CN211633469U - Medical abrasive drill - Google Patents
Medical abrasive drill Download PDFInfo
- Publication number
- CN211633469U CN211633469U CN201922078685.2U CN201922078685U CN211633469U CN 211633469 U CN211633469 U CN 211633469U CN 201922078685 U CN201922078685 U CN 201922078685U CN 211633469 U CN211633469 U CN 211633469U
- Authority
- CN
- China
- Prior art keywords
- shaft section
- transmission
- rod
- drill
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 90
- 230000007704 transition Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 206010028851 Necrosis Diseases 0.000 description 13
- 230000017074 necrotic cell death Effects 0.000 description 13
- 210000000988 bone and bone Anatomy 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 230000000472 traumatic effect Effects 0.000 description 6
- 230000001338 necrotic effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 210000001624 hip Anatomy 0.000 description 3
- 238000011540 hip replacement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 208000036487 Arthropathies Diseases 0.000 description 1
- 206010023204 Joint dislocation Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000020089 femoral neck fracture Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 208000013435 necrotic lesion Diseases 0.000 description 1
- 238000012148 non-surgical treatment Methods 0.000 description 1
Images
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses a medical abrasive drill, which comprises a drill bit and a drill rod, wherein one end of the drill rod is a connecting end connected with the drill bit, and the other end of the drill rod is a power input end connected with a driving piece; the drill rod comprises three shaft sections, wherein a connecting shaft section provided with a connecting end and a power shaft section provided with a power input end are parallel but not coaxial and are connected through an intermediate shaft section; and a transmission device for transmitting the power of the power input end to the connecting end is arranged in the drill rod. The medical abrasive drill of the utility model has the advantages of simple structure, good grinding effect, wide application range and the like.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a medical abrasive drilling.
Background
Femoral head necrosis is a disease that causes blood supply disorder in femoral head due to various reasons, and then causes structural change and collapse of femoral head, and finally causes hip joint dysfunction. Femoral head necrosis is mainly divided into traumatic femoral head necrosis and non-traumatic femoral head necrosis. The multi-center epidemiology of professors of Zhao De Wei in China shows that the non-traumatic femoral head necrosis occurrence rate of people over 15 years old in China is 0.725%, and the number of non-traumatic femoral head necrosis patients in China is as high as 812 ten thousands. The number of patients with traumatic femoral head necrosis caused by femoral neck fracture, hip joint dislocation and other factors is larger than that of patients with non-traumatic femoral head necrosis, so that femoral head necrosis is a disease with high incidence rate and high disability rate.
The current clinical treatment of femoral head necrosis is divided into surgical treatment and non-surgical treatment. For early femoral head necrosis, conservative treatment such as medicament or brace brake can be selected, and for middle and late femoral head necrosis patients, operative treatment is the only effective treatment mode. The operation treatment is mainly divided into hip protection operation treatment and hip replacement operation treatment. Because the existing artificial joint has a limited life, for young patients with age less than 55 years, once hip replacement is performed, the operation possibility of multiple hip replacements needs to be met, and the operation difficulty and cost are gradually increased, so that the hip-protection operation treatment is always preferred for the femoral head necrosis treatment scheme of the young patients. The most fundamental and important surgical procedure in hip surgery requires the complete removal of necrotic bone tissue. At present, the most common way for removing necrotic bone tissue in clinic is to use a osteotome and a osteotome to open a window at the joint of the head and the neck of the hip femur on the affected side, and then use an electric drill to grind the head to remove necrotic lesions in the femoral head. The existing medical abrasive drill is generally a drill bit of the abrasive drill arranged at one end of a straight drill rod, and the other end of the drill rod is connected with a driving device. The abrasive drill is feasible in drilling and the like, but when the front wall of the femoral head needs to be ground or the front wall needs to be ground in an inserting manner under the condition of small wound, the operation is blocked by thigh muscle and bone tissues in the operation, the abrasive drill is difficult to be completely parallel to an affected part, the problems that the grinding is difficult to be carried out, the grinding effect is poor and the like are caused, the necrotic focus above the front part of the femoral head cannot be effectively removed, and finally the operation requirement of completely removing the necrotic focus is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a medical abrasive drilling that simple structure, grinding are effectual and application scope is wide.
In order to solve the technical problem, the utility model provides a technical scheme does:
a medical abrasive drill comprises a drill bit and a drill rod, wherein one end of the drill rod is a connecting end connected with the drill bit, and the other end of the drill rod is a power input end connected with a driving piece; the drill rod comprises three shaft sections, wherein a connecting shaft section provided with a connecting end and a power shaft section provided with a power input end are parallel but not coaxial and are connected through an intermediate shaft section; and a transmission device for transmitting the power of the power input end to the connecting end is arranged in the drill rod.
As a further improvement of the above technical solution:
the transmission device comprises three transmission rods which are respectively arranged in the connecting shaft section, the power shaft section and the middle shaft section, and the three transmission rods are rotatably connected to the inner parts of the shaft sections through bearings; one end of a transmission rod in the connecting shaft section is connected with a drill bit, and the other end of the transmission rod is provided with a first bevel gear; one end of a transmission rod in the power shaft section is a power input end, and the other end of the transmission rod is provided with a second bevel gear; two ends of the transmission rod in the middle shaft section are respectively provided with a bevel gear which is in meshing transmission with the first bevel gear and the second bevel gear.
The transmission device comprises two transmission rods which are respectively arranged in the connecting shaft section and the power shaft section, and the two transmission rods are rotatably connected to the inner part of each shaft section through bearings; a transition gear is arranged in the middle shaft section, and the axial direction of the transition gear is vertical to the axial direction of the middle shaft section; one end of a transmission rod in the connecting shaft section is connected with the drill bit, and the other end of the transmission rod is provided with a gear in meshing transmission with the transition gear; one end of a transmission rod in the power shaft section is a power input end, and the other end of the transmission rod is provided with a gear which is in meshing transmission with the transition gear.
The transmission device comprises two transmission rods which are respectively arranged in the connecting shaft section and the power shaft section, and the two transmission rods are rotatably connected to the inner part of each shaft section through bearings; one end of a transmission rod in the connecting shaft section is connected with the drill bit, and the other end of the transmission rod is provided with a first belt pulley; one end of a transmission rod in the power shaft section is a power input end, and the other end of the transmission rod is provided with a second belt pulley; a belt for connecting and driving the first belt pulley and the second belt pulley is arranged in the middle shaft section.
The outer wall of the connecting shaft section at the connecting end is provided with a camera.
The drill rod is provided with a cable clamping groove, and a transmission cable of the camera is clamped in the cable clamping groove.
The two ends of the middle shaft section are detachably connected with the connecting shaft section and the power shaft section through threads.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a medical abrasive drill, which comprises a drill bit and a drill rod, wherein one end of the drill rod is a connecting end used for connecting the drill bit; the other end is a power input end connected with the driving piece. Different with current straight formula drilling rod, the utility model discloses a drilling rod includes the three-section shaft section, and the connection shaft section that wherein is equipped with the link is parallel but the disalignment with the power shaft section that is equipped with power input end, and the two is connected through the jackshaft section, and the inside transmission that is equipped with power input end for the link that is carried to the power of drilling rod. Due to the fact that the dislocation position exists, when the side wall of a bone needs to be ground or the side wall of the bone needs to be subjected to penetrating type grinding, an included angle between the drill rod and a grinding plane cannot exist due to shielding of surrounding tissues, the drill bit cannot be tightly attached to the grinding plane for grinding, the drill bit can be directly in close contact with the grinding plane, operation is simple, convenient and easy to conduct, the grinding effect is good, and efficiency is high.
Drawings
Fig. 1 is a schematic structural view of the medical abrasive drill of the present invention;
FIG. 2 is a schematic view showing the internal structure of the medical burr in example 1;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view showing the internal structure of the medical burr in example 2;
fig. 5 is a schematic view of the internal structure of the medical burr in example 3.
Illustration of the drawings: 1. a drill bit; 2. a drill stem; 21. connecting the shaft sections; 22. a power shaft section; 23. a middle shaft section; 24. a transmission device; 241. a transmission rod; 242. a bearing; 243. a belt; 25. a cable slot; 3. a camera is provided.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example 1:
as shown in fig. 1 and 2, the medical abrasive drill of the present embodiment includes a drill bit 1 and a drill rod 2, wherein one end of the drill rod 2 is a connection end connected with the drill bit 1, and the other end is a power input end connected with a driving member; the drill rod 2 comprises three sections of shaft sections, wherein a connecting shaft section 21 provided with a connecting end and a power shaft section 22 provided with a power input end are parallel but not coaxial and are connected through a middle shaft section 23; the drill rod 2 is internally provided with a transmission 24 for transmitting power at the power input end to the connecting end. Due to the fact that the dislocation position exists in the broken line type drill rod 2, when the side wall of a bone needs to be ground or the side wall of the bone needs to be ground in a penetrating mode, an included angle is formed between the drill rod 2 and a grinding plane due to shielding of surrounding tissues, the drill bit 1 cannot be tightly attached to the grinding plane for grinding, the drill bit 1 can be directly in close contact with the grinding plane, operation is simple, convenient and easy to conduct, the grinding effect is good, and grinding efficiency is high.
In this embodiment, the transmission device 24 includes three transmission rods 241 respectively disposed in the connecting shaft segment 21, the power shaft segment 22 and the middle shaft segment 23, and the three transmission rods 241 are rotatably connected to the inside of each shaft segment through a bearing 242; one end of a transmission rod 241 in the connecting shaft section 21 is connected with the drill bit 1, and the other end of the transmission rod is provided with a first bevel gear; one end of a transmission rod 241 in the power shaft section 22 is a power input end, and the other end is provided with a second bevel gear; two ends of the transmission rod 241 in the middle shaft section 23 are respectively provided with a bevel gear which is in meshing transmission with the first bevel gear and the second bevel gear. The gear transmission is adopted, so that the transmission efficiency can be effectively improved, the utilization rate of the driving force of the driving piece is further improved, and the transmission mode is also favorable for controlling the grinding speed of the drill bit 1 so as to be suitable for different grinding conditions.
In this embodiment, connecting shaft section 21 is equipped with camera 3 on the outer wall of junction department, makes things convenient for the art person to observe grinding process and grinding position, has further optimized the grinding effect, improves the security of grinding process.
In this embodiment, as shown in fig. 3, a cable slot 25 is provided on the drill rod 2, and a transmission cable for transmitting signals of the camera 3 is clamped in the cable slot 25, so as to prevent the cable from interfering the grinding environment, and further improve the safety of the grinding process.
In this embodiment, as shown in fig. 1, the two ends of the middle shaft section 23 are detachably connected with the connecting shaft section 21 and the power shaft section 22 through threads, and when cleaning, the cable is taken out from the cable clamping groove 25, and then the two ends of the middle shaft section 23 are unscrewed respectively, so that the drill rod 2 is divided into three parts, and internal cleaning can be performed. This arrangement enables more thorough cleaning.
Example 2:
this example is substantially the same as example 1, with the only difference that: as shown in fig. 4, the transmission device 24 includes two transmission rods 241 respectively disposed in the connecting shaft segment 21 and the power shaft segment 22, and the two transmission rods 241 are rotatably connected to the inside of each shaft segment through bearings 242; a transition gear is arranged in the middle shaft section 23, and the axial direction of the transition gear is vertical to the axial direction of the middle shaft section 23; one end of a transmission rod 241 in the connecting shaft section 21 is connected with the drill bit 1, and the other end of the transmission rod is provided with a gear which is in meshing transmission with the transition gear; one end of a transmission rod 241 in the power shaft section 22 is a power input end, and the other end of the transmission rod is provided with a gear which is in meshing transmission with the transition gear. By adopting the transmission device 24 of the embodiment, the interference of the side force caused by the bevel gear can be effectively avoided, and the grinding effect is further optimized.
Example 3:
this example is substantially the same as example 1 and example 2, with the only difference being that: as shown in fig. 5, the transmission device 24 includes two transmission rods 241 respectively disposed in the connecting shaft segment 21 and the power shaft segment 22, and the two transmission rods 241 are rotatably connected to the inside of each shaft segment through bearings 242; one end of a transmission rod 241 in the connecting shaft section 21 is connected with the drill bit 1, and the other end of the transmission rod is provided with a first belt pulley; one end of a transmission rod 241 in the power shaft section 22 is a power input end, and the other end of the transmission rod is provided with a second belt pulley; a belt 243 is provided in the intermediate shaft section 23 for connecting and driving the first pulley and the second pulley. The transmission mode of adopting belt 243 transmission has avoided gear drive's vibrations and noise, further optimizes the grinding effect.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (7)
1. A medical abrasive drill comprises a drill bit (1) and a drill rod (2), wherein one end of the drill rod (2) is a connecting end connected with the drill bit (1), and the other end of the drill rod is a power input end connected with a driving piece; the method is characterized in that: the drill rod (2) comprises three sections of shaft sections, wherein a connecting shaft section (21) provided with a connecting end and a power shaft section (22) provided with a power input end are parallel but not coaxial and are connected through a middle shaft section (23); and a transmission device (24) for transmitting the power at the power input end to the connecting end is arranged in the drill rod (2).
2. The medical burr of claim 1, wherein: the transmission device (24) comprises three transmission rods (241) which are respectively arranged in the connecting shaft section (21), the power shaft section (22) and the middle shaft section (23), and the three transmission rods (241) are rotatably connected to the inner parts of the shaft sections through bearings (242); one end of a transmission rod (241) in the connecting shaft section (21) is connected with the drill bit (1), and the other end of the transmission rod is provided with a first bevel gear; one end of a transmission rod (241) in the power shaft section (22) is a power input end, and the other end of the transmission rod is provided with a second bevel gear; two ends of the transmission rod (241) in the middle shaft section (23) are respectively provided with a bevel gear which is in meshing transmission with the first bevel gear and the second bevel gear.
3. The medical burr of claim 1, wherein: the transmission device (24) comprises two transmission rods (241) which are respectively arranged in the connecting shaft section (21) and the power shaft section (22), and the two transmission rods (241) are rotatably connected to the inner parts of the shaft sections through bearings (242); a transition gear is arranged in the middle shaft section (23), and the axial direction of the transition gear is vertical to the axial direction of the middle shaft section (23); one end of a transmission rod (241) in the connecting shaft section (21) is connected with the drill bit (1), and the other end of the transmission rod is provided with a gear which is in meshing transmission with the transition gear; one end of a transmission rod (241) in the power shaft section (22) is a power input end, and the other end of the transmission rod is provided with a gear which is in meshing transmission with the transition gear.
4. The medical burr of claim 1, wherein: the transmission device (24) comprises two transmission rods (241) which are respectively arranged in the connecting shaft section (21) and the power shaft section (22), and the two transmission rods (241) are rotatably connected to the inner parts of the shaft sections through bearings (242); one end of a transmission rod (241) in the connecting shaft section (21) is connected with the drill bit (1), and the other end of the transmission rod is provided with a first belt pulley; one end of a transmission rod (241) in the power shaft section (22) is a power input end, and the other end of the transmission rod is provided with a second belt pulley; a belt (243) for connecting and driving the first belt pulley and the second belt pulley is arranged in the middle shaft section (23).
5. The medical burr of claim 1, wherein: the outer wall of the connecting shaft section (21) at the connecting end is provided with a camera (3).
6. The medical burr of claim 5, wherein: the drill rod (2) is provided with a cable clamping groove (25), and a transmission cable of the camera (3) is clamped in the cable clamping groove (25).
7. The medical burr of claim 1, wherein: the two ends of the middle shaft section (23) are detachably connected with the connecting shaft section (21) and the power shaft section (22) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078685.2U CN211633469U (en) | 2019-11-27 | 2019-11-27 | Medical abrasive drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078685.2U CN211633469U (en) | 2019-11-27 | 2019-11-27 | Medical abrasive drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211633469U true CN211633469U (en) | 2020-10-09 |
Family
ID=72693447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922078685.2U Active CN211633469U (en) | 2019-11-27 | 2019-11-27 | Medical abrasive drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211633469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811757A (en) * | 2019-11-27 | 2020-02-21 | 中南大学湘雅医院 | Medical abrasive drill |
-
2019
- 2019-11-27 CN CN201922078685.2U patent/CN211633469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811757A (en) * | 2019-11-27 | 2020-02-21 | 中南大学湘雅医院 | Medical abrasive drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10582935B2 (en) | Flexible drill bit | |
| EP3661435B1 (en) | Surgical tool systems | |
| AU2018250499A1 (en) | Flexible drill bit and angled drill guide for use with the same | |
| CN110811757A (en) | Medical abrasive drill | |
| CN211633469U (en) | Medical abrasive drill | |
| CN111759431A (en) | Magnetic drive bone end retracting/pressurizing device | |
| CN108042245B (en) | Dislocation and fracture prevention ossicular joint prosthesis | |
| IL154120A (en) | System and method for pulverizing stones and for scar removal in soft tissues | |
| CN217390818U (en) | Used scope power planer tool of huge tophus clearance art | |
| CN211633468U (en) | Adjustable medical abrasive drill | |
| CN208659324U (en) | A kind of foramen intervertebrale lens work guide sleeve | |
| CN108670502B (en) | Femoral stem of femoral joint prosthesis and femoral joint prosthesis | |
| CN217744709U (en) | Local replacement system for femoral head | |
| CN116035649A (en) | Minimally invasive acetabular file for hip joint replacement | |
| CN211024725U (en) | A sacculus expander for uropoiesis surgery laparoscopic surgery | |
| CN110811758A (en) | Adjustable medical abrasive drill | |
| CN106361470A (en) | Distal radioulnar joint prosthesis | |
| CN212650899U (en) | Magnetic drive bone end retracting and pressurizing device | |
| CN107320152A (en) | A kind of Orthopaedic scraper for being easy to adjust | |
| CN214017703U (en) | Bone awl for tibial plateau microfracture | |
| CN218528829U (en) | Bend-to-saw blade suitable for cleaning acetabular peripheral osteophyte | |
| CN204468248U (en) | Percutaneous lock screw | |
| CN117084749B (en) | Safe and quick bone taking device | |
| CN214907853U (en) | Ultrasonic probe for interventional operation | |
| CN220988862U (en) | Taper tubular backbone grinds bores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |