CN111493972A - Bone drill sighting device - Google Patents
Bone drill sighting device Download PDFInfo
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- CN111493972A CN111493972A CN201910090500.1A CN201910090500A CN111493972A CN 111493972 A CN111493972 A CN 111493972A CN 201910090500 A CN201910090500 A CN 201910090500A CN 111493972 A CN111493972 A CN 111493972A
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- sleeve
- limiting part
- limiting
- bone drill
- scapula
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 78
- 210000001991 scapula Anatomy 0.000 claims abstract description 58
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 206010023204 Joint dislocation Diseases 0.000 description 2
- 208000008877 Shoulder Dislocation Diseases 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 210000000323 shoulder joint Anatomy 0.000 description 2
- 241001653121 Glenoides Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000001264 anterior cruciate ligament Anatomy 0.000 description 1
- 210000001188 articular cartilage Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000000281 joint capsule Anatomy 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1778—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the shoulder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a bone drill sight, comprising: a grip portion and a guide tube; the holding part is provided with a guide hole, the guide pipe penetrates through the guide hole, and the front end of the guide pipe, which is away from the holding part, is provided with a first limiting part and a second limiting part; a first included angle is formed between the first limiting part and the axis of the guide pipe, and a second included angle is formed between the second limiting part and the axis of the guide pipe; the first limiting part is used for abutting against a first position of the scapula, and the second limiting part is used for abutting against a second position of the scapula; during the operation with first spacing portion support on the first position on the scapula to support the second spacing portion on the second position on the scapula, make the axis of stand pipe just to the preset position on the scapula, the bone drill passes the stand pipe and sets up the second mounting hole on the scapula, the position of second mounting hole is comparatively accurate, the position of easy control bone piece, the operation effect is better.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a bone drill sighting device.
Background
Recurrent shoulder dislocation refers to the repeated dislocation of the shoulder joint caused by the accidental movement of the patient in daily life due to the failure of the injured joint capsule and labrum to repair in time after the first trauma; therefore, how to treat recurrent shoulder dislocation becomes a hot point of research.
In the prior art, a part of a bone block is usually cut on a patient's coracoid process, and then the bone block is fixed on a scapula outside a patient's labrum through a bone block fixing screw, so that the bone block can prevent spherical articular cartilage from being detached from the labrum, and further prevent the shoulder joint from being dislocated. During operation, firstly cutting a part of bone block on a coracoid process of a patient, and drilling a first mounting hole on the bone block through a bone drill; then, the sleeve is stretched into the shoulder tissue of the patient, the bottom end of the sleeve abuts against the preset position of the scapula, the bone drill is inserted into the sleeve, and a second mounting hole is drilled in the scapula through the bone drill; and then the bone block is attached to the scapula, the first mounting hole is opposite to the second mounting hole, and the bone block is fixed on the scapula through the bone block fixing screw so as to complete the operation.
However, in the prior art, after the sleeve abuts against the scapula, it is difficult to accurately determine the position of the preset position, so that the position accuracy of the second mounting hole is insufficient, the position of the bone block is difficult to accurately control, and the operation effect is poor.
Disclosure of Invention
In view of this, the present invention provides a bone drill sight, so as to solve the technical problems in the prior art that after the sleeve is abutted against the scapula, it is difficult to accurately determine the position of the preset position, so that the position accuracy of the second mounting hole is insufficient, the position of the bone block is difficult to accurately control, and the operation effect is poor.
The invention provides a bone drill sight, comprising: a grip portion and a guide tube; the holding part is provided with a guide hole, the guide pipe is arranged in the guide hole in a penetrating manner, and the front end of the guide pipe, which is away from the holding part, is provided with a first limiting part and a second limiting part; a first included angle is formed between the first limiting part and the axis of the guide pipe, and a second included angle is formed between the second limiting part and the axis of the guide pipe; the first limiting part is used for abutting against a first position of the scapula, and the second limiting part is used for abutting against a second position of the scapula.
The bone drill sight as described above, preferably, the guiding tube includes a first sleeve and a second sleeve, the first sleeve is sleeved outside the second sleeve, a rear end of the second sleeve is inserted into the guiding hole, and the first sleeve and the second sleeve are rotatably connected; the first limiting part is arranged at the front end of the first sleeve, and the second limiting part is arranged at the front end of the second sleeve.
The bone drill sight as described above, preferably, the bone drill sight further includes a stop post, the holding portion is provided with an arc-shaped slide way penetrating through the guide hole, a first end of the arc-shaped slide way along the circumferential direction is recessed towards the front end of the holding portion to form a first clamping groove, the stop post is inserted into the arc-shaped slide way, and the tail end of the stop post is connected with the first sleeve; when the first sleeve rotates to the preset direction, the first limiting portion and the second limiting portion form a second included angle, the stop column is slidably arranged in the first clamping groove.
As above bone drill sight, preferably, the second end of the arc-shaped slideway along the circumferential direction is formed with a second clamping groove towards the front end of the holding portion in a recessed manner, when the first sleeve rotates to the second direction opposite to the preset direction, and the first limiting portion and the second limiting portion form a second included angle, the stop column is slidably arranged in the second clamping groove.
As above bone drill sight, preferably, the middle part of arc slide along circumference to the front end of the portion of gripping is sunken to be formed with the third draw-in groove, first sleeve pipe rotates to backstop post sliding setup when in the third draw-in groove, first spacing portion with the contained angle between the spacing portion of second is the zero degree.
The bone drill sight as described above, preferably, the bone drill sight further includes a propping spring and an end cap, the end cap is detachably connected to the rear end of the holding portion, a through hole is provided on the end cap, and the second sleeve is inserted into the through hole; the abutting spring is arranged in the guide hole, one end of the abutting spring abuts against the rear end of the first sleeve, the other end of the abutting spring abuts against the end cover, and the abutting spring drives the first sleeve to move towards the front end of the holding part.
The bone drill sight as described above, preferably, the first sleeve is provided with a rotation portion on an outer side thereof.
The drill sight as described above, preferably, the outer side of the rotating portion is provided with a slip prevention member.
In the bone drill sight described above, preferably, the front end of the second limiting portion is provided with a protrusion.
In the above bone drill sight, preferably, the projection is plural, and the plural projections are arranged at the front end of the second limiting part at intervals.
According to the bone drill sighting device provided by the invention, the holding part is provided with the guide hole, the guide pipe is arranged in the guide hole in a penetrating manner, the front end of the guide pipe is provided with the first limiting part and the second limiting part, the first limiting part and the second limiting part form a first included angle with the axis of the guide pipe, and the first limiting part and the second limiting part form a second included angle; during the operation with first spacing portion support on the first position on the scapula to support the second spacing portion on the second position on the scapula, make the axis of stand pipe just to the preset position on the scapula, the bone drill passes the stand pipe and sets up the second mounting hole on the scapula, the position of second mounting hole is comparatively accurate, the position of easy control bone piece, the operation effect is better.
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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bone drill sight according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals:
10. a grip portion;
20. a first sleeve;
30. a second sleeve;
40. a stopper post;
50. a propping spring;
101. a guide hole;
102. an arc-shaped slideway;
103. an end cap;
201. a first limiting part;
202. a rotating part;
301. a second limiting part;
3011. a projection.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Fig. 1 is a schematic structural diagram of a bone drill sight according to an embodiment of the present invention; fig. 2 is a partially enlarged view of a portion a in fig. 1.
Please refer to fig. 1 and fig. 2. The present embodiment provides a bone drill sight, comprising: a grip portion 10 and a guide tube; a guide hole 101 is formed in the holding part 10, a guide pipe penetrates through the guide hole 101, and a first limiting part 201 and a second limiting part 301 are arranged at the front end of the guide pipe, which is away from the holding part 10; a first included angle is formed between the first limiting part 201 and the second limiting part 301 and the axis of the sleeve, and a second included angle is formed between the first limiting part 201 and the second limiting part 301; the first limiting portion 201 is used for abutting against a first position of the scapula, and the second limiting portion 301 is used for abutting against a second position of the scapula.
Specifically, the shape of the grip portion 10 may be various as long as it can be easily gripped by a doctor; for example: the grip portion 10 may have a regular shape such as a cylindrical shape or a prismatic shape, or the grip portion 10 may have another irregular shape. The material of the grip portion 10 may be various, for example: the grip portion 10 may be mainly made of a non-metallic material such as plastic or ceramic, or the grip portion 10 may be mainly made of a metallic material such as copper, iron, or aluminum. Preferably, an anti-slip layer is disposed on the outer surface of the grip portion 10, and the anti-slip layer may be a rubber layer to increase the friction between the grip portion 10 and the hand of the surgeon, so as to prevent the grip portion 10 from slipping off the hand of the surgeon during the operation.
The material of the guide tube with a circular cross section can be various, for example: the guide pipe can be a metal pipe mainly made of metal materials such as copper, iron and aluminum, or a non-metal pipe mainly made of non-metal materials such as plastics and ceramics; in the embodiment, the guide tube is preferably mainly made of titanium alloy, and the titanium alloy is non-toxic, has low density, high strength and good affinity with the human body, and reduces the damage to the body of the patient. The guide pipe can be connected with the holding part 10 in a welding or bolt connection mode, or the guide pipe and the holding part 10 are integrally formed in a casting or injection molding mode; in the present embodiment, the guide tube is preferably connected to the grip portion 10 by an adhesive.
Specifically, the first limiting portion 201 and the second limiting portion 301 are protrusions formed by extending the guide tube away from the front end of the holding portion 10, a first included angle is formed between the extending direction of the first limiting portion 201 and the second limiting portion 301 and the axis of the guide tube, and a second included angle is formed between the extending direction of the first limiting portion 201 and the extending direction of the second limiting portion 301; the reasonable sizes of the first included angle and the second included angle are set, so that the second limiting portion 301 is abutted against the second position by twisting the guide tube when the first limiting portion 201 is abutted against the first position of the scapula, and the center line of the guide tube is aligned to the preset position, used for forming the second mounting hole, on the scapula at the moment.
It should be noted that the first position may be the glenoid surface and the second position is the lower edge of the scapula; of course the first and second positions may also be two other more precise positions on the scapula.
The use process of the bone drill sight provided by the embodiment is as follows: firstly, cutting a bone block on a coracoid process of a patient, and then forming a first mounting hole on the bone block; penetrating a screw into the first mounting hole; then, the guide tube is inserted into the shoulder tissue of the patient by holding the holding part 10, the position of the guide tube is adjusted to enable the second limiting part 301 to be abutted against the second position of the scapula, then the holding part 10 is twisted to enable the first limiting part 201 to be abutted against the first position of the scapula, and at the moment, the axis of the guide tube is opposite to the preset position on the scapula; then, a bone drill is arranged in the guide tube in a penetrating manner, and a second mounting hole is formed in a preset position on the scapula through the bone drill; and finally, the bone block and the screw are placed in the tissue of the shoulder of the patient, and the screw is screwed into the second mounting hole until the bone block is attached to the scapula.
According to the bone drill sighting device provided by the embodiment, the holding part 10 is provided with the guide hole 101, the guide pipe penetrates through the guide hole 101, the front end of the guide pipe is provided with the first limiting part 201 and the second limiting part 301, a first included angle is formed between the first limiting part 201 and the axis of the guide pipe, the second limiting part 301 and the axis of the guide pipe, and a second included angle is formed between the first limiting part 201 and the second limiting part 301; during the operation, the first limiting part 201 is abutted against the first position on the scapula, the second limiting part 301 is abutted against the second position on the scapula, the axis of the guide pipe is opposite to the preset position on the scapula, the bone drill penetrates through the guide pipe to form a second mounting hole on the scapula, the position of the second mounting hole is accurate, the position of a bone block is easy to control, and the operation effect is good.
Specifically, the guide tube comprises a first sleeve 20 and a second sleeve 30, the first sleeve 20 is sleeved on the outer side of the second sleeve 30, the rear end of the second sleeve 30 penetrates through the guide hole 101, and the first sleeve 20 is rotatably connected with the second sleeve 30; the first stopper portion 201 is provided on the front end of the first sleeve 20, and the second stopper portion 301 is provided on the front end of the second sleeve 30. The first sleeve 20 is twisted to enable the first sleeve 20 to rotate relative to the second sleeve 30, so that the included angle between the first limiting part 201 and the second limiting part 301 is changed; when the first sleeve 20 and the second sleeve 30 are arranged in the tissue of the patient in a penetrating manner and the first sleeve 20 and the second sleeve 30 are taken out from the tissue of the patient, the first sleeve 20 is twisted to reduce the included angle between the first limiting part 201 and the second limiting part 301, and further the damage to the tissue of the patient in the process that the first limiting part 201 and the second limiting part 301 move in the tissue is reduced.
It should be noted that after the first cannula 20 and the second cannula 30 are inserted into the tissue of the patient, the second position-limiting portion 301 is pressed against the second position, then the first cannula 20 is twisted to form a second included angle between the first position-limiting portion 201 and the second position-limiting portion 301, and then the first position-limiting portion 201 is pressed against the first position.
Specifically, the bone drill sighting device further comprises a stopping column 40, an arc-shaped slide way 102 penetrating to the guide hole 101 is arranged on the holding portion 10, a first end of the arc-shaped slide way 102 along the circumferential direction is sunken to the front end of the holding portion 10 to form a first clamping groove, the stopping column 40 penetrates through the arc-shaped slide way 102, and the tail end of the stopping column 40 is connected with the first sleeve 20; when the first sleeve 20 rotates in the predetermined direction until the first position-limiting portion 201 and the second position-limiting portion 301 form a second included angle, the stop pillar 40 is slidably disposed in the first slot. When a second included angle is formed between the first limiting part 201 and the second limiting part 301, the stop pillar 40 is slidably arranged in the first clamping groove to prevent the first sleeve 20 from rotating, so that the change of the included angle between the first limiting part 201 and the second limiting part 301 caused by the rotation of the first sleeve 20 in the operation process is avoided; thereby avoiding the low position precision of the second mounting hole caused by the change of the included angle between the first limiting part 201 and the second limiting part 301; in addition, when the stopping post 40 is rotated to be slidably arranged in the first clamping groove, the included angle between the first limiting portion 201 and the second limiting portion 301 is the second included angle, the angle for rotating the first sleeve 20 does not need to be controlled manually, and the operation is convenient.
Specifically, a second end of the arc-shaped sliding way 102 along the circumferential direction is recessed towards the front end of the holding portion 10 to form a second clamping groove, and when the first sleeve 20 rotates in the opposite direction of the preset direction until the first limiting portion 201 and the second limiting portion 301 form a second included angle, the stop post 40 is slidably arranged in the second clamping groove. The bone drill sight can position left and right scapulae so as to improve the universality of the bone drill sight.
It should be noted that, when the first sleeve 20 is rotated to the preset direction until the stop pillar 40 is slidably disposed in the first slot, the first limiting portion 201 and the second limiting portion 301 may abut against the left scapula of the patient, so as to form a second mounting hole on the left scapula; when the first sleeve 20 is rotated in the opposite direction of the preset direction until the stop post 40 is slidably disposed in the second slot, the first limiting portion 201 and the second limiting portion 301 may abut against the right scapula of the patient, so as to form a second mounting hole on the right scapula.
Specifically, a third clamping groove is formed in the middle of the arc-shaped slide way 102 along the circumferential direction and is recessed towards the front end of the holding portion 10, when the first sleeve 20 rotates until the stop post 40 is slidably arranged in the third clamping groove, an included angle between the first limiting portion 201 and the second limiting portion 301 is zero. The third draw-in groove is located between first draw-in groove and the second draw-in groove, and when penetrating first sleeve 20 and second sleeve 30 in to patient's tissue, perhaps taking out first sleeve 20 and second sleeve 30 in by patient's tissue, stop post 40 slides and establishes in the third draw-in groove, and the third draw-in groove prevents first sleeve 20 to take place to rotate to when moving first sleeve 20 and second sleeve 30, the tissue damage that the contained angle change between first spacing portion 201 and the spacing portion 301 of second caused.
The use process of the bone drill sight provided by the embodiment is as follows: firstly, cutting a bone block on a coracoid process of a patient, and then forming a first mounting hole on the bone block; penetrating a screw into the first mounting hole; then the holding part 10 is held, and the rotating part 202 is twisted to enable the stop column 40 to be arranged in the third clamping groove in a sliding mode; then, the first sleeve 20 and the second sleeve 30 are inserted into the shoulder tissue of the patient, and the rotating part 202 is twisted to enable the stop post 40 to be arranged in the first clamping groove in a sliding manner (in the above step, for the case that a second mounting hole is arranged on the left scapula, if a second mounting hole is arranged on the right scapula, the stop post 40 needs to be arranged in the second clamping groove in a sliding manner); then, the second limiting part 301 is abutted against the second position of the scapula, and then the holding part 10 is twisted to enable the first limiting part 201 to be abutted against the first position of the scapula, and at the moment, the axes of the first sleeve 20 and the second sleeve 30 are opposite to the preset position on the scapula; then, the bone drill penetrates through the second sleeve 30, and a second mounting hole is formed in a preset position on the scapula through the bone drill; then the rotating part 202 is rotated to make the stop column 40 slide in the third slot, so as to take out the first sleeve 20 and the second sleeve 30; and finally, the bone block and the screw are placed in the tissue of the shoulder of the patient, and the screw is screwed into the second mounting hole until the bone block is attached to the scapula.
It should be noted that the bone drill sight provided by the present embodiment can be used not only in the process of drilling the hole in the scapula, but also in any operation that can determine the position of the hole through the first position-limiting part 201 and the second position-limiting part 301, for example: in the cruciate ligament repair operation, when an opening is formed in the femoral bone tunnel of the anterior cruciate ligament, the first limiting part 201 is abutted against the lower end of the femoral condyle, and the second limiting part 301 is abutted against the inner side wall of the femoral condyle, so that the opening is formed in the femur. It is understood that the contact positions of the first limiting part 201 and the second limiting part 301 with the bone may be different according to the positions of the holes, as long as the positions of the holes can be determined by the first limiting part 201 and the second limiting part 301.
Specifically, the bone drill sighting device further comprises a propping spring 50 and an end cover 103, wherein the end cover 103 is detachably connected with the rear end of the holding part 10, a through hole is formed in the end cover 103, and the second sleeve 30 penetrates through the through hole; the propping spring 50 is disposed in the guiding hole 101, one end of the propping spring 50 props against the rear end of the first sleeve 20, the other end of the propping spring 50 props against the end cap 103, and the propping spring 50 drives the first sleeve 20 to move toward the front end of the holding portion 10. The propping spring 50 props against the first sleeve 20 towards the front end of the holding part 10, so that the stopping posts 40 on the first sleeve 20 are slidably arranged in the clamping grooves, and the stopping posts 40 are prevented from being separated from the clamping grooves in the using process.
Specifically, the outer side of the first sleeve 20 is provided with a rotation portion 202. The first sleeve 20 is twisted by the rotating portion 202, so that the operation is convenient and labor-saving.
Preferably, the outer side of the rotating part 202 is provided with anti-slip means. To increase the friction between the surgeon's hand and the rotating portion 202 and further avoid relative sliding between the surgeon's hand and the rotating portion 202 when the rotating portion 202 is twisted.
The use process of the bone drill sight provided by the embodiment is as follows: firstly, cutting a bone block on a coracoid process of a patient, and then forming a first mounting hole on the bone block; penetrating a screw into the first mounting hole; then the holding part 10 is held, the rotating part 202 is pulled backwards to enable the stopping part to be positioned in the arc-shaped slide way 102, then the rotating part 202 is twisted to enable the stopping post 40 to be opposite to the third clamping groove, the rotating part 202 is released, and the stopping post 40 is arranged in the third clamping groove in a sliding mode under the action of the abutting spring 50; then, the guide tube is inserted into the shoulder tissue of the patient, the rotating part 202 is pulled backwards to enable the stop post 40 to be located in the arc-shaped slide way 102, then the rotating part 202 is twisted to enable the stop post 40 to be opposite to the first clamping groove, and the rotating part 202 is released to enable the stop post 40 to be arranged in the first clamping groove in a sliding mode (aiming at the condition that a second mounting hole is formed in the left scapula, if a second mounting hole is formed in the right scapula, the stop post 40 needs to be arranged in the second clamping groove in a sliding mode); then, the second limiting part 301 is abutted against the second position of the scapula, and then the holding part 10 is twisted to enable the first limiting part 201 to be abutted against the first position of the scapula, and at the moment, the axes of the first sleeve 20 and the second sleeve 30 are opposite to the preset position on the scapula; then, the bone drill penetrates through the second sleeve 30, and a second mounting hole is formed in a preset position on the scapula through the bone drill; then the rotating part 202 is pulled backwards to enable the stop post 40 to be positioned in the arc-shaped slideway 102, the rotating part 202 is rotated to enable the stop post 40 to be positioned in the third clamping groove, and then the first sleeve 20 and the second sleeve 30 are taken out; and finally, the bone block and the screw are placed in the tissue of the shoulder of the patient, and the screw is screwed into the second mounting hole until the bone block is attached to the scapula.
Specifically, the front end of the second stopper portion 301 is provided with a projecting portion 3011. The protrusion 3011 may increase the friction between the second limiting portion 301 and the scapula so as to prevent the second limiting portion 301 from sliding on the scapula during operation.
Specifically, the protruding portion 3011 is a plurality of protruding portions 3011, and the plurality of protruding portions 3011 are disposed at intervals at the front end of the second limiting portion 301. To further increase the friction between the second stopper portion 301 and the scapula.
In the present invention, unless otherwise specifically stated, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected internally or in any other manner known to those skilled in the art, unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A bone drill sight, comprising: a grip portion and a guide tube; the holding part is provided with a guide hole, the guide pipe is arranged in the guide hole in a penetrating manner, and the front end of the guide pipe, which is away from the holding part, is provided with a first limiting part and a second limiting part; a first included angle is formed between the first limiting part and the axis of the guide pipe, and a second included angle is formed between the second limiting part and the axis of the guide pipe; the first limiting part is used for abutting against a first position of the scapula, and the second limiting part is used for abutting against a second position of the scapula.
2. The bone drill sight of claim 1, wherein the guide tube comprises a first sleeve and a second sleeve, the first sleeve is sleeved outside the second sleeve, the rear end of the second sleeve is inserted into the guide hole, and the first sleeve and the second sleeve are rotatably connected; the first limiting part is arranged at the front end of the first sleeve, and the second limiting part is arranged at the front end of the second sleeve.
3. The bone drill sight of claim 2, further comprising a stop post, wherein the grip portion is provided with an arc-shaped slide way penetrating through the guide hole, a first end of the arc-shaped slide way along the circumferential direction is recessed towards the front end of the grip portion to form a first clamping groove, the stop post is arranged in the arc-shaped slide way in a penetrating manner, and the tail end of the stop post is connected with the first sleeve; when the first sleeve rotates to the preset direction, the first limiting portion and the second limiting portion form a second included angle, the stop column is slidably arranged in the first clamping groove.
4. The bone drill sight of claim 3, wherein a second slot is formed at a second circumferential end of the arc-shaped slideway towards a front end of the holding portion, and the stop post is slidably disposed in the second slot when the first sleeve rotates in a direction opposite to the predetermined direction until a second included angle is formed between the first limiting portion and the second limiting portion.
5. The bone drill sight of claim 4, wherein a third slot is formed in the circumferential middle of the arc-shaped slideway towards the front end of the holding portion in a recessed manner, and when the first sleeve rotates to the stop column and is slidably arranged in the third slot, an included angle between the first limiting portion and the second limiting portion is zero.
6. The bone drill sight of any one of claims 3 to 5, further comprising a resisting spring and an end cap, wherein the end cap is detachably connected with the rear end of the holding part, a through hole is formed in the end cap, and the second sleeve is arranged in the through hole in a penetrating manner; the abutting spring is arranged in the guide hole, one end of the abutting spring abuts against the rear end of the first sleeve, the other end of the abutting spring abuts against the end cover, and the abutting spring drives the first sleeve to move towards the front end of the holding part.
7. The bone drill sight of claim 6, wherein a rotating portion is provided on an outer side of the first sleeve.
8. The bone drill sight of claim 7, wherein the outer side of the rotating portion is provided with a slip prevention member.
9. The bone drill sight of claim 1, wherein the forward end of the second stop portion is provided with a projection.
10. The drill sight of claim 9, wherein the projection is a plurality of projections spaced apart at a forward end of the second stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090500.1A CN111493972A (en) | 2019-01-30 | 2019-01-30 | Bone drill sighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090500.1A CN111493972A (en) | 2019-01-30 | 2019-01-30 | Bone drill sighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111493972A true CN111493972A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090500.1A Pending CN111493972A (en) | 2019-01-30 | 2019-01-30 | Bone drill sighting device |
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| Country | Link |
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| CN (1) | CN111493972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957118A (en) * | 2021-01-29 | 2021-06-15 | 北京大学第三医院（北京大学第三临床医学院） | Nail placing guider |
| WO2022160394A1 (en) * | 2021-01-27 | 2022-08-04 | 北京大学第三医院（北京大学第三临床医学院） | Flat bone drill |
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