, and the effect of tracer body is for navigation system provides a coordinate system origin in the operation process, and the effect of metal clamp is connected tracer body and patient's backbone, forms a stable rigid connection, prevents that operation in-process coordinate system origin from removing, causes the operation error. When the tracer is used, an opening of 3-4cm is formed in the spine of a patient, all soft tissues are peeled off to expose the bony structures of the whole spine, and then the metal clip is inserted into the opening and clamped on the spine protrusion, so that the aim of fixing the tracer body is fulfilled. In the structure, because an opening allowing the metal clip to extend into is required to be formed on the body of the patient, the opening is formed in addition to the necessary opening, and the pain and infection probability of the patient are increased. In addition, the metal clip is made of metal, so that the cost is high and the processing technology is complex; moreover, the metal clip can generate development during X-ray fluoroscopy, which affects the development of the patient's skeleton, and can also generate artifacts, which affect the fluoroscopy effect. In addition, the top of metal clip is fixed through screw and tracer body in the operation process, if the screw precision is not enough, perhaps inefficacy after long-term the use, will cause the metal clip can't take out from patient's skeleton, influences the process of operation, even patient's recovery.
In order to solve the above technical problems, chinese patent document CN106667578A discloses a non-invasive fixing device for a spinal surgery navigation tracer, which comprises a reference frame, a base adhesive layer, universal connecting rod, thread bush and fixed band, trapezoidal reference frame four corners upper end is equipped with navigation tracer and connects the ball socket, L shape universal connecting rod horizon bar one end is articulated with trapezoidal reference frame, the elbow ball end of L shape universal connecting rod vertical pole inserts in the external screw thread ball socket at rectangle base center, form ball socket normal running fit, rectangle base baseplane is the cambered surface, the middle part bottom surface is equipped with vertically link up the band recess, install bar fixed band buckle on the plane on the fore-and-aft both ends of rectangle base, bar fixed band is fixed in the band recess below the base, unable adjustment base bonds the glue film on the sand grip on band recess both sides, constitute spinal surgery navigation tracer's the noninvasive fixing device. The radian bottom surface of the fixed base is matched with the back contour of a human body, and the medical adhesive is firmly fixed with the body surface of the back of a patient. Fixed band length can be adjusted wantonly, and the intermediate part firmly combines with the base, and both ends can be bound with the operation table, or at patient body surface locking, and the fixed band of bar has adsorption, can make the fixed band of bar adsorb at patient's body surface to reduce patient's skin mobility, ensure the navigation accuracy. Although not increasing extra wound to the patient in the above-mentioned scheme, but the band is fixed through adsorption and patient's body surface, and unable adjustment base utilizes medical glue and patient back body surface fixed, adsorbs and pastes fixed mode insecure, and any removal or any accident of patient or doctor in the operation process can lead to the position of band and unable adjustment base to change, and then leads to the position change of tracer, influences the navigation accuracy.
Disclosure of Invention
Therefore, the invention aims to overcome the defects that the fixing mode of the tracer and the body surface of the patient is not firm and the position is easy to deviate so as to influence the navigation precision in the prior art, thereby providing the tracer for the orthopedic operation and the connection structure thereof, wherein the tracer and the bone structure of the patient are directly fixed in a firm and reliable mode so as to ensure the navigation precision.
In order to solve the above technical problems, the present invention provides a connection structure for an orthopedic surgery tracer, comprising:
the top of the connecting piece is provided with a groove body for fixing the tracer;
the pore channels are formed on the connecting piece and penetrate from the upper part to the lower surface of the connecting piece;
the fixing piece penetrates through the pore passage, and the lower end of the fixing piece is fixed on a bony structure of a patient.
The connecting structure for the orthopedic surgery tracer is characterized in that an included angle between the axis of the pore channel and the axis of the connecting piece is an acute angle, and the lower end of the fixing piece penetrating through the pore channel is intersected at a certain point.
The fixed point of the connecting structure for the orthopedic operation tracer is 1.5-2.5cm away from the lower surface of the connecting piece.
A connection structure for bone surgery tracer on the vertical section of connecting piece, a plurality of the pore distributes the both sides of the axis of connecting piece, and is located a plurality of with one side the pore with the contained angle of the axis of connecting piece increases in proper order.
The connecting structure for the orthopedic surgery tracer is characterized in that a guide fixing piece is further formed at the upper part of the connecting piece and at the position corresponding to the pore channel, and the fixing piece sequentially penetrates through the guide fixing piece and the pore channel and then is fixed on a bone structure of a patient.
The connecting structure for the orthopedic surgery tracer is characterized in that the guide fixing piece and the connecting piece are integrally formed, and the interior of the guide fixing piece is hollow.
The connecting structure for the orthopedic surgery tracer comprises a guide fixing piece, wherein the outer diameter of the guide fixing piece is 4.0-5.0mm, and the inner diameters of the guide fixing piece and the pore channel are 1.5-2.0 mm.
The connecting structure for the orthopedic surgery tracer is characterized in that an inclined plane is further formed on the lower surface of the connecting piece and penetrates through the axis of the connecting piece.
The connecting structure for the orthopedic surgery tracer is characterized in that the connecting piece is made of photosensitive resin and peek resin, and the fixing piece is a Kirschner wire.
The invention also provides a tracer for the orthopedic surgery, which comprises the connecting structure.
The technical scheme of the invention has the following advantages:
1. the invention provides a connecting structure for a tracer used for an orthopedic operation, which comprises a connecting piece, wherein a groove body used for fixing the tracer is formed at the top of the connecting piece; the pore channels are formed on the connecting piece and penetrate from the upper part to the lower surface of the connecting piece; the fixing piece penetrates through the pore passage, and the lower end of the fixing piece is fixed on a bony structure of a patient. Firstly, the tracer is directly fixed with the connecting piece through a groove body formed at the top of the connecting piece, and the fixing and mounting modes are simple and reliable; and then the fixing piece passes through a pore channel formed on the connecting piece and is directly fixed on the bony structure of the patient, so that the tracer is firmly connected with the bony structure of the patient, and compared with the prior art in which the tracer is adsorbed and stuck to the skin, the direct fixation of the fixing piece and the bony structure is firmer, the position deviation of the tracer caused by various accidents is prevented, and the navigation precision is further ensured.
2. According to the connecting structure for the orthopedic surgery tracer, the included angle between the axis of the pore channel and the axis of the connecting piece is an acute angle, and the lower ends of the fixing pieces penetrating through the pore channel are intersected at a certain point. The fixing pieces penetrate through the pore passages on the connecting piece and then intersect at one point, because the fixing pieces can be fixed with the bony structures after penetrating through the skin of a patient, the skin has certain elasticity and contractility, and the fixing pieces are easy to shift in position under the environment.
3. According to the connecting structure for the orthopedic surgery tracer, the fixed point is 1.5-2.5cm away from the lower surface of the connecting piece. The purpose of this is to adapt to the change of the weight of the patient, when the weight of the patient is light, the fixed point position can be selected to be 1.5cm on the lower surface of the connecting piece due to less subcutaneous fat; when the patient is heavy, the fat layer is thick due to much subcutaneous fat, and in order to firmly fix the fixing piece on the bony structure of the patient, the fixed point position needs to be selected at 2.5cm of the lower surface of the connecting piece.
4. According to the connecting structure for the orthopedic surgery tracer, on the vertical section of the connecting piece, the plurality of pore channels are distributed on two sides of the axis of the connecting piece, and included angles between the plurality of pore channels located on the same side and the axis of the connecting piece are sequentially increased. The purpose of this is to distribute several fixing elements as much as possible over different positions of the connecting element, so that the connecting element is more firmly fixed to the bony structure of the patient.
5. The connecting structure for the orthopedic surgery tracer provided by the invention has the advantages that the outer diameter of the guide fixing piece is 4.0-5.0mm, and the inner diameters of the guide fixing piece and the pore channel are both 1.5-2.0 mm. The selection of the inner diameter of the pore canal is determined based on the bone structure of the patient, so that not only is stable and fixed, but also the damage to the patient is ensured to be minimum; the outer diameter of the guide fixture is selected based on the smallest outer protrusion and the most stable fixation, avoiding the displacement of the tunnel.
6. The connecting structure for the orthopedic surgery tracer provided by the invention is characterized in that an inclined plane is further formed on the lower surface of the connecting piece, and the inclined plane penetrates through the axis of the connecting piece. The connecting piece is designed to be an inclined plane, so that the problems are avoided, and the lower surface of the connecting piece is accurately attached to the skin of a patient.
7. The tracer for the orthopedic surgery provided by the invention can firmly fix the tracer and the bony structure of a patient through the connecting piece and the plurality of fixing pieces, and has the advantages of simple and reliable fixing mode and wide application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first schematic view of a connection structure for an orthopedic tracer according to the present invention;
FIG. 2 is a second schematic view of the connection structure for the orthopedic tracer according to the present invention;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a cross-sectional view of fig. 1.
Description of reference numerals:
1-a connector; 2-a groove body; 3-a pore channel; 4-a fixing piece; 5-inclined plane; 6-guiding a fixing piece; 21-a limiting part.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A specific embodiment of the connection structure for the orthopedic operation tracer shown in fig. 1-4 comprises a connection piece 1 with a groove body 2 formed at the top for fixing the tracer, wherein a plurality of pore canals 3 are formed on the connection piece 1, the pore canals 3 are communicated from the upper part to the lower surface of the connection piece 1 and pass through the pore canals 3, and the lower end of the connection piece is fixed on a fixing piece 4 on the bony structure of the patient.
Connecting piece 1 is the cylinder in this embodiment, is convenient for deposit and disinfect, and the material is photosensitive resin and peek resin, has safety, nontoxic, no allergen, repeatedly usable's characteristic, and these two kinds of resins still can be used to 3D printing simultaneously, can be according to patient's particular case quick, print the connecting piece 1 of preparation different shapes and size alone. The groove body 2 is formed in the center of the top of the connecting piece 1 and can be square or round and the like, the groove body is in a cross shape matched with the mounting block at the bottom of the tracer, a limiting part 21 for limiting is further formed on the edge of one side of the cross shape, and the size of the groove body 2 is preferably matched with the mounting block at the bottom of the tracer in an interference fit mode so as to ensure the mounting firmness; when the tracer is installed, the installation block of the tracer is aligned with the tank body 2 and pressed downwards with force. And the lower surface of the connecting piece 1 is also provided with an inclined surface 5, and the inclined surface 5 penetrates through the axis of the connecting piece 1. The inclined surface 5 is formed by cutting off a part of the bottom of the connecting piece 1, namely, cutting is carried out along the side wall of the connecting piece 1 in an inclined downward direction, the cutting surface is intersected with the axis of the connecting piece 1, the cutting area and the inclined angle can be determined according to actual requirements, and the connecting pieces 1 with different specifications are suitable for different operation positions of patients.
As a specific embodiment, a plurality of portholes 3 extend downwards from the upper end of the top and side of the connector 1, respectively, until they exit from the bottom. The duct 3 is formed at any position of the top of the connecting piece 1 except the groove body 2, preferably, a plurality of ducts 3 are arranged at the top of the connecting piece 1 in a diagonal manner, and at least one duct 3 is correspondingly formed at the side part of the connecting piece 1. Connecting piece 1 through on its diagonal vertical section, a plurality of 3 symmetric distribution in pore are in the both sides of connecting piece 1's axis, pore 3's axis with contained angle between connecting piece 1's the axis is the acute angle, and is located a plurality of with one side pore 3 with the contained angle of connecting piece 1's axis increases in proper order, promptly in same vertical section, and a plurality of pore 3 is located different positions department, keeps away from gradually from the axis direction that is close connecting piece 1 to make a plurality of mounting 4 pass connecting piece 1's different positions to the at utmost, guarantee the fastness that connecting piece 1 and patient's bony structure are connected. As shown in fig. 4, the lower ends of the fixing members 4 passing through the porthole 3 meet at a point which is 1.5-2.5cm from the lower surface of the connecting member 1. All the fixing pieces 4 are intersected at the same point of the bony structure of the patient, and the elbow detents are formed between the fixing pieces, so that a small amount of displacement can not occur due to the flexibility of the skin, and the fixation is more reliable.
A guide fixing piece 6 is further formed at the upper part of the connecting piece 1 and at a position corresponding to the inlet of the pore passage 3, the guide fixing piece 6 extends out of the connecting piece 1, the extending length can be set according to requirements, the guide fixing piece and the connecting piece 1 can be integrally formed, and the interior of the guide fixing piece is hollow so as to allow the fixing piece 4 to pass through; the fixing part 4 passes through the guide fixing part 6 and the duct 3 in sequence and then is fixed on the bony structure of the patient. Specifically, the outer diameter of the guiding fixing member 6 is 4.0-5.0mm, and the inner diameters of the guiding fixing member 6 and the duct 3 are both 1.5-2.0 mm. The guiding fixing piece 6 not only plays a guiding role in the installation of the fixing piece 4, but also plays a certain protection role in the pore canal 3. In this embodiment, the fixing member 4 is a k-wire.
A tracer for orthopedic surgery comprises the connecting structure, a tracer body and a supporting frame, wherein the upper ends of four corners of the supporting frame are provided with tracer body connecting ball sockets, and the tracer body is fixedly connected with the supporting frame through the connecting ball sockets; x-shaped supporting ribs are fixed to diagonal angles in the supporting frame, an installation portion is formed in the lower portion of the center of the cross portion of the X-shaped supporting ribs, the supporting frame is fixed through the installation portion and a groove body of the connecting structure, and therefore reliable fixing of the tracer body and a patient bony structure is achieved, and navigation accuracy is guaranteed.
When using the tracer to carry out the operation, at first will pass through the connection ball socket on the support frame with the tracer body rather than being connected fixedly, then be connected fixedly with the cell body of the installation department of support frame through the bottom and connecting piece, place the connection structure who connects again near the bony structure that the patient needs the operation, insert the pore of connecting piece through the direction mounting with the kirschner wire at last to finally fix on patient's bony structure.
The connecting structure of the invention can be used for spinal surgery and other orthopedic surgeries.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A connection structure for an orthopedic procedure tracer, comprising:
the top of the connecting piece (1) is provided with a groove body (2) for fixing the tracer;
the pore canals (3) are formed on the connecting piece (1) and penetrate from the upper part to the lower surface of the connecting piece (1);
the fixing piece (4) penetrates through the pore canal (3), and the lower end of the fixing piece (4) is fixed on a bony structure of a patient.
2. The connection structure for an orthopaedic tracer according to claim 1, wherein the angle between the axis of the bore (3) and the axis of the connector (1) is acute, and the lower ends of the fixing (4) passing through the bore (3) meet at a certain point.
3. The connection structure for an orthopaedic surgical tracer according to claim 2, wherein the pointing point is 1.5-2.5cm from the lower surface of the connector (1).
4. A connection structure for an orthopaedic surgical tracer according to any one of claims 1-3, characterised in that, in a vertical section of the connector (1), a number of said holes (3) are distributed on both sides of the axis of the connector (1), and the angles between the holes (3) located on the same side and the axis of the connector (1) increase in sequence.
5. The connection structure for an orthopedic surgery tracer according to any one of claims 1-4, characterized in that a guiding fixture (6) is further formed at the upper part of the connector (1) at a position corresponding to the hole (3), and the fixture (4) is fixed on the bony structure of the patient after passing through the guiding fixture (6) and the hole (3) in sequence.
6. The connection structure for an orthopaedic surgical tracer according to claim 5, wherein the guiding fixture (6) is integrally formed with the connector (1) and has a hollow interior.
7. The connection structure for an orthopaedic tracer according to claim 6, wherein the outer diameter of the guiding fixture (6) is 4.0-5.0mm, and the inner diameters of the guiding fixture (6) and the tunnel (3) are each 1.5-2.0 mm.
8. The connection structure for an orthopaedic surgical tracer according to any one of claims 1 to 7, wherein a slope (5) is further formed at the lower surface of the connector (1), the slope (5) passing through the axis of the connector (1).
9. The connection structure for an orthopaedic tracer according to any one of claims 1 to 8, wherein the connector (1) is of photosensitive resin and peek resin, and the fixing member (4) is a Kirschner wire.
10. Tracer for use in orthopaedic surgery, characterized in that it comprises a connection structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970763.2A CN107595389A (en) | 2017-10-18 | 2017-10-18 | A kind of tracer and its attachment structure for bone surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970763.2A CN107595389A (en) | 2017-10-18 | 2017-10-18 | A kind of tracer and its attachment structure for bone surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107595389A true CN107595389A (en) | 2018-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710970763.2A Withdrawn CN107595389A (en) | 2017-10-18 | 2017-10-18 | A kind of tracer and its attachment structure for bone surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107595389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217714A1 (en) * | 2020-04-26 | 2021-11-04 | 深圳市鑫君特智能医疗器械有限公司 | Surgical guide plate, three-dimensional model and manufacturing and construction method, computer, and storage medium |
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| US20040102792A1 (en) * | 2002-08-09 | 2004-05-27 | Sarin Vineet Kumar | Non-imaging tracking tools and method for hip replacement surgery |
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| CN104799933A (en) * | 2015-03-18 | 2015-07-29 | 清华大学 | Movement compensation method of surgical robot for positioning and guiding for bone surgery |
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| CN106618755A (en) * | 2016-08-18 | 2017-05-10 | 首都医科大学附属北京地坛医院 | Percutaneous navigation guide board combined with body position fixation device and preparation method thereof |
| CN106667578A (en) * | 2017-01-10 | 2017-05-17 | 北京积水潭医院 | Noninvasive fixed device used in spinal surgical navigation tracer |
| CN106943197A (en) * | 2017-04-05 | 2017-07-14 | 闻泰医疗科技（上海）有限公司 | A kind of vertebral column minimally invasive based on digital orthopaedics enters to follow closely localization method and device |
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2017
- 2017-10-18 CN CN201710970763.2A patent/CN107595389A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040102792A1 (en) * | 2002-08-09 | 2004-05-27 | Sarin Vineet Kumar | Non-imaging tracking tools and method for hip replacement surgery |
| CN101697869A (en) * | 2009-10-19 | 2010-04-28 | 沈国芳 | Fixing scaffold for surgical guidance |
| CN104799933A (en) * | 2015-03-18 | 2015-07-29 | 清华大学 | Movement compensation method of surgical robot for positioning and guiding for bone surgery |
| CN204683723U (en) * | 2015-05-11 | 2015-10-07 | 王炳武 | Intervertebral foramina puncture navigation arrangement |
| WO2017064254A1 (en) * | 2015-10-14 | 2017-04-20 | Surgivisio | Fluoro-navigation system for navigating a tool relative to a medical image |
| CN106618755A (en) * | 2016-08-18 | 2017-05-10 | 首都医科大学附属北京地坛医院 | Percutaneous navigation guide board combined with body position fixation device and preparation method thereof |
| CN106667578A (en) * | 2017-01-10 | 2017-05-17 | 北京积水潭医院 | Noninvasive fixed device used in spinal surgical navigation tracer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217714A1 (en) * | 2020-04-26 | 2021-11-04 | 深圳市鑫君特智能医疗器械有限公司 | Surgical guide plate, three-dimensional model and manufacturing and construction method, computer, and storage medium |
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Application publication date: 20180119 |