CN113520513A - Bone-taking and pressure-reducing bone grafting device with functions of protecting hip and minimally invasive percutaneous and accurate positioning - Google Patents

Abstract

Translated fromChinese

本发明公开了一种保髋经皮微创精准定位取骨减压植骨装置，涉及医疗器械技术领域，能够根据每一个患者前倾角及颈干角参数，精准调控其角度，实现股骨头坏死区域精准定位，精准辅助髓芯钻孔对坏死区域充分减压。还能在经皮、闭合、微创手术下，重新利用钻孔孔道骨、移植物完整投送、手术时间缩短、手术创伤减小的效果。一种保髋经皮微创精准定位取骨减压植骨装置包括：定位导向构件以及取骨植骨构件。定位针穿过定位导向构件并插设在骨质中。定位导向构件用于调整定位针的角度和位置。取骨植骨构件可套设在定位针上。取骨植骨构件用于取出股骨头坏死病灶及头颈内健康骨质并植入填充材料。

The invention discloses a hip-preserving percutaneous minimally invasive precise positioning bone extraction and decompression bone grafting device, which relates to the technical field of medical devices, and can accurately control the angle of each patient's anteversion angle and neck-shaft angle to realize femoral head necrosis. Precise positioning of the area, and precise auxiliary core drilling to fully decompress the necrotic area. Under percutaneous, closed and minimally invasive surgery, the pierced bone can be reused, the graft can be delivered completely, the operation time can be shortened, and the surgical trauma can be reduced. A hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression and bone grafting device comprises: a positioning guide member and a bone extraction and bone grafting member. The positioning needle passes through the positioning guide member and is inserted into the bone. The positioning guide member is used to adjust the angle and position of the positioning needle. The bone-extracting and bone-grafting component can be sleeved on the positioning pin. The bone grafting component is used to remove the necrotic lesions of the femoral head and healthy bone in the head and neck and implant filling materials.

Description

Bone-taking and pressure-reducing bone grafting device with functions of protecting hip and minimally invasive percutaneous and accurate positioning

Technical Field

The invention relates to the technical field of medical instruments, in particular to a hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device.

Background

Femoral head necrosis is a common clinically intractable disease, and if the femoral head necrosis is treated improperly, femoral head collapse and hip joint function damage can be caused, so that the hip protection treatment before femoral head collapse (early femoral head necrosis) has important significance. At present, a femoral head core drilling decompression method is mainly used, high pressure in a femoral head can be reduced through drilling, venous reflux is improved, a channel penetrates through a sclerosis belt, and a channel is opened for the growth of a new blood vessel in the femoral head after operation. Meanwhile, the artificial bone, the allogeneic bone, the autologous bone, the mesenchymal stem cells and the biological material can be implanted into the necrotic area in the femoral head through the decompression channel, so that the creeping replacement and the tissue repair of the dead bone are promoted.

However, the current core drilling decompression hip protection surgery has the following defects:

the necrotic area is difficult to locate due to the operation of an operator by subjective experience, the operator needs to perform C-arm fluoroscopy for many times in the operation, the location angles (the anteversion angle and the cervical shaft angle) are adjusted, and the operation wound is large. The X-ray repeated fluoroscopy, groping and positioning can prolong the operation time while increasing the radiation quantity. And the marrow core drilling process causes complete damage and waste of healthy bone in the femoral head and neck. After the medullary core is drilled, the necrotic area in the femoral head needs to be enlarged, drilled and decompressed, and the effective enlarging and decompressing operation is difficult to perform due to the limited diameter of a drilling channel; the marrow core needs to be drilled and decompressed through a drilling channel to implant bone or related graft materials in the necrotic area, the prior technical scheme is that the operation is directly carried out from the cortex outside the femur through a pore channel by hands, the delivery is difficult and the graft materials are wasted. The defects can cause long operation and anesthesia time, large operation wound, difficult implantation or delivery of the implant, low experience of doctors, high medical cost and poor clinical effect, and are not beneficial to the clinical popularization of the operation.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art, and provides a hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device which can realize the following functions under percutaneous, closed and minimally invasive operations: 1. the angle of each patient can be accurately regulated and controlled according to specific parameters of the anteversion angle and the cervical shaft angle of each patient, so that accurate positioning of femoral head necrosis focuses is realized, and full decompression of a necrotic area by core drilling is accurately assisted; 2. in the process of drilling and decompressing the medullary core, the damage and the waste of the healthy bone inside the head and neck of the femur are avoided, the taken out healthy bone mixed filling material can be filled into the focus again, and the reutilization of the autogenous bone is realized; 3. under a narrow space in the pressure reducing pore canal, the reaming and pressure reduction of the necrotic focus area are realized; 4. the complete delivery of the graft is realized, and the delivery difficulty and waste are avoided. The defects of long operation and anesthesia time, large operation wound, difficult implantation or delivery of the implant, low experience of doctors, high medical cost, poor clinical effect and the like are avoided.

According to a first aspect of the invention, a hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device is provided, which comprises a positioning guide component, a positioning needle passes through the positioning guide component and is inserted into bone, and the positioning guide component is used for adjusting the angle and the position of the positioning needle; and the bone taking and grafting component can be sleeved on the positioning needle and is used for taking out the femoral head necrosis focus and the healthy bone in the head and neck and implanting filling materials.

Has the advantages that: a device for protecting hip, taking bone, decompressing and implanting bone through percutaneous minimally invasive precise positioning comprises a positioning guide component and a bone taking and implanting component. The positioning guide component can accurately regulate and control the drilling angle of each patient according to the parameters of the anteversion angle and the shaft angle of each patient, so that the femoral head necrosis area is accurately positioned, and the marrow core drilling is accurately assisted to fully reduce the pressure of the necrosis area. The bone taking and grafting component can reuse the drilled hole bone under percutaneous, closed and minimally invasive operations, and achieves the effects of complete delivery of the graft, shortened operation time, reduced operation trauma and the like. The front end of the positioning guide component is designed to be blunt, soft tissue interference can be avoided through the blunt design, the operation process is optimized, and operation trauma is reduced. Thereby achieving the goal of minimally invasive surgery. The hip-protecting percutaneous minimally invasive accurate positioning bone-taking and pressure-reducing bone grafting device can realize rapid positioning, rapid bone-taking and rapid delivery of filling materials, greatly improves the speed of the operation, reduces the cost of the operation, and is beneficial to popularization of the operation.

According to the invention, the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device comprises a positioning guide member and a positioning guide component, wherein the positioning guide member comprises: the corner piece is used for adjusting the angle of the positioning needle; and the positioning needle penetrates through the translation piece and is inserted into the bone, and the translation piece is used for adjusting the position of the positioning needle.

The invention provides a hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device, which is characterized in that a corner piece comprises: a first substrate; the first basal body is provided with a first base, the positioning pin penetrates through the first base and is inserted into a bone, the first base is fixed by the first base, two ends of the first base are respectively a first insertion end and a first insertion end, the first base comprises a plurality of first channels, and the first channels share the same first insertion end; the adjusting channel is arranged on the first base body, the positioning needle penetrates through the adjusting channel and is inserted into bone, the adjusting inserting end and the adjusting inserting end are respectively arranged at two ends of the adjusting channel, the number of the adjusting channels is multiple, and the adjusting channels share the same adjusting inserting end.

According to the invention, the hip-protecting percutaneous minimally invasive precise positioning bone-taking pressure-reducing bone grafting device comprises a translation part and a support part, wherein the translation part comprises: a second substrate; and the positioning through holes are formed in the second base body, the positioning needles penetrate through the positioning through holes and are inserted into bone, and the plurality of positioning through holes are formed.

According to the hip-protecting percutaneous minimally invasive precise-positioning bone-taking and pressure-reducing bone grafting device, one end of the second base body is an arc end, and soft tissue interference can be avoided due to the arc end.

According to the invention, the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device comprises: the positioning sleeve can be sleeved on the positioning needle; the bone taking kit can be sleeved on the positioning sleeve and is used for taking out necrotic lesions and healthy sclerotin in the head and neck; and the bone grafting kit is connected with the bone taking kit and is used for implanting filling materials.

According to the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device, the inner diameter of the positioning sleeve is equal to the diameter of the positioning needle.

According to the invention, the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device comprises: the handle is used for holding and provided with a first through hole; the bone saw is detachably arranged on the handle, a second through hole is formed in the bone saw, and the second through hole is communicated with the first through hole; the bone taking part can penetrate through the handle and the bone saw and is screwed into the bone, one end of the bone taking part is a threaded end, the other end of the bone taking part is a handle end, and the threaded end can be drilled into the bone; and the depth limiting device is sleeved on the bone saw and used for limiting the bone taking depth of the bone saw.

According to the invention, the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device comprises: the bone grafting inlet piece is detachably arranged on the handle and communicated with the first through hole; and the ejector rod can be inserted into the first through hole and the second through hole and is used for abutting against the filling material to the femoral head necrosis focus.

According to the hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device, the bone-taking and bone-grafting component further comprises a reaming and pressure-reducing component, and the reaming and pressure-reducing component comprises: the pressure reducing hole expanding rod can be inserted into a bone channel formed in the bone taking kit; the pressure reduction guide hole is formed in the pressure reduction reaming rod and comprises a first pore passage and a second pore passage, the first pore passage is communicated with the second pore passage, the joint of the first pore passage and the second pore passage is in smooth transition, the first pore passage and the second pore passage form a certain angle, and the included angle between the axes of the first pore passage and the second pore passage is 0-30 degrees; and the decompression reaming needle is inserted from one end of the decompression guide hole and penetrates out from the other end of the decompression guide hole, and the decompression reaming needle can be bent at a certain angle along the decompression guide hole and then extends out for reaming and decompressing.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of an angle fine-tuning device according to a preferred embodiment of the present invention;

FIG. 3 is a left side view of the fine angle adjustment device according to the preferred embodiment of the present invention;

FIG. 4 is a right side view of the fine angle adjustment device according to the preferred embodiment of the present invention;

FIG. 5 is a cross-sectional view of section A-A of FIG. 4;

FIG. 6 is a schematic diagram of a distance fine-tuning assembly according to a preferred embodiment of the present invention;

FIG. 7 is a cross-sectional view of a distance adjustment assembly in accordance with a preferred embodiment of the present invention;

FIG. 8 is a first schematic structural view of a positioning guide member according to a second embodiment of the present invention;

FIG. 9 is a second schematic structural view of a positioning guide member according to a second embodiment of the present invention;

FIG. 10 is a schematic structural view of a bone-taking and bone-grafting member according to a preferred embodiment of the present invention;

FIG. 11 is an elevation view of a bone harvesting kit according to a preferred embodiment of the present invention (bone parts omitted);

FIG. 12 is a cross-sectional view of section B-B of FIG. 11;

FIG. 13 is a schematic structural view of a bone removal member according to a preferred embodiment of the present invention;

FIG. 14 is a schematic view of a reaming pressure reducing member in accordance with a preferred embodiment of the invention;

FIG. 15 is a cross-sectional view of a reaming pressure relief member in accordance with a preferred embodiment of the invention;

FIG. 16 is a cross-sectional view of a pressure reducing reamer spindle according to a preferred embodiment of the present invention;

FIG. 17 is a schematic view of a bone graft inlet according to a preferred embodiment of the present invention;

FIG. 18 is a schematic structural view of a knock-out pin according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a hip-protecting percutaneous minimally invasive precise positioning bone-taking and pressure-reducing bone grafting device comprises: apositioning guide member 10 and a bone-taking bone-grafting member 20. The positioning pin 1 passes through thepositioning guide member 10 and is inserted into the bone substance. Thepositioning guide member 10 is used to adjust the angle and position of the positioning pin 1. The bone taking andgrafting component 20 can be sleeved on the positioning needle 1. Thebone grafting member 20 is used to extract a necrotic portion of bone and implant a filling material.

Referring to fig. 1 to 7, thepositioning guide member 10 includes: acorner piece 11 and atranslation piece 12. The positioning pin 1 is inserted through thecorner piece 11 and into the bone. Thecorner piece 11 is used for adjusting the angle of the positioning pin 1. The positioning pin 1 is inserted through thetranslator 12 and into the bone mass. Thetranslator 12 is used to adjust the position of the locator pin 1.

Referring to fig. 2 to 5, thecorner piece 11 includes: afirst substrate 111, areference channel 112 and anadjustment channel 113. Thereference channel 112 opens on thefirst base 111. The positioning pin 1 is inserted through thereference channel 112 and into the bone substance. Thereference channel 112 is used to fix thefirst substrate 111. The two ends of thereference channel 112 are areference insertion end 112a and areference insertion end 112b, respectively. Thereference channels 112 are several.Several reference channels 112 share the same reference plug-in 112 b. Theadjustment passage 113 opens on thefirst base 111. The positioning pin 1 is inserted through theadjustment channel 113 into the bone substance. The two ends of the adjustingchannel 113 are an adjustinginsertion end 113a and an adjustinginsertion end 113 b. The number of theadjustment passages 113 is several. Theadjustment channels 113 share the sameadjustment insertion end 113 b.

It can be understood that, when thecorner piece 11 is used, firstly, a positioning needle 1 penetrates into a bone substance to be used as a positioning reference of an operation, if the angle of the first positioning needle 1 is not the optimal angle, thereference channel 112 of thecorner piece 11 can be sleeved in the first positioning needle 1 in alignment, then, aproper adjusting channel 113 is found, and the second positioning needle 1 with the optimal angle is inserted, so that the optimal scheme of the operation is realized, the operation effect is improved, the difficulty of the subsequent operation is reduced, and the operation time is reduced.

Of course, it should be noted that in some embodiments of the present invention, the included angle between the axes of twoadjacent adjustment channels 113 is 3 degrees, and the maximum adjustment angle is 15 degrees, and in other embodiments of the present invention, the included angle of theadjustment channels 113 may be changed by those skilled in the art according to actual needs. Similarly, the maximum adjustment angle can also be achieved by increasing theadjustment channels 113 or adjusting the included angle between theadjustment channels 113.

It should be noted that, of course, thereference channel 112 and theadjustment channel 113 are interchangeable during the actual use of thecorner member 11, that is, when the first positioning pin 1 is referenced to thereference channel 112, the second positioning pin 1 selects an optimal angle of theadjustment channel 113 to insert. When the first positioning pin 1 is based on theadjustment channel 113, the second positioning pin 1 selects an optimal angle of thereference channel 112 to insert. Both can achieve the purpose of adjusting the angle of the positioning needle 1.

Of course, it should be noted that the end of thecorner piece 11 facing the surgical wound is designed to be blunt, so as to avoid interference of soft tissue and reduce the difficulty of the surgery.

Referring to fig. 6 to 7, thetranslation member 12 includes: asecond base 121 and a positioning throughhole 122. The positioning throughhole 122 is opened on thesecond base 121. The positioning pin 1 passes through the positioning throughhole 122 and is inserted into the bone. The positioning throughholes 122 are several. The distance between the axes of any two adjacent positioning throughholes 122 is 3mm, and the maximum adjusting distance is 12 mm.

It is understood that thetranslation member 121 can achieve a maximum translation range of 12mm, and of course, a person skilled in the art can adaptively modify the adjustment range and the adjustment precision of thetranslation member 121 by adjusting the distance between any two adjacent positioning throughholes 122 according to actual requirements.

It is of course worth noting that the maximum range of adjustment of thetranslator 12 is 12mm, complying with the concept of a minimally invasive surgical incision of less than 15 mm.

It can be understood that, when the insertion angle of the positioning needle 1 is correct, but the position is slightly deviated, one positioning throughhole 122 can be selected to be sleeved in the positioning needle 1 in thetranslation member 12, then another suitable positioning throughhole 122 is selected, and a second positioning needle 1 is inserted, that is, any positioning throughhole 122 can be used as a positioning reference for position adjustment, so that the purpose of adjusting the position of the positioning needle 1 is achieved, the optimal surgical scheme is realized, the surgical effect is improved, the difficulty of subsequent surgery is reduced, and the surgical time is reduced.

Further, referring to fig. 6, one end of thesecond base 121 is an arc end, and the arc end can avoid soft tissue interference.

Of course, it should be noted that the arc end of thesecond base 121 is the end facing the surgical wound, so as to avoid the interference of soft tissue.

Certainly, it is worth explaining that thepositioning guide member 10 can achieve the beneficial effects of accurate positioning of the femoral head necrosis area, shortened operation time, reduced operation trauma, reduced X-ray transmission times in the operation and the like under the condition of only percutaneous, closed and minimally invasive operations. Reduces the operation trauma and is beneficial to the postoperative recovery of the patient.

Meanwhile, compared with the prior art, thepositioning guide member 10 does not need to be customized specifically, and has wide applicability. Meanwhile, the medical disinfection device can be repeatedly used after disinfection, is more economical and practical, can reduce the treatment cost of patients, and is convenient for hospital use and popularization.

Of course, referring to fig. 8 and 9, in the second embodiment of the present invention, thecorner member 11 and thetranslation member 12 may be integrated into a whole, and thereference channel 112, theadjustment channel 113 and the positioning throughhole 122 may be disposed on a single substrate.

Referring to fig. 1 and 10, the bone-takingbone graft member 20 includes: a locatingsleeve 21, abone taking kit 22 and abone grafting kit 23. Thepositioning sleeve 21 can be sleeved on the positioning needle 1. Thebone removal kit 22 may be fitted over thepositioning sleeve 21. Thebone removal kit 22 is used for removing necrotic lesions and healthy bone in the head and neck. Abone grafting kit 23 is connected to thebone removal kit 22 for implantation of a filling material.

Further, the inner diameter of thepositioning sleeve 21 is equal to the diameter of the positioning needle 1.

It can be understood that the inner diameter of thepositioning sleeve 21 is equal to the diameter of the positioning needle 1, thepositioning sleeve 21 is sleeved on the fixed positioning needle 1, and then thebone taking kit 22 is sleeved on thepositioning sleeve 21, so that thebone taking kit 22 can be fixed.

Referring to fig. 10 to 13, the bone-takingkit 22 includes: ahandle 221, a bone saw 222, and abone removal member 223. Thehandle 221 is used for gripping. Thehandle 221 has a first throughhole 221 a. The bone saw 222 is detachably disposed on thehandle 221. The bone saw 222 is provided with a second throughhole 222 a. The second throughhole 222a communicates with the first throughhole 221 a.Bone removal member 223 may be passed throughhandle 221 and bone saw 222 and threaded into the bone. Thebone removal member 223 has a threadedend 223a at one end and ahandle end 223b at the other end. Threadedend 223a may be drilled into bone. Of course, it should be noted that the bone saw 222 has a saw-toothed shape at one end and is connected to thehandle 221 at the other end.

Of course, it should be noted that the connection portion between the bone saw 222 and thehandle 221 is designed as an elastic lock, and the elastic lock includes a slot and an elastic lock core. The clamping groove is formed in the end portion of the bone saw 222, and the elastic lock cylinder is arranged on thehandle 221. When the bone saw 222 is inserted into thehandle 221, the resilient lock cylinder is received in the slot. The bone saw 222 is further provided with a hexagonal rotation stop block at the end thereof, and the hexagonal rotation stop block can be matched with the rotation stop groove on thehandle 221 to prevent thehandle 221 and the bone saw 222 from rotating relatively.

Further, thebone extraction kit 22 also includes adepth stop 224. Thedepth limiter 224 is sleeved on the bone saw 222 and used for limiting the bone-taking depth of the bone saw 222.

Of course, it is worth mentioning that the bone harvesting procedure is as follows: the positioning pin 1 is first penetrated into the bone, and then the position of the positioning pin 1 is adjusted using thepositioning guide member 10. Then thepositioning sleeve 21 is sleeved on the positioning needle 1. After the bone saw 222 is connected to thehandle 221, the second throughhole 222a of the bone saw 222 is sleeved on thepositioning sleeve 21. Thehandle 221 is rotated to drill the bone. When thedepth stop 224 abuts against the bone, drilling is stopped. Thehandle 221 is removed, the positioning pin and thepositioning sleeve 21 are taken out, the threadedend 223a at the front end of thebone taking piece 223 is used for drilling into the bone, the rod-shaped bone is drawn out, and the bone taking process is completed.

Referring to fig. 14-16, bone-harvesting bone-graftingmember 20 further includes areaming relief member 24. The reamingpressure reducing member 24 includes: a pressure reducingreamer rod 241, a pressure reducingguide hole 242, and a pressure reducingreamer needle 243. The pressure reducingreaming rod 241 can be inserted into the bone tunnel formed by thebone removal kit 22. Adecompression guide hole 242 is opened in the decompressionhole expanding rod 241. Therelief guide hole 242 includes afirst orifice 242a and asecond orifice 242 b. The first andsecond port passages 242a and 242b communicate. The junction of the first andsecond orifices 242a, 242b is rounded. The first andsecond orifices 242a, 242b are angled. The angle between the axes of the first andsecond orifices 242a, 242b is between 0 and 30 degrees. A decompression-reamingneedle 243 is inserted from one end of thedecompression guide hole 242 and is pierced from the other end. The pressure reducing andhole expanding needle 243 can be bent along the pressure reducingguide hole 242 for a certain angle and then extended out for expanding and reducing pressure.

It should be noted that when the reamingpressure reducing member 24 is used, thepressure reducing reamer 241 is first inserted into the bone canal drilled by the bone saw 222 so that thepressure reducing reamer 241 reaches the vicinity of the lesion. Then, a pressure-reducingreaming needle 243 is used to insert into the pressure-reducingguiding hole 242, and the pressure-reducingreaming needle 243 is naturally bent during the insertion process and then inserted into the periphery of the lesion at a certain angle with respect to the bone canal. Then, the pressure-reducing and hole-expandingneedle 243 is pulled out, the hole-expanding and pressure-reducingmember 24 is rotated, and the above steps are repeated to complete the hole-expanding and pressure-reducing operation at the focus.

It can be understood that the reamingpressure reducing member 24 can be inserted into the bone canal drilled by the bone saw 222, and the lesion at the end of the bone canal is drilled and reduced by the pressure reducing reamingneedle 243, so as to enlarge the pressure reducing range of the necrotic lesion and enhance the operation effect.

Referring to fig. 10, 17 and 18, thebone graft kit 23 includes: abone graft portal 231 and atop rod 232. Thebone graft inlet 231 is detachably provided on thehandle 221. Thebone graft inlet 231 communicates with the first throughhole 221 a. Thetop bar 232 may be inserted into the first throughhole 221a and the second throughhole 222 a. Theejector rod 232 is used for ejecting the filling material to the femoral head necrosis focus.

Of course, it should be noted that in some embodiments of the present invention, thebone graft inlet 231 has a funnel shape, and the opening at the upper end is larger than the hole at the connection portion, so as to facilitate the entry of material and prevent material leakage.

Of course, it should be noted that therod 232 can be inserted into one end of the first throughhole 221a, and the end of the rod is a concave arc surface for binding and collecting bone grafting materials.

When the bone grafting is performed, thebone taking kit 22 is kept still, thebone grafting inlet 231 is arranged on thehandle 221, the taken bone rod is broken or mixed with other filling materials and then placed into thebone grafting inlet 231, the bone grafting materials enter the first throughhole 221a through thebone grafting inlet 231, and then the bone grafting materials enter the opened bone tunnel holes along the first through hole 22a1 and the second throughhole 222a through theejector rod 232. The bone grafting process is completed.

Of course, it should be noted that the filling material described herein may be used to mix the healthy bone portion extracted from thebone grafting member 20 into the filling material, so as to realize the reuse of the autologous bone. The bone taking andgrafting component 20 solves the bone waste when the medullary core of the femoral head necrosis reduces the pressure, reduces the secondary injury of the autologous bone taking, provides a new technical means for effectively utilizing the bone in the femoral head and neck, obtains extremely satisfactory treatment effect, opens up a new way for treating the femoral head necrosis and has extremely good popularization value.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

Translated fromChinese

1.一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，包括：1. a hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression bone grafting device is characterized in that, comprising:定位导向构件(10)，定位针(1)穿过所述定位导向构件(10)并插设在骨质中，所述定位导向构件(10)用于调整定位针(1)的角度和位置；以及A positioning guide member (10) through which the positioning needle (1) is inserted into the bone, the positioning guide member (10) being used to adjust the angle and position of the positioning needle (1) ;as well as取骨植骨构件(20)，可套设在定位针(1)上，所述取骨植骨构件(20)用于取出股骨头坏死病灶及头颈内健康骨质并植入填充材料。The bone-extracting and bone-grafting component (20) can be sleeved on the positioning needle (1), and the bone-extracting and bone-grafting component (20) is used to extract the necrosis of the femoral head and the healthy bone in the head and neck, and implant the filling material.2.根据权利要求1所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述定位导向构件(10)包括：2. A hip-preserving percutaneous minimally invasive device for precise positioning of bone extraction, decompression and bone grafting according to claim 1, wherein the positioning guide member (10) comprises:转角件(11)，定位针(1)穿过所述转角件(11)并插设在骨质中，所述转角件(11)用于调整定位针(1)的角度；以及a corner piece (11), the positioning pin (1) is inserted through the corner piece (11) and inserted into the bone, and the corner piece (11) is used to adjust the angle of the positioning pin (1); and平移件(12)，定位针(1)穿过所述平移件(12)并插设在骨质中，所述平移件(12)用于调整定位针(1)的位置。A translation piece (12), the positioning pin (1) is inserted through the translation piece (12) and inserted into the bone, and the translation piece (12) is used to adjust the position of the positioning pin (1).3.根据权利要求2所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述转角件(11)包括：3. A hip-preserving percutaneous minimally invasive device for precise positioning of bone extraction, decompression and bone grafting according to claim 2, wherein the corner piece (11) comprises:第一基体(111)；a first substrate (111);基准通道(112)，开设在所述第一基体(111)上，定位针(1)穿过所述基准通道(112)并插设在骨质中，所述基准通道(112)用于固定所述第一基体(111)，所述基准通道(112)的两端分别为基准插入端(112a)以及基准插出端(112b)，所述基准通道(112)为若干个，若干所述基准通道(112)共用同一个基准插出端(112b)；以及A reference channel (112) is opened on the first base body (111), the positioning pin (1) passes through the reference channel (112) and is inserted into the bone, and the reference channel (112) is used for fixation In the first base body (111), the two ends of the reference channel (112) are respectively a reference insertion end (112a) and a reference insertion end (112b), and there are several reference channels (112). reference channels (112) share the same reference socket (112b); and调整通道(113)，开设在所述第一基体(111)上，定位针(1)穿过所述调整通道(113)插设在骨质中，所述调整通道(113)的两端分别为调整插入端(113a)以及调整插出端(113b)，所述调整通道(113)为若干个，若干所述调整通道(113)共用同一个调整插出端(113b)。An adjustment channel (113) is opened on the first base body (111), the positioning pin (1) is inserted into the bone through the adjustment channel (113), and the two ends of the adjustment channel (113) are respectively In order to adjust the insertion end (113a) and the adjustment insertion end (113b), there are several adjustment channels (113), and the adjustment channels (113) share the same adjustment insertion end (113b).4.根据权利要求2所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述平移件(12)包括：4. A kind of hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression bone grafting device according to claim 2, characterized in that, the translation member (12) comprises:第二基体(121)；以及a second substrate (121); and调位通孔(122)，开设在所述第二基体(121)上，定位针(1)穿过所述调位通孔(122)并插设在骨质中，所述调位通孔(122)为若干。A position adjustment through hole (122) is opened on the second base body (121), the positioning pin (1) passes through the position adjustment through hole (122) and is inserted into the bone, the position adjustment through hole (122) is a number.5.根据权利要求4所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述第二基体(121)的一端为圆弧端，圆弧端可避免软组织干扰。5. A hip-preserving percutaneous minimally invasive precise positioning bone extraction and decompression bone grafting device according to claim 4, wherein one end of the second base body (121) is an arc end, and the arc end can be Avoid soft tissue interference.6.根据权利要求1所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述取骨植骨构件(20)包括：6. A hip-preserving percutaneous minimally invasive precise positioning device for bone extraction, decompression and bone grafting according to claim 1, wherein the bone extraction and bone grafting component (20) comprises:定位套(21)，可套设在定位针(1)上；a positioning sleeve (21), which can be sleeved on the positioning needle (1);取骨套件(22)，可套设在所述定位套(21)上，所述取骨套件(22)用于取出坏死病灶及头颈内健康骨质；以及A bone extraction kit (22), which can be sleeved on the positioning sleeve (21), and the bone extraction kit (22) is used for taking out necrotic lesions and healthy bone in the head and neck; and植骨套件(23)，与所述取骨套件(22)接，用于植入填充材料。A bone grafting kit (23) is connected to the bone extraction kit (22) for implanting filling materials.7.根据权利要求6所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述定位套(21)的内径与所述定位针(1)的直径相等。7. A hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression bone grafting device according to claim 6, characterized in that the inner diameter of the positioning sleeve (21) and the diameter of the positioning needle (1) equal.8.根据权利要求6所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述取骨套件(22)包括：8. A kind of hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression bone grafting device according to claim 6, is characterized in that, described bone extraction kit (22) comprises:手柄(221)，用于握持，所述手柄(221)上开设有第一通孔(221a)；a handle (221) for holding, and a first through hole (221a) is formed on the handle (221);骨锯(222)，可拆卸的设置在所述手柄(221)上，所述骨锯(222)上开设有第二通孔(222a)，所述第二通孔(222a)与所述第一通孔(221a)连通；The bone saw (222) is detachably arranged on the handle (221), the bone saw (222) is provided with a second through hole (222a), and the second through hole (222a) is connected to the first through hole (222a). A through hole (221a) communicates;取骨件(223)，可穿过所述手柄(221)和所述骨锯(222)并旋入骨质中，所述取骨件(223)的一端为螺纹端(223a)，另一端为手柄端(223b)，所述螺纹端(223a)可钻入骨质中；以及A bone extractor (223) can pass through the handle (221) and the bone saw (222) and be screwed into the bone, one end of the bone extractor (223) is a threaded end (223a), and the other end is a threaded end (223a) is a handle end (223b), the threaded end (223a) can be drilled into bone; and限深装置(224)，套设在所述骨锯(222)上，用于限制所述骨锯(222)的取骨深度。A depth limiting device (224) is sleeved on the bone saw (222) and used to limit the bone extraction depth of the bone saw (222).9.根据权利要求8所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述植骨套件(23)包括：9. A kind of hip-preserving percutaneous minimally invasive precise positioning bone extraction decompression and bone grafting device according to claim 8, wherein the bone grafting kit (23) comprises:植骨入口件(231)，可拆卸地设置在所述手柄(221)上，所述植骨入口件(231)与所述第一通孔(221a)连通；以及a bone graft inlet piece (231), detachably provided on the handle (221), the bone graft inlet piece (231) communicates with the first through hole (221a); and顶棒(232)，可插设在所述第一通孔(221a)和所述第二通孔(222a)中，所述顶棒(232)用于抵顶填充材料至股骨头坏死病灶处。The ejector rod (232) can be inserted into the first through hole (221a) and the second through hole (222a), and the ejector rod (232) is used to abut the filler material to the necrotic lesion of the femoral head .10.根据权利要求6所述的一种保髋经皮微创精准定位取骨减压植骨装置，其特征在于，所述取骨植骨构件(20)还包括扩孔减压构件(24)，所述扩孔减压构件(24)包括：10. A hip-preserving percutaneous minimally invasive precise positioning device for bone extraction, decompression and bone grafting according to claim 6, wherein the bone extraction and bone grafting component (20) further comprises a reaming and decompression component (24). ), the reaming pressure reducing member (24) comprises:减压扩孔杆(241)，可插入所述取骨套件(22)开设的骨道中；a decompression and reaming rod (241), which can be inserted into the bone tunnel opened by the bone extraction kit (22);减压导向孔(242)，开设在所述减压扩孔杆(241)中，所述减压导向孔(242)包括第一孔道(242a)以及第二孔道(242b)，所述第一孔道(242a)和所述第二孔道(242b)连通，所述第一孔道(242a)和所述第二孔道(242b)连接处圆滑过渡，所述第一孔道(242a)和所述第二孔道(242b)呈一定角度，所述第一孔道(242a)和所述第二孔道(242b)的轴线之间的夹角为0度到30度之间；以及A decompression guide hole (242) is opened in the decompression reaming rod (241), and the decompression guide hole (242) includes a first hole (242a) and a second hole (242b). The channel (242a) is communicated with the second channel (242b), the connection between the first channel (242a) and the second channel (242b) has a smooth transition, and the first channel (242a) and the second channel (242b) have a smooth transition. The hole (242b) is at a certain angle, and the included angle between the axes of the first hole (242a) and the axis of the second hole (242b) is between 0 degrees and 30 degrees; and减压扩孔针(243)，自所述减压导向孔(242)的一端插入并从另一端穿出，所述减压扩孔针(243)可沿所述减压导向孔(242)弯折一定角度后伸出进行扩孔减压。A decompression reamer (243) is inserted from one end of the decompression guide hole (242) and protrudes from the other end, and the decompression reamer (243) can be inserted along the decompression guide hole (242) After bending at a certain angle, extend it to expand the hole for decompression.

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