CN111803159A - Bone cement anchor with thread and handle - Google Patents
Bone cement anchor with thread and handle Download PDFInfo
- Publication number
- CN111803159A CN111803159A CN202010531688.1A CN202010531688A CN111803159A CN 111803159 A CN111803159 A CN 111803159A CN 202010531688 A CN202010531688 A CN 202010531688A CN 111803159 A CN111803159 A CN 111803159A
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- Prior art keywords
- bone cement
- nail body
- suture
- anchor
- connecting rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8811—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the introducer tip, i.e. the part inserted into or onto the bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8816—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8819—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the introducer proximal part, e.g. cannula handle, or by parts which are inserted inside each other, e.g. stylet and cannula
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rheumatology (AREA)
- Surgical Instruments (AREA)
Abstract
The application relates to a bone cement anchor with a thread and a handle, which comprises an anchor body, a handle and a bolt, wherein the anchor body is in a screw shape and comprises a tip end and a suture end; the bone cement groove is arranged in the nail body along the length direction of the nail body, and one end of the bone cement groove is closed while the other end is communicated with the outside; the bone cement outlets are formed in the side wall of the nail body, communicated with the bone cement groove and positioned between two adjacent threads on the nail body, a plurality of bone cement outlets are formed, and the projections of the axes of the two adjacent bone cement outlets in the length direction of the nail body form an included angle; two suture holes are arranged on the suture end, and the two suture holes are symmetrically distributed by taking the axis of the nail body as a symmetry axis. The application has the effect of stress balance.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a bone cement anchor with a wire and a handle.
Background
The shoulder joint is a joint with the largest range of motion, the stability of the shoulder joint is mainly completed by the sleeves, and the sleeves coordinate and cooperate with other muscle groups to jointly participate in the motion of the shoulder joint. The shoulder sleeve draws the humerus head towards the glenoid direction in the upper arm abduction process, so that the normal fulcrum joint of the humerus head and the glenoid is maintained, the damage of the shoulder sleeve weakens or even loses the function, and the upper arm abduction function is seriously influenced. The rotator cuff injury has a plurality of repairing modes, the fixing mode has great influence on the repairing effect, the fixing mode of the rotator cuff injury mainly comprises bone tunnel fixing and anchor fixing, the bone tunnel fixing causes large trauma, postoperative early complications are more, the anchor fixing operation is simple, the biomechanics is stable, and therefore, the anchor fixing is frequently used at present.
The suture anchor is difficult to fix on a bone bed due to osteoporosis of old osteoporosis patients, and the fixing failure is often caused when the anchor is pulled out. Therefore, the arthroscopic shoulder suture for tearing the rotator cuff of the senile osteoporosis patient is a technical problem all the time. At present, the anti-withdrawal force is increased clinically by using large-diameter anchors and the like, but the loose bone is further damaged by increasing the diameter of the anchor as the anchor suture operation is a minimally invasive operation under an arthroscope.
In the prior art, chinese patent CN201520623436.6 discloses an anchor suturing tool including a bone cement anchor and a handle, wherein the bone cement anchor has an edge hole on its outer circumference and includes at least one hole with an opening at one end, and the hole is communicated with the edge hole for passing bone cement. The bone cement anchor also comprises at least one threading hole for threading the suture. The handle is internally provided with a hollow channel for passing a suture and bone cement. Adopt the utility model provides an anchor suturing instrument can effectual fixed anchor when the surgery operation to can strengthen bone strength, the rotator cuff that the especially adapted treated old osteoporosis patient tears.
Although the above-mentioned bone cement anchor with thread can treat rotator cuff tear and soft tissue ligament of senile osteoporosis patient, it is really progressive, but there are some defects in the actual structure, which causes the bone cement anchor with thread to have certain limitation in the actual use, and the defects can be summarized as follows: the single-hole suture line position on the bone cement anchor of the present application patent is deviated from the middle position by the middle position and is deviated from the middle position, when the rotator cuff for treating the senile osteoporosis patient is torn, because the suture is fixed on the soft tissue, the tension can be generated on the anchor, the tension makes the stress of the anchor unbalanced, and the long-term fixing effect is not ideal.
Disclosure of Invention
In one aspect, the present application provides a threaded bone cement anchor for equalizing hand forces.
The application provides a take line bone cement anchor adopts following technical scheme:
a bone cement anchor with a thread comprises a nail body which is in a screw shape and comprises a tip end and a suture end;
the bone cement groove is arranged in the nail body along the length direction of the nail body, and one end of the bone cement groove is closed while the other end is communicated with the outside;
the bone cement outlets are formed in the side wall of the nail body, communicated with the bone cement groove and positioned between two adjacent threads on the nail body, a plurality of bone cement outlets are formed, and the projections of the axes of the two adjacent bone cement outlets in the length direction of the nail body form an included angle;
two suture holes are arranged on the suture end, and the two suture holes are symmetrically distributed by taking the axis of the nail body as a symmetry axis.
Through adopting above-mentioned technical scheme, the setting of double suture hole can make the nail body pulling force that receives more balanced, reduces the tearing possibility of patient's rotator cuff, and the bone cement export that a plurality of axes are the contained angle setting simultaneously can strengthen anti pulling force, makes the more stable connection of nail body on patient's diaphysis, and long-term fixed effectual.
Preferably, the bone cement outlet is located on a portion of the shank near the tip.
Through adopting above-mentioned technical scheme, according to the distribution of osteoporosis, the bone volume that is close to the cortex is relatively more, so the nail body is opened the bone cement export position and is better near the most advanced position of nail body, pours into bone cement easier.
Preferably, the included angle between the projections of the axes between two adjacent bone cement outlets in the length direction of the nail body is 120 degrees.
By adopting the technical scheme, the adjacent anchor bolts can be ensured to be implanted without limitation, and the axes of the two adjacent bone cement outlets form an angle of 120 degrees, so that the anti-pulling force can be increased.
Preferably, the suture hole includes the through-hole of seting up on the suture end and seting up the dodging hole on the suture end of through-hole both ends department, dodges the one end and the through-hole intercommunication in hole, and the other end extends to the terminal surface of suture end and communicates with the external world.
Through adopting above-mentioned technical scheme, the setting of dodging the hole is convenient for the staff and is operated in suture hole department, reduces the possibility that instrument and the nail body took place to interfere during the operation.
Preferably, a counter bore is arranged at one end of the bone cement groove, which faces away from the tip.
Through adopting above-mentioned technical scheme, the setting of counter bore can be convenient for bone cement and get into bone cement inslot portion for the working process is convenient more fast.
On the other hand, in order to facilitate the installation of electrified line bone cement anchor nail, this application provides a handle for electrified line bone cement anchor nail, including foretell electrified line bone cement anchor nail, still include with the suture end can dismantle the connecting rod of being connected, set firmly in the hand (hold) of connecting rod one end and be located the inside conveyer pipe of connecting rod, the both ends of conveyer pipe are located the one end of connecting rod and the one end of hand (hold) respectively, and communicate with the external world, when the connecting rod was connected with the suture end, the one end butt of conveyer pipe was in the one end in bone.
Through adopting above-mentioned technical scheme, during the use, fix the connecting rod at the suture end of the nail body, then only need rotate the hand (hold) simultaneously, simultaneously to connecting rod inside pour into bone cement into can.
Preferably, the connecting rod is in interference fit with the suture end.
By adopting the technical scheme, the interference fit can ensure that the connecting rod and the nail body are connected more stably, and the nail body can conveniently enter the bone body of a patient.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the arrangement of the double suture holes can enable the tensile force borne by the nail body to be more balanced, the possibility of tearing of the rotator cuff of a patient is reduced, and meanwhile, the bone cement outlets with the axes arranged at included angles can enhance the pulling-resistant tensile force, so that the nail body is more stably connected to the bone body of the patient, and the long-term fixing effect is good;
2. the arrangement of the avoidance hole is convenient for workers to operate at the suture hole, and the possibility of interference between a tool and the nail body during operation is reduced;
3. the adjacent anchoring bolts can be ensured to be implanted without limitation, the axes of the two adjacent bone cement outlets form an angle of 120 degrees, and the anti-pull-out force can be increased.
Drawings
FIG. 1 is an isometric view of a first embodiment;
fig. 2 is an isometric view of the second embodiment.
Description of reference numerals: 1. a nail body; 11. a tip; 12. a suture end; 2. a bone cement outlet; 3. a bone cement trough; 31. a counter bore; 4. a yielding groove; 5. a through hole; 51. avoiding holes; 6. a handle; 7. a connecting rod; 8. a delivery pipe; 9. and (4) mounting the groove.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses area line bone cement anchor. Referring to fig. 1, comprising a screw-like shank 1, the shank 1 comprises a tip 11 and a suture end 12, the tip 11 serving to reduce the resistance received when drilling into the bone. Two yielding grooves 4 symmetrically arranged on two sides of the axis of the nail body 1 are formed in the suture end 12, and the suture end 12 is in a flat plate shape due to the arrangement of the yielding grooves 4.
Two through-holes 5 have been seted up on suture end 12 for providing fixed position when the staff suture, the both sides of the 1 axis of the nail body are located to the branch of two through-holes 5 symmetries, and the axis perpendicular to nail body 1's length direction of through-hole 5 just all runs through suture end 12, and the both ends of the nail body 1 are located two respectively promptly and step down inside groove 4.
Still seted up four and dodged hole 51 on suture end 12, the suture end 12 of the both ends department of every through-hole 5 has all seted up one and has dodged hole 51 on the entity, dodges hole 51 promptly and sets up on the lateral wall of groove 4 of dodging, dodges the bottom and the through-hole 5 intercommunication of hole 51, and the top is located the top surface of suture end 12 and communicates with the external world, and simultaneously, dodges hole 51 and is half poroid.
The nail body 1 is internally provided with a bone cement groove 3 arranged along the axis, the bottom end of the bone cement is positioned at the pointed end 11, the top end is positioned at the top surface of the suture end 12 and communicated with the outside, and the top surface of the suture end 12 at the top end of the bone cement groove 3 is provided with a counter bore 31 coaxially arranged with the bone cement groove 3. The through-hole 5 and the bone cement groove 3 form independent spaces, respectively.
Nine bone cement exports 2 have been seted up to the part that is close to brief on the nail body 1, and every three of nine bone cement exports 2 is a set of evenly distributed along the length direction of the nail body 1, and all only has one deck screw thread between every two adjacent bone cement exports 2 in the nail body 1 length direction. The included angle between the projections of the axial lines between two adjacent bone cement outlets 2 in the length direction of the nail body 1 is 120 degrees when the projections are seen from the direction vertical to the axial line of the nail body 1.
The embodiment of the application discloses a handle for a threaded bone cement anchor. Referring to fig. 2, including cylindric hand (hold) 6, set firmly connecting rod 7 in hand (hold) 6 one end and be located the inside conveyer pipe 8 of connecting rod 7, hand (hold) 6, connecting rod 7 and conveyer pipe 8 coaxial line set up, and the both ends of conveyer pipe 8 are located the one end of practicing the grade pole and the one end department of hand (hold) 6 respectively, and the both ends of conveyer pipe 8 all communicate with the external world, conveyer pipe 8 and connecting pipe fixed connection. The connecting pipe is seted up two mounting grooves that set up relatively to hand (hold) 6's tip dorsad, the mounting groove with offer the suture end 12 cooperation of groove 4 of stepping down, can peg graft suture end 12 inside the mounting groove, realize being connected between connecting rod 7 and the nail body 1, mounting groove and suture end 12 interference fit simultaneously, the port department in the bone cement groove 3 of conveyer pipe 8 back to hand (hold) 6's tip meeting butt in counter bore 31 this moment.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A bone cement anchor with thread is characterized by comprising
The nail body (1) is in a screw shape and comprises a tip end (11) and a suture end (12);
the bone cement groove (3) is arranged in the nail body (1) along the length direction of the nail body (1), and one end of the bone cement groove is closed while the other end is communicated with the outside;
the bone cement outlets (2) are formed in the side wall of the nail body (1), are communicated with the bone cement groove (3) and are positioned between two adjacent threads on the nail body (1), a plurality of bone cement outlets (2) are formed, and the projections of the axes of the two adjacent bone cement outlets (2) in the length direction of the nail body (1) form an included angle;
two suture holes are arranged on the suture end (12) and symmetrically distributed by taking the axis of the nail body (1) as a symmetry axis.
2. The threaded bone cement anchor of claim 1, wherein: the bone cement outlet (2) is positioned on the part of the nail body (1) close to the tip (11).
3. The threaded bone cement anchor of claim 1, wherein: the included angle between the projections of the axes between two adjacent bone cement outlets (2) in the length direction of the nail body (1) is 120 degrees.
4. The threaded bone cement anchor of claim 1, wherein: the suture hole comprises a through hole (5) arranged on the suture end (12) and avoiding holes (51) arranged on the suture end (12) at two ends of the through hole (5), one end of each avoiding hole (51) is communicated with the through hole (5), and the other end of each avoiding hole extends to the end face of the suture end (12) and is communicated with the outside.
5. The threaded bone cement anchor of claim 1, wherein: and a counter bore (31) is formed in one end of the bone cement groove (3) back to the tip (11).
6. The threaded bone cement anchor of claim 1, wherein: two abdicating grooves (4) which are respectively arranged at two sides of the bone cement groove (3) are arranged on the suture end (12), so that the suture end (12) is approximately straight.
7. A handle for a threaded bone cement anchor comprising the threaded bone cement anchor according to any one of claims 1 to 6, wherein: the bone cement groove connecting rod is characterized by further comprising a connecting rod detachably connected with the suture end (12), a handle (6) fixedly arranged at one end of the connecting rod (7) and a conveying pipe (8) arranged inside the connecting rod, wherein two ends of the conveying pipe (8) are respectively arranged at one end of the connecting rod (7) and one end of the handle (6) and communicated with the outside, and when the connecting rod (7) is connected with the suture end (12), one end of the conveying pipe (8) is abutted to one end of the bone cement groove (3).
8. The threaded bone cement anchor of claim 7, wherein: the connecting rod (7) is in interference fit with the suture end (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531688.1A CN111803159A (en) | 2020-06-11 | 2020-06-11 | Bone cement anchor with thread and handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531688.1A CN111803159A (en) | 2020-06-11 | 2020-06-11 | Bone cement anchor with thread and handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111803159A true CN111803159A (en) | 2020-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010531688.1A Pending CN111803159A (en) | 2020-06-11 | 2020-06-11 | Bone cement anchor with thread and handle |
Country Status (1)
| Country | Link |
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| CN (1) | CN111803159A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336396A (en) * | 2020-10-27 | 2021-02-09 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Suture anchor and anchor fixing method |
| CN116035638A (en) * | 2022-12-30 | 2023-05-02 | 上海交通大学医学院附属瑞金医院 | A bone cement injection anchor |
| WO2024259980A1 (en) * | 2023-06-20 | 2024-12-26 | 浙江大学医学院附属第二医院 | Bone anchor, implantation handle, and implantation system |
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| EP2486856A2 (en) * | 2011-02-09 | 2012-08-15 | Arthrex, Inc. | Bone anchor for scapholunate construct |
| EP2581046A1 (en) * | 2011-10-16 | 2013-04-17 | Orlando Da Rold | Anchor for fixing tissue in bone |
| US20140324100A1 (en) * | 1999-05-28 | 2014-10-30 | Stephen S. Burkhart | Suture Anchor Device, Kit and Method |
| US20150157310A1 (en) * | 2012-06-05 | 2015-06-11 | Jean-Yves Paul Albert Coillard-Lavirotte | Rotary medical anchor, and medical kit comprising said anchor |
| US9138221B2 (en) * | 2012-09-20 | 2015-09-22 | Medos International Sarl | Anti-backup suture anchor |
| CN105188562A (en) * | 2013-03-06 | 2015-12-23 | 史密夫和内修有限公司 | Microanchors |
| CN204971536U (en) * | 2015-08-12 | 2016-01-20 | 苏州苏南捷迈得医疗器械有限公司 | Multi -angle bone cement side opening backbone hollow rivet |
| CN204971399U (en) * | 2015-08-18 | 2016-01-20 | 孙久一 | Anchor nail suture instrument |
| US20160235398A1 (en) * | 2009-11-10 | 2016-08-18 | Smith & Nephew, Inc. | Tissue Repair Devices |
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2020
- 2020-06-11 CN CN202010531688.1A patent/CN111803159A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140324100A1 (en) * | 1999-05-28 | 2014-10-30 | Stephen S. Burkhart | Suture Anchor Device, Kit and Method |
| US20160235398A1 (en) * | 2009-11-10 | 2016-08-18 | Smith & Nephew, Inc. | Tissue Repair Devices |
| EP2486856A2 (en) * | 2011-02-09 | 2012-08-15 | Arthrex, Inc. | Bone anchor for scapholunate construct |
| EP2581046A1 (en) * | 2011-10-16 | 2013-04-17 | Orlando Da Rold | Anchor for fixing tissue in bone |
| US20150157310A1 (en) * | 2012-06-05 | 2015-06-11 | Jean-Yves Paul Albert Coillard-Lavirotte | Rotary medical anchor, and medical kit comprising said anchor |
| US9138221B2 (en) * | 2012-09-20 | 2015-09-22 | Medos International Sarl | Anti-backup suture anchor |
| CN105188562A (en) * | 2013-03-06 | 2015-12-23 | 史密夫和内修有限公司 | Microanchors |
| CN204971536U (en) * | 2015-08-12 | 2016-01-20 | 苏州苏南捷迈得医疗器械有限公司 | Multi -angle bone cement side opening backbone hollow rivet |
| CN204971399U (en) * | 2015-08-18 | 2016-01-20 | 孙久一 | Anchor nail suture instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336396A (en) * | 2020-10-27 | 2021-02-09 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Suture anchor and anchor fixing method |
| CN116035638A (en) * | 2022-12-30 | 2023-05-02 | 上海交通大学医学院附属瑞金医院 | A bone cement injection anchor |
| WO2024259980A1 (en) * | 2023-06-20 | 2024-12-26 | 浙江大学医学院附属第二医院 | Bone anchor, implantation handle, and implantation system |
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Application publication date: 20201023 |
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