CN113576616B - Tool for positioning center of glenoid - Google Patents
Tool for positioning center of glenoid Download PDFInfo
- Publication number
- CN113576616B CN113576616B CN202110893323.8A CN202110893323A CN113576616B CN 113576616 B CN113576616 B CN 113576616B CN 202110893323 A CN202110893323 A CN 202110893323A CN 113576616 B CN113576616 B CN 113576616B
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- China
- Prior art keywords
- guide pin
- glenoid
- positioning
- shaped structure
- tool
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- 241001653121 Glenoides Species 0.000 title claims abstract description 25
- 238000003780 insertion Methods 0.000 claims abstract description 58
- 230000037431 insertion Effects 0.000 claims abstract description 58
- 210000001991 scapula Anatomy 0.000 claims abstract description 11
- 230000000007 visual effect Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 210000005036 nerve Anatomy 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Abstract
The invention provides a tool for positioning the center of a glenoid, which comprises the following components: an insertion part, on which an insertion section for fitting with the arc surface of the scapula is provided; and the positioning structure is connected with a part above the insertion section on the insertion part, and the lower end surface of the positioning structure is attached to the glenoid for positioning the center of the glenoid. The advantages are that: the specific structure of the guide pin hole designed by the invention is equivalent to three communicated guide pin holes, so that the guide pin can be pulled out to reselect the position of the inserted guide pin hole for accurate positioning on the premise of fixing a positioning tool.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a tool for positioning the center of a glenoid.
Background
Existing instruments for shoulder center positioning require an operator to have a certain experience to accurately position, but have several drawbacks in this process: in a first aspect, it is inconvenient to determine the location of the subglenoid nodule, and the score line is inaccurate, resulting in inaccurate centering; in a second aspect, the instrument has only one guide pin hole, and if the position is biased, the instrument needs to be operated again to determine the central position; in a third aspect, the instrument insertion end is designed to securely engage the side wall of the main scapula, incorporating pins, which may potentially touch nerves and damage scapula tissue due to improper operation; finally, two straight lines are needed to be drawn, and the transverse straight lines are compared with experience of a doctor, so that inaccurate drawing is easy to cause inaccurate center positioning.
Disclosure of Invention
The invention provides a tool for positioning the center of a glenoid, which aims to overcome at least one technical defect so as to reduce damage to an affected part and accurately position the affected part.
In order to achieve the above object, the present invention provides the following technical solutions:
A tool for glenoid centering, comprising: an insertion part, on which an insertion section for fitting with the arc surface of the scapula is provided;
And the positioning structure is connected with a part above the insertion section on the insertion part, and the lower end surface of the positioning structure is attached to the glenoid for positioning the center of the glenoid.
Preferably, a guide pin hole is formed in the center of the positioning structure, and the distance between the axis of the guide pin hole and the bottom of the insertion section is 3-3.6mm.
Preferably, the linear length of the insertion section is equal to the length of insertion of the guide pin.
Further, the insertion section comprises an arc-shaped part and an insertion part connected with the lower end of the arc-shaped part, wherein an included angle between the arc-shaped part and the insertion part is an obtuse angle, and the distance between the axis of the guide pin hole and the bottom of the insertion part is 3-3.6mm.
Still further, the insertion member further includes a hand-held portion connected to the tip of the insertion section, and the positioning structure is connected to the hand-held portion.
Further, the positioning structure comprises a first horizontal positioning strip, a second horizontal positioning strip and an abutting part, wherein the first horizontal positioning strip is vertically connected with the second horizontal positioning strip to form a cross-shaped structure, and a through hole is formed in the middle of the cross-shaped structure; the abutting part is positioned at the center of the cross structure, so that the axis of the abutting part coincides with the axis of the cross structure;
Wherein, offer on the butt portion with the guide pin hole that is used for the guide pin to pass of through-hole adaptation.
Further, visual windows are symmetrically arranged on the second horizontal positioning strip along two sides of the abutting portion.
Furthermore, the guide pin hole is of an 8-shaped structure with a cross section, and arc sections protruding outwards are symmetrically arranged on two sides of the middle of the 8-shaped structure, so that the guide pin hole of the 8-shaped structure is penetrated in the transverse direction, and the guide pin is inserted into the middle or left side or right side of the 8-shaped structure to be positioned.
Still further, the guide pin holes of the "8" configuration are disposed along the length of the second horizontal alignment bar and are co-transverse to the longitudinal axis thereof.
The tool for positioning the center of the glenoid has the advantages that: the specific structure of the guide pin hole designed by the invention is equivalent to three communicated guide pin holes, so that the guide pin can be pulled out to reselect the position of the inserted guide pin hole for accurate positioning on the premise of fixing a positioning tool;
In addition, the combination design of the insertion section and the positioning structure in the structure ensures that the insertion section does not hurt nerves, shoulder blades and muscle tissues when being inserted; meanwhile, the visual window is designed to facilitate the observation of doctors and improve the success rate of the operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIGS. 1 to 3 are schematic perspective views showing different angles of view of a tool for centering a glenoid in accordance with the present invention;
FIG. 4 is a schematic elevational view of a tool for positioning the center of a glenoid in accordance with the present invention;
FIG. 5 is an enlarged schematic view of the positioning structure;
Wherein:
1-an insertion part, 11-an insertion section, 11 a-an arc-shaped part, 11 b-an insertion part, 12-a hand-held part; the device comprises a 2-positioning structure, a 21-guide pin hole, a 21 a-arc section, a 22-first horizontal positioning strip, a 23-second horizontal positioning strip, a 24-abutting part, a 25-through hole and a 26-visible window.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In order to avoid damage to the affected area caused by scribing and scribing inaccuracy, according to the present invention, as shown in fig. 1 to 4, there is provided a tool for centering a glenoid, comprising: the insertion part 1 is provided with an insertion section 11 which is used for being matched with the cambered surface of the scapula, so that the scapula can be attached when the insertion part is conveniently inserted, namely, the insertion section 11 is provided with the cambered surface, and in order to reduce the damage to the affected part in the process of being inserted into the affected part and improve the experience of a patient, each edge of the insertion section 11 is provided with a smooth and cambered edge, the damage to muscles and partial nerves is further reduced, and meanwhile, an operator can conveniently find the center of a shoulder spit; and the positioning structure 2 is connected with a part above the insertion section 11 on the insertion part 1, and the lower end surface of the positioning structure 2 is attached to the glenoid for positioning the center of the glenoid. In use, the insertion section 11 is inserted downward along the middle of the glenoid side until the lower end surface of the positioning structure 2 is attached to the glenoid, and then a subsequent surgical operation is performed.
In a specific embodiment, in order to avoid the bone from being perforated during the insertion process of the guide pin, the guide pin hole 21 is provided in the center of the positioning structure 2, and the distance between the axis of the guide pin hole 21 and the bottom of the insertion section 11 is 3-3.6mm, preferably 3.2mm, so that the insertion section 11 slides down against the scapula wall, and when the guide pin strikes the corresponding scale, a distance of 3.2mm is provided between the tip of the guide pin and the insertion section 11, so as to avoid the cortical bone from being perforated.
In a specific implementation, in order to reduce injury to the affected part and to more precisely insert the guide pin, the linear length of the insertion section 11 is equal to the length of the guide pin.
In a specific embodiment, the insertion section 11 includes an arc-shaped portion 11a and an insertion portion 11b connected to the lower end thereof, wherein an included angle between the arc-shaped portion 11a and the insertion portion 11b is an obtuse angle, so that the insertion is facilitated, and meanwhile, damage to the arc-shaped portion 11a is reduced to make the insertion portion more fit the scapula, wherein a distance between an axis of the guide pin hole 21 and the bottom of the insertion portion 11b is 3-3.6mm;
in a specific operation, for the convenience of the operator, the insertion part 1 further includes a hand-holding portion 12 connected to the top end of the insertion section 11, and the positioning structure 2 is connected to the hand-holding portion 12, so that the operator can insert the insertion section 11 into the scapula by holding the hand-holding portion 12 during the operation.
In a specific embodiment, as shown in fig. 5, the positioning structure 2 includes a first horizontal positioning strip 22, a second horizontal positioning strip 23, and an abutment portion 24, where the first horizontal positioning strip 22 and the second horizontal positioning strip 23 are vertically connected to form a cross-shaped structure, and a through hole 25 is formed in the middle of the cross-shaped structure; the abutting portion 24 is located at the center of the cross structure, so that the axis of the abutting portion 24 coincides with the axis of the cross structure; wherein, the abutting portion 24 is provided with a guide pin hole 21 adapted to the through hole 25 for the guide pin to pass through, so that when the insertion section 11 is attached to the scapula, the guide pin is inserted into the guide pin hole 21 for positioning.
In a specific implementation process, for quick and convenient positioning, the second horizontal positioning strip 23 is symmetrically provided with visual windows 26 along two sides of the abutting part 24; furthermore, in order to avoid the problem of inaccurate positioning of the guide pin when the guide pin is inserted for the first time, the guide pin hole 21 is of an 8-shaped structure with a cross section, and arc sections 21a protruding outwards are symmetrically arranged on two sides of the middle of the 8-shaped structure, so that the guide pin hole 21 of the 8-shaped structure is penetrated in the transverse direction to position the guide pin when the guide pin is inserted into the middle or left side or right side of the 8-shaped structure; namely, the guide pin hole 21 of the 8-shaped structure is formed by three communicated holes, which clearly indicates that the two arc-shaped sections 21a on the 8-shaped structure are enclosed into a middle hole with two open sides for guide pin insertion and avoiding looseness and displacement after insertion, and two symmetrical side holes are arranged on two sides of the middle hole, so that the guide pin can be inserted from the side hole as required for accurate positioning, and the guide pin inserted into the side hole can be prevented from loosening and displacement due to the design of the arc-shaped sections 21 a;
In a specific implementation manner, the guide pin holes 21 with the '8' -shaped structure are arranged along the length direction of the second horizontal positioning strip 23 and share a transverse axis with the second horizontal positioning strip, so that the positioning accuracy of the shoulder pelvis center is further facilitated.
The invention is realized in the following way: the operator holds the hand-holding part 12 by hand and inserts the hand-holding part downwards along the middle part of the shoulder spit side until the lower end surface of the positioning structure 2 is attached to the shoulder spit, and then the subsequent operation is performed.
The terms or structures not specifically described or drawn in the present invention are conventional techniques, and thus are not described in detail; for example, a guide pin is a graduated guide pin commonly used in the field of operations.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A tool for positioning the center of a glenoid, which is characterized in that: comprising
An insertion part (1) provided with an insertion section (11) for fitting with the cambered surface of the scapula; a positioning structure (2) connected with a part above the insertion section (11) on the insertion component (1), wherein the lower end surface of the positioning structure (2) is attached to the glenoid for positioning the center of the glenoid;
A guide pin hole (21) is formed in the center of the positioning structure (2), and the distance between the axis of the guide pin hole (21) and the bottom of the insertion section (11) is 3-3.6mm;
The inserting section (11) comprises an arc-shaped part (11 a) and an inserting part (11 b) connected with the lower end of the arc-shaped part, and an included angle between the arc-shaped part (11 a) and the inserting part (11 b) is an obtuse angle; wherein the distance between the axis of the guide pin hole (21) and the bottom of the insertion part (11 b) is 3-3.6mm;
the insertion part (1) further comprises a hand-held part (12) connected with the top end of the insertion section (11), and the positioning structure (2) is connected with the hand-held part (12);
The positioning structure (2) comprises a first horizontal positioning strip (22), a second horizontal positioning strip (23) and an abutting part (24), wherein the first horizontal positioning strip (22) is vertically connected with the second horizontal positioning strip (23) to form a cross-shaped structure, and a through hole (25) is formed in the middle of the cross-shaped structure; the abutting part (24) is positioned at the center of the cross-shaped structure, so that the axis of the abutting part (24) coincides with the axis of the cross-shaped structure;
Wherein, a guide pin hole (21) which is matched with the through hole (25) and used for the guide pin to pass through is arranged on the abutting part (24).
2. The tool for glenoid centering of claim 1, wherein: the linear length of the insertion section (11) is equal to the insertion length of the guide pin.
3. The tool for glenoid centering of claim 1, wherein: visual windows (26) are symmetrically arranged on the second horizontal positioning strip (23) along the two sides of the abutting part (24).
4. A tool for glenoid centering as claimed in claim 3, wherein: the guide pin hole (21) is of an 8-shaped structure with a cross section, and arc-shaped sections (21 a) protruding outwards are symmetrically arranged on two sides of the middle of the 8-shaped structure, so that the guide pin hole (21) of the 8-shaped structure is penetrated transversely, and the guide pin is inserted into the middle or left side or right side of the 8-shaped structure to be positioned.
5. The tool for glenoid centering of claim 4, wherein: the guide pin holes (21) of the 8-shaped structure are arranged along the length direction of the second horizontal positioning strip (23) and share a transverse axis with the second horizontal positioning strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893323.8A CN113576616B (en) | 2021-08-04 | Tool for positioning center of glenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893323.8A CN113576616B (en) | 2021-08-04 | Tool for positioning center of glenoid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113576616A CN113576616A (en) | 2021-11-02 |
| CN113576616B true CN113576616B (en) | 2024-07-12 |
Family
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201529159U (en) * | 2009-11-26 | 2010-07-21 | 林西斌 | Centesis locating bracket for guiding nephroscope lithotrity of B-type ultrasonic diagnostic equipment |
| CN109646154A (en) * | 2019-01-18 | 2019-04-19 | 青岛大学附属医院 | Shoulder broad-mouthed receptacle for holding liquid center needle locating guide device |
| CN210727847U (en) * | 2019-06-17 | 2020-06-12 | 上海市第六人民医院 | Shoulder joint positioning device |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201529159U (en) * | 2009-11-26 | 2010-07-21 | 林西斌 | Centesis locating bracket for guiding nephroscope lithotrity of B-type ultrasonic diagnostic equipment |
| CN109646154A (en) * | 2019-01-18 | 2019-04-19 | 青岛大学附属医院 | Shoulder broad-mouthed receptacle for holding liquid center needle locating guide device |
| CN210727847U (en) * | 2019-06-17 | 2020-06-12 | 上海市第六人民医院 | Shoulder joint positioning device |
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