CN115956990A - Interface screw for medical operation and mounting method thereof - Google Patents
Interface screw for medical operation and mounting method thereof Download PDFInfo
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- CN115956990A CN115956990A CN202211656772.1A CN202211656772A CN115956990A CN 115956990 A CN115956990 A CN 115956990A CN 202211656772 A CN202211656772 A CN 202211656772A CN 115956990 A CN115956990 A CN 115956990A
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Abstract
The application relates to the technical field of medical instruments, and particularly discloses an interface screw used in a medical operation and an installation method thereof; the interface screw comprises a screw body and a threaded core rod; a through hole along the axial direction of the nail body is formed in the nail body and penetrates through two ends of the nail body; one end of the nail body is provided with a abdicating groove; the threaded core rod is in threaded connection with the through hole at the inner end of the nail body; the diameter of the threaded core rod is gradually increased from one end facing the outer end of the nail body to the other end; the peripheral surface of the nail body is provided with a plurality of annular bosses which are distributed at intervals along the axial direction of the nail body. The application also discloses an installation method of the interface screw. The interface screw installation in this application is reliable and stable, and has avoided appearing the screw thread to tendon or suture production cutting's problem.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to an interface screw used in a medical operation and an installation method thereof.
Background
Cruciate ligament injury is one of the most common and serious sports injuries, and torn cruciate ligaments cause joint instability, for example, improper treatment can cause knee joint instability, secondary joint cartilage injury, finally cause osteoarthropathy, seriously affect the function of the knee joint, cause limited daily activities of patients, and gradually cause reduction of self-care ability and loss of self-confidence. At present, the method for treating cruciate ligament rupture usually carries out cruciate ligament reconstruction by implanting autologous tendons into a tibial tunnel, and in the anterior and posterior cruciate ligament reconstruction surgery process, an interface screw is a common surgical auxiliary instrument and is mainly used for fixing the tendons into the bone tunnel to ensure the healing of the tendons.
In the related art, after the autologous tendon is implanted into the tibial tunnel, an interface screw is usually used for compression fixation, however, the current interface screw has a simpler structure and generally has the following problems: due to the occupation effect of the transplanted tendon in the bone tunnel, the interface screw is difficult to hold the bone tunnel wall, so the interface screw cannot tightly extrude the bone tunnel wall, the fixing effect is poor, and the forward movement of the transplanted tendon is easy to cause; at the same time, the threads of the interfacial screw may cut the tendon or suture, causing the tensile strength of the tendon or suture to be reduced or to be completely severed.
Disclosure of Invention
In order to improve the stability of the fixation of the interface screw and effectively reduce the damage of the tendon or the suture caused by the cutting of the interface screw. The application provides an interface screw for use in medical procedures and a method of installing the same.
In a first aspect, the present application provides an interface screw for use in a medical procedure, which adopts the following technical solutions:
an interface screw for use in a medical procedure, comprising a shank and a threaded mandrel; a through hole is formed in the nail body along the axial direction of the nail body, and the through hole penetrates through two ends of the nail body;
one end of the nail body is provided with a abdication groove, and the abdication groove extends from the end face of one end of the nail body to the direction of the other end of the nail body along the axial direction of the nail body;
one end of the nail body, which is provided with the abdication groove, is an inner end, and the other end of the nail body is an outer end; the threaded core rod is in threaded connection with the through hole at the inner end of the nail body; the diameter of the threaded core rod is gradually increased from one end of the threaded core rod towards the outer end of the nail body to the other end of the threaded core rod;
the outer peripheral surface of the nail body is provided with a plurality of annular bosses which are distributed at intervals along the axial direction of the nail body.
The interface screw of the present application may be used in procedures such as rotator cuff repair, hip labrum repair, ligament repair, tendon injury repair, and the like. When the device is used, the tendon ligament to be fixed is treated and then wrapped with the ligament, and the inserter is used for knocking the nail body containing the threaded core rod into the beaten bone tunnel; then, the threaded core rod is rotated inwards by using an inserter and other tools, the diameter of the threaded core rod extending into the through hole of the nail body is gradually increased, and the inner end of the nail body is provided with a yielding groove, so that the inner end of the nail body is extruded by the threaded core rod to deform, namely, the inner end of the nail body is propped open, and the fixation of the interface screw is realized.
Through adopting above-mentioned technical scheme, the shortcoming of traditional interface screw has been overcome to the interface screw in this application, can be used to the fixed of tibiofemoral end or thighbone section tendon ligament. The interface screw is implanted into the bone tunnel in a knocking-in mode, continuous previous pressure exists in the implanting process through the action of the annular boss, additional pressure does not need to be applied, and the interface screw can be kept stable in the screwing-in process, so that the movement of a graft is avoided; the interface screw avoids the cutting effect of sharp threads on the tendon or the suture, and ensures the tensile strength of the tendon and the suture; the nail body can be directly contacted with the tendon ligament without damaging or splitting the tendon ligament or a suture, and the selectable transplanted tendon is widened.
Optionally, the nail body is in a shape of a round rod, and the inner end of the nail body is in a conical shape; the outer peripheral surface of the inner end of the nail body is provided with a plurality of first abutting planes, and the first abutting planes are distributed along the circumferential direction of the nail body.
By adopting the technical scheme, in the process of knocking the nail body into the beaten bone tunnel, the inner end of the nail body is in a conical shape to form a guide structure, so that the nail body can accurately and efficiently enter the bone tunnel; set up a plurality of first supports on the inner outer peripheral face of the nail body and lean on the plane, can play limiting displacement, prevent effectively that the nail body from in bone tunnel circumferential direction rotation.
Optionally, the diameter of one end of the annular boss close to the inner end of the nail body is smaller than that of one end of the annular boss close to the outer end of the nail body; a step surface is formed between two adjacent annular bosses.
By adopting the technical scheme, in the process of knocking the nail body into the beaten bone tunnel, the plurality of annular bosses form a multi-level staggered pagoda-shaped structure, so that the outer peripheral surface of the nail body can prop against the inner wall and soft tissues of the bone tunnel, and a continuous locking surface exists in each step of the nail body implantation process, thereby effectively avoiding the movement of a graft and realizing stronger fixation; and the annular boss is pagoda-shaped's structure can not cause the cutting to the tendon ligament, can with tendon ligament direct contact, widened the applicable scene of product.
Optionally, the outer circumferential surface of the annular boss is provided with a plurality of second abutting planes, and the plurality of second abutting planes are distributed along the circumferential direction of the annular boss.
Through adopting above-mentioned technical scheme, the second supports to lean on the plane also can play limiting displacement, prevents effectively that the nail body from circumferential direction rotatory in bone tunnel.
Optionally, the width of the yielding groove is gradually reduced from the notch of the yielding groove to the groove bottom direction of the yielding groove.
Through adopting above-mentioned technical scheme, both be convenient for effectively guide the screw in of screw core stick, also can guarantee the structural strength of the nail body.
Optionally, the tank bottom of the recess of stepping down still is equipped with the arc wall, the recess of stepping down with the arc wall circle is linked together, the width that the recess of stepping down is located the tank bottom is less than the maximum width of arc wall just the recess of stepping down with linking department of arc wall forms the throat portion.
Through adopting above-mentioned technical scheme, the space deformation of nail body inner yields the structure for water droplet shape U type groove, and this design both can guarantee that interface screw does not take place deformation at the implantation in-process, also can guarantee that the screw core stick targets in place the back interface screw deformation controllable.
Optionally, the inner wall of the through hole close to the outer end of the nail body is a smooth section, and the inner wall of the through hole close to the inner end of the nail body is a threaded section with internal threads; the diameter of the threaded section is gradually increased from one end close to the smooth section to the other end; the outer peripheral surface of the threaded core rod is provided with an external thread, the internal thread in the nail body is matched with the external thread on the threaded core rod, and the internal thread and the external thread adopt trapezoidal taper threads; the threaded core rod is in threaded connection with the nail body through the internal thread in the nail body and the external thread on the threaded core rod.
Through adopting above-mentioned technical scheme, the diameter of screw thread section is changed, can cooperate the screw core stick, increases the speed that the nail body inner struts the deformation gradually to promote the steadiness, the screw core stick all adopts trapezoidal awl thread design with the nail body, and this structure can bear great axial load, can produce the auto-lock effect after the product screw in targets in place, avoids the product inefficacy.
Optionally, the end face of one end of the threaded mandrel close to the inner end of the nail body is an arc-shaped curved surface; one end of the threaded core rod, which is close to the outer end of the nail body, is provided with a hexagonal hole or a quincuncial hole.
By adopting the technical scheme, the hexagonal hole or quincuncial hole structure is adopted in the threaded core rod, and the structure can disperse screwing resistance and prevent the threaded core rod from being damaged.
In a second aspect, the application provides an installation method of an interface screw in a medical operation, which adopts the following technical scheme:
a mounting method of an interface screw in a medical operation is used for mounting the interface screw, and comprises the following steps:
s1: screwing a threaded core rod of the interface screw into the through hole of the nail body from the inner end of the nail body, wherein the end with the larger diameter of the threaded core rod is positioned outside the through hole of the nail body;
s2: after the tendon ligament to be fixed is processed and the wrapping ligament passes through the beaten bone tunnel, a nail body with a threaded core rod is knocked into the beaten bone tunnel by using an inserter;
s3: inserting a tool into the through hole of the nail body and rotating the threaded core rod to enable the threaded core rod to move into the through hole of the nail body;
s4: the thread of the threaded core rod is completely screwed into the through hole of the nail body, and the threaded core rod struts the inner end of the nail body to finish the fixation.
By adopting the technical scheme, the screw body is enabled to support the bone tunnel and soft tissues in a manner of rotating the threaded core rod after the screw body is knocked into the bone tunnel, so that stronger fixation is realized; the operation is simple, the operation is convenient and fast, and the fixing effect is reliable.
Optionally, in S2 and S3, an inserter with a screw driver is used for operation, and after the inserter is used for driving the nail body into the driven bone tunnel in S2, a safety pin at the tail of the inserter is pulled to drive the screw driver to a working position; the driver is screwed to drive the threaded core rod to rotate.
By adopting the technical scheme, the whole operation can be completed by only using one tool, so that the operation is more convenient and faster.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through setting up the screw thread plug of specific shape in this application to set up the recess of stepping down in the inner of the nail body, make the inner deformation of internal rotation screw thread plug extrusion nail body, can strut the inner of the nail body, thereby realize that the steady of interface screw leans on fixedly.
2. The interface screw in this application implants the bone tunnel with the form of pounding, makes its implantation process all have and last preceding pressure through the effect of annular boss, need not exert extra pressure, and interface screw twists the in-process and can keep firm to avoid the removal of graft.
3. Interface screw in this application has avoided sharp screw thread to produce the cutting effect to tendon or suture, has guaranteed the tensile strength of tendon and suture.
4. The peripheral face of the nail body does not have sharp threads in the application, and the nail body can be directly contacted with the tendon ligament without damaging or cutting the tendon ligament or a suture, so that the selectable transplanted tendon is widened.
5. The screw body is enabled to abut against the bone tunnel and soft tissues in a manner of rotating the threaded core rod after the screw body is knocked into the bone tunnel, so that stronger fixation is realized; the operation is simple, the operation is convenient and fast, and the fixing effect is reliable.
Drawings
Fig. 1 is a perspective view of an interface screw according to the present application.
Fig. 2 is a cross-sectional structural schematic view of an interface screw of the present application.
Fig. 3 is a schematic perspective view of the body of the interface screw according to the present application.
Fig. 4 is a perspective view of the threaded mandrel of the interface screw of the present application.
In the figure, 1, a nail body; 11. a through hole; 11a, a smooth section; 11b, a threaded section; 11b1, internal threads; 12. a yielding groove; 13. an inner end; 14. an outer end; 15. an annular boss; 15a, a second abutment plane; 15b, step surfaces; 16. a first abutment plane; 17. an arc-shaped slot; 18. a necking-in portion; 2. a threaded mandrel; 21. an arc-shaped curved surface; 22. a hexagonal hole; 23. and (4) external threads.
Detailed Description
The present application will be described in further detail below with reference to fig. 1 to 4.
The embodiment discloses an interface screw used in medical operations, which can be used in operations such as rotator cuff repair, hip labrum repair, ligament repair, tendon injury repair and the like.
Referring to fig. 1 and 2, an interface screw for use in medical procedures includes a shank 1 and a threaded mandrel 2; the nail body 1 is in a round rod shape. A through hole 11 along the axial direction of the nail body 1 is formed in the nail body 1, and the through hole 11 penetrates through two ends of the nail body 1; one end of the nail body 1 is provided with a yielding groove 12, and the yielding groove 12 extends from the end face of one end of the nail body 1 to the direction of the other end of the nail body 1 along the axial direction of the nail body 1; one end of the nail body 1 with the abdication groove 12 is defined as an inner end 13, and the other end is defined as an outer end 14; the inner end 13 of the nail body 1 is conical; the outer peripheral surface of the inner end 13 of the nail body 1 is provided with a plurality of first abutting planes 16, and the plurality of first abutting planes 16 are distributed along the circumferential direction of the nail body 1.
Referring to fig. 3, a plurality of annular bosses 15 are arranged on the outer circumferential surface of the nail body 1, and the annular bosses 15 are distributed at intervals along the axial direction of the nail body 1; the outer circumferential surface of the annular boss 15 has a plurality of second abutting planes 15a, and the plurality of second abutting planes 15a are distributed along the circumferential direction of the annular boss 15. The diameter of one end of the annular boss 15 close to the inner end 13 of the nail body 1 is smaller than that of one end of the annular boss 15 close to the outer end 14 of the nail body 1; a step surface 15b is formed between every two adjacent annular bosses 15, and in the process that the nail body 1 is knocked into a beaten bone tunnel, the annular bosses 15 form a multi-level staggered pagoda-shaped structure, so that the outer peripheral surface of the nail body 1 can prop against the inner wall and soft tissues of the bone tunnel, and a continuous locking surface exists in each step of the implantation process of the nail body 1, thereby effectively avoiding the movement of a graft and realizing stronger fixation; and annular boss 15 is pagoda-shaped's structure can not cause the cutting to the tendon ligament, can with tendon ligament direct contact, has widened the applicable scene of product.
Referring to fig. 3, the width of the abdicating groove 12 gradually decreases from the notch of the abdicating groove 12 to the groove bottom direction of the abdicating groove 12; the groove bottom of the abdicating groove 12 is further provided with an arc-shaped groove 17, the abdicating groove 12 is communicated with the arc-shaped groove 17 in a circle mode, the width of the abdicating groove 12 at the groove bottom is smaller than the maximum width of the arc-shaped groove 17, and a junction of the abdicating groove 12 and the arc-shaped groove 17 forms a necking part 18, so that the whole deformation abdicating structure is a water drop-shaped U-shaped groove, the design can ensure that the interface screw is not deformed in the implantation process, and the deformation of the interface screw can be controlled after the threaded core rod 2 is in place.
Referring to fig. 2 and 4, the threaded core rod 2 is screwed in the through hole 11 at the inner end 13 of the nail body 1; the diameter of the threaded core rod 2 gradually increases from one end towards the outer end 14 of the nail body 1 to the other end. The inner wall of the through hole 11 close to the outer end 14 of the nail body 1 is a smooth section 11a, and the inner wall of the through hole 11 close to the inner end 13 of the nail body 1 is a threaded section 11b with internal threads 11b 1; the diameter of the threaded section 11b gradually increases from one end close to the smooth section 11a to the other end; the outer peripheral surface of the threaded core rod 2 is provided with an external thread 23, the internal thread 11b1 in the nail body 1 is matched with the external thread 23 on the threaded core rod 2, and the two adopt trapezoidal taper threads; the threaded core rod 2 is in threaded connection with the nail body 1 through an internal thread 11b1 in the nail body 1 and an external thread 23 on the threaded core rod 2; the design can bear larger axial load, and can generate self-locking effect after the product is screwed in place, thereby avoiding the product from losing efficacy.
Referring to fig. 2 and 4, the end surface of the threaded core rod 2 close to the inner end 13 of the nail body 1 is an arc-shaped curved surface 21; the end of the threaded core rod 2 close to the outer end 14 of the nail body 1 is provided with a hexagonal hole 22 or a quincunx hole. This structure can disperse the screwing resistance and prevent the threaded core rod 2 from being damaged.
The embodiment principle is as follows: when in use, the tendon ligament to be fixed is treated and then wrapped with the ligament, and the inserter is used for knocking the nail body 1 with the threaded core rod 2 into the beaten bone tunnel; then, the threaded core rod 2 is rotated inwards by using a tool such as an inserter, the diameter of the threaded core rod 2 extending into the through hole 11 of the nail body 1 is gradually increased, and the inner end 13 of the nail body 1 is provided with a yielding groove 12, so that the inner end 13 of the nail body 1 is extruded by the threaded core rod 2 to deform, namely, the inner end 13 of the nail body 1 is expanded, and the fixation of the interface screw is realized.
The interface screw overcomes the defects of the traditional interface screw and can be used for fixing tendon ligaments of a tibia end or a femur section. The interface screw is implanted into a bone tunnel in a knocking-in mode, continuous previous pressure exists in the implanting process of the interface screw through the action of the annular boss 15, additional pressure does not need to be applied, and the interface screw can be kept stable in the screwing-in process, so that the movement of a graft is avoided; the interface screw avoids the cutting effect of sharp threads on the tendon or the suture, and ensures the tensile strength of the tendon and the suture; the nail body 1 can be directly contacted with the tendon ligament without damaging or cutting the tendon ligament or the suture, thereby widening the range of the alternative transplanted tendon.
In the application, the inner end 13 of the nail body 1 is conical to form a guide structure, so that the nail body 1 can conveniently enter a bone tunnel accurately and efficiently in the process of knocking the nail body 1 into the beaten bone tunnel; the first abutting plane 16 on the outer peripheral surface of the inner end 13 of the nail body 1 and the second abutting plane 15a on the annular boss 15 can play a limiting role, and the nail body 1 is effectively prevented from rotating in the bone tunnel in the circumferential direction.
The embodiment also discloses an installation method of the interface screw in the medical operation, which is used for installing the interface screw and comprises the following steps:
s1: screwing the threaded core rod 2 of the interface screw into the through hole 11 of the nail body 1 from the inner end 13 of the nail body 1, wherein the end with the larger diameter of the threaded core rod 2 is positioned outside the through hole 11 of the nail body 1;
s2: after tendon ligaments needing to be fixed are processed and wrapped with covering ligaments and pass through a beaten bone tunnel, a nail body 1 with a threaded core rod 2 is knocked into the beaten bone tunnel by using an inserter;
s3: inserting a tool into the through hole 11 of the nail body 1 and rotating the threaded mandrel 2 to move the threaded mandrel 2 into the through hole 11 of the nail body 1;
s4: the thread of the threaded core rod 2 is completely screwed into the through hole 11 of the nail body 1, and the threaded core rod 2 props up the inner end 13 of the nail body 1 to finish the fixation.
As a further improvement, in the above S2 and S3, an inserter with a driver is used for operation, the inserter comprises a sleeve rod for driving the nail body 1 into the bone tunnel and an insertion rod slidably inserted into the sleeve rod, one end of the insertion rod is connected to an inserter handle and can be limited by a safety pin, a pushing block is further arranged on the inserter handle and is used for pushing the insertion rod to move in the sleeve rod, and the other end of the insertion rod can extend out of the end of the sleeve rod and is matched with the hexagonal hole 22 or the quincuncial hole at the end of the threaded core rod 2; in S2, the inserter is utilized to knock the nail body 1 into the beaten bone tunnel, then a safety pin at the tail of the inserter is pulled, and the screw-in device is pulled to a working position; the driver is screwed to drive the threaded core rod 2 to rotate.
The embodiment principle is as follows: in the application, the screw body 1 is pressed against the bone tunnel and soft tissues by adopting a mode of rotating the threaded core rod 2 after the screw body 1 is knocked into the bone tunnel, so that stronger fixation is realized; the operation is simple, the operation is convenient and fast, and the fixing effect is reliable. The whole installation operation of whole interface screw can be accomplished to whole only need to use a instrument, and is high-efficient reliable.
The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: 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 (10)
1. An interface screw for use in medical procedures, comprising a shank (1) and a threaded mandrel (2); a through hole (11) along the axial direction of the nail body (1) is formed in the nail body (1), and the through hole (11) penetrates through two ends of the nail body (1); the nail is characterized in that one end of the nail body (1) is provided with a yielding groove (12), and the yielding groove (12) extends from one end face of the nail body (1) to the other end of the nail body (1) along the axial direction of the nail body (1);
one end of the nail body (1) with the abdicating groove (12) is an inner end (13), and the other end is an outer end (14); the threaded core rod (2) is in threaded connection with a through hole (11) of the inner end (13) of the nail body (1); the diameter of the threaded core rod (2) is gradually increased from one end to the other end of the outer end (14) of the nail body (1);
the nail is characterized in that a plurality of annular bosses (15) are arranged on the outer peripheral surface of the nail body (1), and the annular bosses (15) are distributed at intervals along the axial direction of the nail body (1).
2. The interface screw for use in medical procedures according to claim 1, wherein the shank (1) is of round rod shape, the inner end (13) of the shank (1) being of conical shape; the outer peripheral surface of the inner end (13) of the nail body (1) is provided with a plurality of first abutting planes (16), and the first abutting planes (16) are distributed along the circumferential direction of the nail body (1).
3. The interface screw for use in medical procedures according to claim 1 or 2, wherein the diameter of the end of the annular boss (15) near the inner end (13) of the shank (1) is smaller than the diameter of the end of the annular boss (15) near the outer end (14) of the shank (1); a step surface (15 b) is formed between two adjacent annular bosses (15).
4. The interface screw for use in medical procedures according to claim 3, characterized in that said annular boss (15) has on its outer peripheral surface a plurality of second abutment planes (15 a), a plurality of said second abutment planes (15 a) being distributed along the circumference of said annular boss (15).
5. The interface screw for use in medical procedures according to claim 1 or 2, wherein the width of the abdicating groove (12) is gradually reduced from the notch of the abdicating groove (12) to the groove bottom direction of the abdicating groove (12).
6. The interface screw used in the medical operation according to claim 5, wherein the groove bottom of the abdicating groove (12) is further provided with an arc-shaped groove (17), the abdicating groove (12) is circularly communicated with the arc-shaped groove (17), the width of the abdicating groove (12) at the groove bottom is less than the maximum width of the arc-shaped groove (17) and the junction of the abdicating groove (12) and the arc-shaped groove (17) forms a necking part (18).
7. The interface screw for use in medical procedures according to claim 1 or 2, wherein the inner wall of the through hole (11) near the outer end (14) of the shank (1) is a smooth section (11 a), and the inner wall of the through hole (11) near the inner end (13) of the shank (1) is a threaded section (11 b) with internal threads (11 b 1); the diameter of the threaded section (11 b) is gradually increased from one end close to the smooth section (11 a) to the other end; the outer peripheral surface of the threaded core rod (2) is provided with an external thread (23), an internal thread (11 b 1) in the nail body (1) is matched with the external thread (23) on the threaded core rod (2) and adopts a trapezoidal taper thread; the threaded core rod (2) is in threaded connection with the nail body (1) through an internal thread (11 b 1) in the nail body (1) and an external thread (23) on the threaded core rod (2).
8. The interface screw for use in medical procedures according to claim 1 or 2, wherein the end surface of the threaded core rod (2) close to the inner end (13) of the shank (1) is an arc-shaped curved surface (21); one end of the threaded core rod (2) close to the outer end (14) of the nail body (1) is provided with a hexagonal hole (22) or a quincuncial hole.
9. A method of installing an interface screw for use in medical procedures according to any one of claims 1 to 8, wherein the method of installing comprises the steps of:
s1: screwing a threaded core rod (2) of the interface screw into a through hole (11) of the nail body (1) from the inner end (13) of the nail body (1), wherein the end with the larger diameter of the threaded core rod (2) is positioned outside the through hole (11) of the nail body (1);
s2: after the tendon ligament to be fixed is processed and the wrapping ligament passes through the beaten bone tunnel, the nail body (1) with the threaded core rod (2) is knocked into the beaten bone tunnel by using an inserter;
s3: inserting a tool into the through hole (11) of the nail body (1) and rotating the threaded mandrel (2) to move the threaded mandrel (2) into the through hole (11) of the nail body (1);
s4: the thread of the threaded core rod (2) is completely screwed into the through hole (11) of the nail body (1), and the threaded core rod (2) props open the inner end (13) of the nail body (1) to finish the fixation.
10. The method for installing an interface screw used in a medical operation according to claim 9, wherein in S2 and S3, an inserter with a driver is used for operation, and after the nail body (1) is driven into the bone tunnel by using the inserter in S2, a safety pin at the tail of the inserter is pulled to drive the driver to a working position; the driver is screwed to drive the threaded core rod (2) to rotate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211656772.1A CN115956990A (en) | 2022-12-22 | 2022-12-22 | Interface screw for medical operation and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211656772.1A CN115956990A (en) | 2022-12-22 | 2022-12-22 | Interface screw for medical operation and mounting method thereof |
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| CN115956990A true CN115956990A (en) | 2023-04-14 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845110A (en) * | 2014-03-19 | 2014-06-11 | 中国人民解放军第四军医大学 | Multifunctional bone screw applied to bone with poor sclerotin condition |
| CN205658941U (en) * | 2016-02-18 | 2016-10-26 | 杭州锐健马斯汀医疗器材有限公司 | Foraminiferous interface screw |
| CN110974328A (en) * | 2019-12-29 | 2020-04-10 | 长春圣博玛生物材料有限公司 | Anchor with wire |
| CN110996821A (en) * | 2017-08-14 | 2020-04-10 | 祖尔格布莱特有限公司 | Bone screw |
| CN114869378A (en) * | 2022-05-24 | 2022-08-09 | 北京天星博迈迪医疗器械有限公司 | Interface nail |
| CN115005907A (en) * | 2022-05-25 | 2022-09-06 | 尤尼泰科(重庆)医疗科技有限公司 | Anchor with wire |
| CN217827961U (en) * | 2022-07-28 | 2022-11-18 | 宁波拜锐生物科技有限公司 | Barbed suture anchor assembly |
-
2022
- 2022-12-22 CN CN202211656772.1A patent/CN115956990A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845110A (en) * | 2014-03-19 | 2014-06-11 | 中国人民解放军第四军医大学 | Multifunctional bone screw applied to bone with poor sclerotin condition |
| CN205658941U (en) * | 2016-02-18 | 2016-10-26 | 杭州锐健马斯汀医疗器材有限公司 | Foraminiferous interface screw |
| CN110996821A (en) * | 2017-08-14 | 2020-04-10 | 祖尔格布莱特有限公司 | Bone screw |
| CN110974328A (en) * | 2019-12-29 | 2020-04-10 | 长春圣博玛生物材料有限公司 | Anchor with wire |
| CN114869378A (en) * | 2022-05-24 | 2022-08-09 | 北京天星博迈迪医疗器械有限公司 | Interface nail |
| CN115005907A (en) * | 2022-05-25 | 2022-09-06 | 尤尼泰科(重庆)医疗科技有限公司 | Anchor with wire |
| CN217827961U (en) * | 2022-07-28 | 2022-11-18 | 宁波拜锐生物科技有限公司 | Barbed suture anchor assembly |
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