CN204049803U - A kind of guider of foward-push hip replacement - Google Patents
A kind of guider of foward-push hip replacement Download PDFInfo
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- CN204049803U CN204049803U CN201420209387.7U CN201420209387U CN204049803U CN 204049803 U CN204049803 U CN 204049803U CN 201420209387 U CN201420209387 U CN 201420209387U CN 204049803 U CN204049803 U CN 204049803U
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- foward
- push
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- jack
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- 238000011540 hip replacement Methods 0.000 title claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
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- 210000004907 gland Anatomy 0.000 claims description 15
- 238000000034 method Methods 0.000 description 27
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- 238000005516 engineering process Methods 0.000 description 6
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- 238000005194 fractionation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000011541 total hip replacement Methods 0.000 description 3
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Abstract
The utility model discloses a kind of guider of foward-push hip replacement, comprise handle, guide link, acetabular cup adapter and sleeve, the bottom of handle is connected with acetabular cup adapter; One end of guide link is connected with the side of handle near upper end, and the other end of guide link is provided with sleeve hole, and sleeve is nested in sleeve hole; Acetabular cup adapter comprises installation shaft, the central shaft of sleeve is roughly overlapping with the axis of installation shaft, handle and guide link are fixedly linked by the first inserted link of coupling mutually and the first jack, first inserted link is provided with the first groove, the first steel ball with the first groove match is provided with in the first through hole be connected with the first jack, pushing sleeve cylinder before the outer surface of the first jack is provided with first, the first steel ball is fixed in the first groove by pushing sleeve cylinder before first; The guider that this utility model provides, easily loads and unloads, and accurately can locate, inserts, be press-fitted acetabular component, not dislocate.
Description
Technical field
This utility model relates to a kind of Micro trauma hip replacement surgery instrument, particularly relates to a kind of guider of foward-push hip replacement.
Background technology
Along with the transformation of new medical model to Bio-psycho-social Medical Mode and the formation of surgical diseases wholistic therapy idea, promote the development of Micro trauma surgery, Micro trauma replacement of total hip is a kind of new operation method just occurred in recent years, it is by the improvement to operative approach, operational approach and operation tool on the basis of traditional replacement of total hip, in a relatively little otch (5 ~ 10cm), complete the displacement to articular prosthesis, need the improvement of doctor's rich experience and operating theater instruments to obtain good surgical effect.Therefore have higher requirement to instrument, requirement can realize enough surgical field of view, reduces operating time, locates accurately.Compared with traditional replacement of total hip, minimally invasive surgery has the advantages such as damage is little, recovery is fast, function of joint is kept.Traditional THA (total hip arthroplasty, total hip replacement) operative incision is generally 20 ~ 30cm, although have good surgical field of view, also brings a large amount of losing blood and the recovery of postoperative long period.In this respect, minimally invasive surgery then has obvious advantage, and specifically see document 1: Zheng Dong, Yang Shuhua, Micro trauma replacement of total hip progress, foreign medical science orthopaedics and tranmstology fascicle in January, 2005 z6 rolled up for the 1st phase.
Total hip replacement minimally invasive surgery enters path method to be had multiple, mainly comprises two incision approach, Anteroposterior aproach or anterior approach, posterior approach or posterolateral approach, specifically see document 2:Kelmanovich D, Parks ML, Sinha R, et al.J South Orthop Assoc, 2003; 12 (2): 90 ~ 94.The capable total hip joint of Micro trauma two incision approach, adopt special instrument and perspective to assist, safety is better, and patient recovers faster, and prosthese position is more accurate; But assist by C arm machine at any time in polishing and acetabular bone or femoral prosthesis put procedure, the irradiation time increasing doctor can be caused, specifically see document 3:Berger R Paper presented at:70th Annual Meeting of the American Academy of Orthopaedic Surgeon, 2003.Implement this kind of operation in addition and remain test to surgical technic, operator needs good technology and equipment condition.Front side approach needs, by drag hook and extension table traction complete operation, need use special operation table; Uncommon front road exposure chamber, doctor's learning curve is long; Acetabular bone limited view; The special femoral stem of usual use; Band eccentric throw prosthese driver need be used; In art, locomotive activity test is limited in scope; Femur and ankle joint fracture in normal generation art.Anteroposterior aproach, provides acetabular bone intuitively and appears, and is convenient to repeatedly adjust acetabular bone position in art, but part abductor cuts off, and likely causes limping.And cut the joint capsule of all front sides, account for 30% ~ 40% of whole joint capsule, also may cause postoperative instability.Rear side approach be Micro trauma THA adopt a most common operative approach, this operative approach is similar to traditional posterior approach THA, because of but operative doctor learn in this type of operation process, to hold a kind of wield minimally invasive surgery method most, have much representativeness.The surgical technic of this uniqueness can make orthopedist be completed by the operation tool after improvement.General rear outside minimally invasive surgery, otch is little, and amount of bleeding reduces, and this approach femur side appears with easy to operate.But acetabular bone exposure is insufficient, backward dislocation probability is higher, injury of sciatic nerve is subject matter, and because still want cut-away portions muscle in art, thus can not can be regarded as real minimally invasive surgery.If but improve tool design, do not cut off soft tissue and complete operation technique, real minimally invasive surgery technology will be realized.
After replacement of total hip, dislocation of hip joint is still the major complications being only second to prosthetic loosening in addition.In operation, soft tissue destruction is too much its one of the main reasons, this just day by day be familiar with by surgeon.Maintain stability mainly static(al) and the dynamical stability structure of hip joint.Joint capsule structure and intraarticular external ligament increase static stability, and dynamical stability structure is muscle tone and the tension stress intensity of hip joint rich surrounding.Capsule ligament can guide the proper motion of articular surface and the effect of limit excessive motion, and significantly stoping any unphysiologic displacement to occur, is the important feature of stable hip joint.Therefore, in minimally invasive surgery, be the importance of successful surgery to the reservation of ligament, muscle, joint capsule, the stability in joint can be maintained.
Because minimally invasive surgery otch is very little, the less then cicatrix of otch is less.But this is not Micro trauma THA final purpose after all, if minimally invasive surgery mode accurately processes acetabular bone and femur brings very large difficulty objectively giving operative doctor, or operator ability is limit and cannot successfully perform the operation at narrow space, operation so blindly will cause a series of complication, as prosthese is placed unreasonable, fracture or nerve injury, postoperative ankle dislocation or prosthetic joint face premature abrasion etc.Thus in practical operation, Micro trauma THA operation is had higher requirement to instrument, and because otch is little, needs can make acetabular bone expose fully, retain ligament, muscle, joint capsule are complete and backward dislocation probability is the requirement such as zero, the surgical effect that could obtain.Therefore, the operation of Micro trauma total hip replacement is had higher requirement to the operation tool of special improvement, acetabular bone can be made to expose fully, without backward dislocation occur, do not cut off muscle, retain the requirements such as complete shutdown capsule, accurately location, the Micro trauma instrument that current Patents relates to, there is using method complexity, not quick detachable, or the shortcoming such as large that takes up space, existing instrument can not meet whole requirement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of guider of foward-push hip replacement, accurately can locate, easily load and unload, realize the insertion of acetabular component efficiently and easily, be press-fitted, and effectively avoid dislocation phenomenon occurs, greatly reduce the deadline of minimally invasive surgery.
This utility model is solve the problems of the technologies described above the guider that the technical scheme adopted is to provide a kind of foward-push hip replacement, and comprise handle, guide link, acetabular cup adapter and sleeve, the bottom of described handle is connected with acetabular cup adapter; One end of described guide link is connected with the side of handle near upper end, and the other end of described guide link is provided with sleeve hole, and described sleeve is nested in sleeve hole; Described acetabular cup adapter comprises installation shaft, the central shaft of described sleeve is roughly overlapping with the axis of described installation shaft, described handle and guide link are fixedly linked by the first inserted link of coupling mutually and the first jack, described first inserted link is provided with the first groove, the first steel ball with the first groove match is provided with in the first through hole be connected with described first jack, pushing sleeve cylinder before the outer surface of the first jack is provided with first, described first steel ball is fixed in the first groove by pushing sleeve cylinder before first.
The guider of above-mentioned foward-push hip replacement, wherein, described first inserted link is arranged on the side of handle near upper end, and described first jack is arranged on guide link end.
The guider of above-mentioned foward-push hip replacement, wherein, the shape of described first inserted link and the first jack is cylindrical, before described first, pushing sleeve cylinder comprises the first cavity and second cavity of different-diameter, inwall and first steel ball of described first cavity offset, and the diameter of described second cavity is greater than the diameter of the first cavity.
The guider of above-mentioned foward-push hip replacement, wherein, is arranged with the first spring and the first check ring in described second cavity.
The guider of above-mentioned foward-push hip replacement, wherein, described first groove is annular groove.
The guider of above-mentioned foward-push hip replacement, wherein, the quantity of described first through hole is 2-4, places first steel ball in each first through hole.
The guider of above-mentioned foward-push hip replacement, wherein, described multiple first through hole is uniformly distributed along the circumference of the first jack.
The guider of above-mentioned foward-push hip replacement, wherein, described acetabular cup adapter comprises mount pad and striking head, described mount pad is fixedly connected with the bottom of handle, described striking head is set in mate in described installation shaft and with described mount pad and is connected, and the head of described installation shaft can be connected with acetabular cup and rotate along axis.
The guider of above-mentioned foward-push hip replacement, wherein, the bottom of described acetabular cup adapter and handle is fixedly linked by the second inserted link of coupling mutually and the second socket, described second inserted link is arranged on the mount pad of acetabular cup adapter, and described second socket is arranged on the bottom of handle.
The guider of above-mentioned foward-push hip replacement, wherein, described second inserted link is cylindrical inserted link, described second inserted link is provided with the second groove, the second jack matched with the second inserted link is provided with in described second socket, be provided with the second steel ball with the second groove match in the second through hole be connected with described second jack, described second steel ball is fixed in described second groove by gland.
The guider of above-mentioned foward-push hip replacement, wherein, described second groove is annular groove.
The guider of above-mentioned foward-push hip replacement, wherein, be also provided with the second spring between described second steel ball and gland, the inwall of described gland and the second socket offsets.
The guider of above-mentioned foward-push hip replacement, wherein, the quantity of described second through hole is 2-4, and each second through hole is outwards all disposed with the second steel ball, the second spring and gland from inner.
The guider of above-mentioned foward-push hip replacement, wherein, described multiple second through hole is uniformly distributed along the circumference of the second socket.
The guider of above-mentioned foward-push hip replacement, wherein, the bottom of described acetabular cup adapter and handle is fixedly linked by the second inserted link of coupling mutually and the second jack, described second inserted link is arranged on the mount pad of acetabular cup adapter, described second jack is arranged on the bottom of handle, described second inserted link is provided with the second groove, the second steel ball with the second groove match is provided with in the second through hole be connected with described second jack, pushing sleeve cylinder before the outer surface of described second jack is provided with second, before described second steel ball passes through second, pushing sleeve cylinder fixes in the second groove.
The guider of above-mentioned foward-push hip replacement, wherein, the shape of described second inserted link and the second jack is cylindrical, before second, pushing sleeve cylinder comprises the 3rd cavity and the 4th cavity of different-diameter, inwall and second steel ball of described 3rd cavity offset, and the diameter of described 4th cavity is greater than the diameter of the 3rd cavity.
The guider of above-mentioned foward-push hip replacement, wherein, is provided with the second spring and the second check ring that are set in the second inserted link outer surface in described 4th cavity.
The guider of above-mentioned foward-push hip replacement, wherein, the upper end of described handle is provided with rotatable handle, and described handle is provided with the wave lines of the hand.
This utility model contrast prior art has following beneficial effect: the guider of the foward-push hip replacement that technical solutions of the utility model provide, is mainly used for the calibration of acetabular component, inserts and be press-fitted.Use middle meeting to open two otch, first main otch is used for installing the prostheses such as femoral stem, acetabular bone, femoral head, neck of femur, is used for excising femoral head and laying acetabular component; Second otch is mainly used in the location of acetabular bone and is press-fitted, and reduces operating time, and ensures to dislocate.Described guider mainly comprises guiding handle, guide link, acetabular cup adapter and sleeve; Handle and guide link by arranging foward-push sleeve on socket, as long as after foward-push sleeve is pushed hard toward handle direction, inserted link is inserted socket certain position fixedly to let go, there are easy handling, easy to use, quick, accurate, greatly reduce the deadline of minimally invasive surgery, operation process does not need to cut off any muscle and joint capsule, accurately can locate, insert, be press-fitted acetabular component, without advantages such as dislocation generations.The minimally invasive surgery technology of this Micro trauma instrument and this Micro trauma instrument of use provides to replacement of total hip and reduces wound, eases the pain and shorten the possible of rehabilitation duration, makes patient can shorten hospital stays, reduction expense, recover faster.Use the operation of this Micro trauma instrument can avoid cutting off any MT, the especially reservation of piriformis, be a kind of real muscle reservation technology, and keep the complete of joint capsule, thus reduce complication, shorten rehabilitation duration; Less losing blood and tissue destruction in art, postoperative ankle is more stable, and joint function recovery is better.Conventional anatomical form approach, use standard procedures platform, less nerve injury/anesthesia damage, occur without dislocation, positioned by this special guider, carry out acetabular bone process (preparation) accurately by sleeve pipe and implant, than the clinical effectiveness that standard way of escape minimally invasive surgery significantly promotes; Good acetabular bone and the femur visual field, all parts have reliable axiality; The learning curve shorter than front side approach; Compared with way of escape otch, way of escape otch is large, and can damage many muscular tissues; Rear side Micro trauma path otch significantly reduces, but still can be separated the muscle group the same with large otch; Use the surgical technic advantage of this utility model guider to be without dislocation of performing the operation, recover fast to leave hospital, modus operandi is simple, and during expansion marrow, neck of femur is complete, less risk of bone fracture; Become Micro trauma THA in operation process into traditional THA, otch can expand, and in doctor's art, flexibility ratio is higher; Concerning doctor, can become a kind of standard, surgical technic safely and effectively, do not need the learning curve grown very much.Concerning the selection of rehabilitations as early as possible many patient, operative scar more attractive in appearance can increase the satisfaction of patient simultaneously.
Accompanying drawing explanation
Fig. 1 is the guider exploded perspective view of foward-push hip replacement in this utility model embodiment;
Fig. 2 is this utility model embodiment Wave formula handle arrangement schematic diagram;
Fig. 3 a is handle and guide link foward-push connection diagram in this utility model embodiment;
Fig. 3 b is handle and guide link foward-push assembling process schematic diagram in this utility model embodiment;
Fig. 4 a is acetabular cup structural representation in this utility model embodiment;
Fig. 4 b is acetabular cup cross-sectional view in this utility model embodiment;
Fig. 5 a is acetabular cup connector construction schematic diagram in this utility model embodiment;
Fig. 5 b is acetabular cup adapter cross-sectional view in this utility model embodiment;
Fig. 6 a, 6b are acetabular cup and acetabular cup adapter assembling process schematic in this utility model embodiment;
Fig. 7 a, 7b are acetabular cup adapter and knocker assembly connection schematic diagram in this utility model embodiment;
Fig. 7 c be in this utility model embodiment acetabular cup adapter and knocker with the use of process schematic;
Fig. 8 a is handle and the direct insertion connection diagram of acetabular cup adapter in this utility model embodiment;
Fig. 8 b is handle and the direct insertion assembling process schematic diagram of acetabular cup adapter in this utility model embodiment;
Fig. 9 a is handle and acetabular cup adapter foward-push connection diagram in this utility model embodiment;
Fig. 9 b is handle and acetabular cup adapter foward-push assembling process schematic diagram in this utility model embodiment;
Figure 10 is the use procedure schematic diagram of the guider of foward-push hip replacement of the present utility model.
In figure:
1 handle 2 guide link 3 acetabular cup adapter
4 acetabular cup 5 sleeve 6 knockers
10 handle 11 first inserted link 12 second sockets
13 gland 14 second spring 15 second steel balls
Pushing sleeve cylinder 18 second check ring before 16 first grooves 17 second
121 second jack 122 second through holes
171 the 3rd cavity 172 the 4th cavitys
21 sleeve hole 22 first jack 24 first springs
Pushing sleeve cylinder 27 first check ring before 25 first steel balls 26 first
221 first through hole 261 first cavity 262 second cavitys
30 second groove 31 second inserted links 32 are sold directly to households
33 mount pad 34 striking head 35 installation shaft
36 screw thread 37 axis 38 inner hexagonal holes
41 cups 42 plant nail 43 screwed hole of centre
901 scalpel 902 otch 903 acetabular fossa
904 positioning needle 905 leading truck 906 die trial cups
907 positioning needle sleeve pipe 908 acetabular fossa reamer 909 reamer rotating shafts
910 placed channel 912 drumstick 914 fixed sleevings
916 bone drill 917 bottle openers
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the guider exploded perspective view of foward-push hip replacement in this utility model embodiment; Fig. 3 a is handle and guide link foward-push connection diagram in this utility model embodiment.
Refer to Fig. 1 and Fig. 3 a, the guider of the foward-push hip replacement that this utility model provides, comprise handle 1, guide link 2, acetabular cup adapter 3 and sleeve 5, the bottom of described handle 1 is connected with acetabular cup adapter 3; One end of guide link 2 is connected with the side of handle 1 near upper end, and the other end of guide link 2 is provided with sleeve hole 21, and sleeve 5 is nested in sleeve hole 21; Acetabular cup adapter 3 comprises mount pad 33 and striking head 34, mount pad 33 is fixedly connected with the bottom of handle 1, striking head 34 is set in mate in installation shaft 35 and with mount pad 33 and is connected, the head of installation shaft 35 can be connected with acetabular cup 4 and rotate along axis 37, and the central shaft of sleeve 5 is roughly overlapping with the axis 37 of the installation shaft 35 of acetabular cup adapter 3; Handle 1 and guide link 2 are fixedly linked by the first inserted link 11 of coupling mutually and the first jack 22, first inserted link 11 is provided with the first groove 16, the first steel ball 25 matched with the first groove 16 is provided with in the first through hole 221 be connected with the first jack 22, before the outer surface of the first jack 22 is provided with first, pushing sleeve cylinder 26, first steel ball 25 is fixed in the first groove 16 by pushing sleeve cylinder 26 before first.
Fig. 2 is this utility model embodiment Wave formula handle arrangement schematic diagram.
Refer to Fig. 2, the upper end of this utility model handle 1 is provided with rotatable handle 10, and handle 10 can rotate in certain angle, and can accurately locate; Handle 10 can be provided with the wave lines of the hand, and the more comfortable holding of use is more firm.
Fig. 3 a is handle and guide link foward-push connection diagram in this utility model embodiment.
Refer to Fig. 3 a, handle 1 and guide link 2 realize being fixedly linked of foward-push by pushing sleeve cylinder 26 before first inserted link 11, first jack 22 and first of coupling mutually.First inserted link 11 is arranged on the side of handle 1 near upper end, and the first jack 22 relative set is in guide link 2 end.
The shape of the first inserted link 11 and the first jack 22 is cylindrical, the first groove 16 that first inserted link 11 is arranged is annular groove, the quantity of the first through hole 221 be connected with the first jack 22 is 2-4, circumference along the first jack 22 is uniformly distributed, and places first steel ball 25 in each first through hole 221.Before first, pushing sleeve cylinder 26 comprises the first cavity 261 of different-diameter and the inwall of the second cavity 262, first cavity 261 and the first steel ball 25 and offsets, and the diameter of the second cavity 262 is greater than the diameter of the first cavity 261.The first spring 24 and the first check ring 27 is arranged with in second cavity 262.The first inserted link 11 on handle 1 inserts in guide link 2 end first jack 22 when being connected and fixed by handle 1 and guide link 2, lock the first inserted link 11 by pushing sleeve cylinder 26 before first and the first steel ball 25, thus make handle 1 together with guide link 2 close fit.
Fig. 3 b is handle and guide link foward-push assembling process schematic diagram in this utility model embodiment.
To refer to shown in Fig. 3 b1 first by pushing sleeve cylinder 26 before first, before push away in the direction of the arrow, the first steel ball 25 is now unclamped; Continue to apply along arrow points forward thrust pushing sleeve cylinder 26 before first, and the first jack 22 of the first inserted link 11 alignment guide connecting rod 2 end on handle 1 is inserted, as shown in Fig. 3 b2; Continue to power, and continue the first inserted link 11 on handle 1 to insert, the first steel ball 25 loosened due to the extruding upper and lower two of the first inserted link 11 after arriving certain position is upwards backed down downwards as shown in Fig. 3 b3; Till the first inserted link 11 is inserted in the first jack 22 completely, as shown in Fig. 3 b4; Finally remove the forward thrust to pushing sleeve cylinder 26 before first, now due to the effect of the first spring 24, before first, pushing sleeve cylinder 26 is reversed the initial position that rebounds, to be pressed into due to extruding first steel ball 25 of pushing sleeve cylinder 26 before first in this process in the first groove 16 on the first inserted link 11 thus the first inserted link 11 has been locked in the first jack 22, as shown in Fig. 3 b5, so far complete the assembling of handle 1 and guide link 2.
It is firm and simple to operate that this connects locking, only pushing sleeve cylinder 26 before first before need be pushed away gently, be then inserted in the first jack 22 by the first inserted link 11 on handle 1, then discharge and can complete assembling to the forward thrust of pushing sleeve cylinder 26 before first; Pushing sleeve cylinder 26 before first also only before need postpone and be extracted in the first jack 22 of guide link 2 by the first inserted link 11 on guiding handle 1 by the fractionation of two parts gently; This structure can greatly reduce the installation time of guiding handle 1 and guide link 2, thus substantially reduces the total time of operation.
Fig. 4 a is acetabular cup structural representation in this utility model embodiment; Fig. 4 b is acetabular cup cross-sectional view in this utility model embodiment.
Refer to Fig. 4, acetabular cup 4 primarily of cup 41, install hold-down screw plant nail 42 and head forms for the screwed hole of centre 43 connected.
Fig. 5 a is acetabular cup connector construction schematic diagram in this utility model embodiment; Fig. 5 b is acetabular cup adapter cross-sectional view in this utility model embodiment.
Refer to Fig. 5, in the present embodiment, acetabular cup adapter 3 mainly comprises the second inserted link 31 be connected with handle 1, be connected and fixed the direct selling 32 of the second inserted link 31 and mount pad 33, striking head 34 and installation shaft 35, wherein mount pad 33 and striking head 34 rely on screw thread 36 to be combined together, and installation shaft 35 can freely be rotated its head threads 36 around axis 37 and used for connecting acetabular cup 4.
Fig. 6 a, 6b are acetabular cup and acetabular cup adapter assembling process schematic in this utility model embodiment.
Refer to Fig. 6, the screwed hole of centre 43 of acetabular cup 4 cup 41 is aimed at acetabular cup adapter 3 installation shaft 35 head external screw thread 36 and carry out rotation assembling, screw thus acetabular cup 4 is fixed on acetabular bone adapter 3.
Fig. 7 a, 7b are acetabular cup adapter and knocker assembly connection schematic diagram in this utility model embodiment; Fig. 7 c be in this utility model embodiment acetabular cup adapter and knocker with the use of process schematic.
Refer to Fig. 7, the using method of acetabular cup knocker 6 is through sleeve hole 21 by knocker 6, and knocker 6 head turret head aligning is inserted in the corresponding inner hexagonal hole 38 of installation shaft 35 on acetabular cup adapter 3, drumstick etc. is used to knock the head that instrument knocks knocker 6, acetabular cup 4 is knocked in relevant position and strike real after, rotopeening device 6 drives acetabular cup adapter 3 installation shaft 35 to unscrew coordinating thus acetabular cup 4 and acetabular cup adapter 3 being separated of acetabular cup 4 and acetabular cup adapter 3.
Can be connected by direct insertion or foward-push connected mode between handle 1 and acetabular cup adapter 3, Fig. 8 is direct insertion connection diagram, and Fig. 9 is foward-push connection diagram, is described respectively below.
Fig. 8 a is handle and the direct insertion connection diagram of acetabular cup adapter in this utility model embodiment.
Refer to Fig. 8 a, the bottom of acetabular cup adapter 3 and handle 1 is fixedly linked by the second inserted link 31 of coupling mutually and the second socket 12; Second inserted link 31 is arranged on the mount pad 33 of acetabular cup adapter 3, and the second socket 12 is arranged on the bottom of handle 1.Certainly, the position of the second inserted link 31 and the second socket 12 also can be arranged conversely.
Preferably, second inserted link 31 is cylindrical inserted link, cylindrical second inserted link 31 is provided with the second groove 30, second groove 30 is preferably annular groove, the second jack 121 matched with the second inserted link 31 is provided with in second socket 12, second through hole 122 through with the second jack 121 is also provided with in second socket 12, second through hole 122 is outwards all disposed with the second steel ball 15 from inner, second spring 14 and gland 13, second steel ball 15 and the second groove 30 match, by gland 13, second spring 14 fixes in the second groove 30, the inwall of gland 13 and the second socket 12 offsets.Mainly the second inserted link 31 on acetabular cup adapter 3 is inserted in the second jack 121 on handle 1 end second socket 12 when handle 1 is connected with acetabular cup adapter 3, by four group of second steel ball 15, second spring 14 and gland 13, thus make handle 1 together with acetabular cup adapter 3 close fit; This attended operation is simple, only the second inserted link 31 of acetabular cup adapter 3 need be inserted in the second jack 121 on handle 1 and can complete assembling, the second inserted link 31 of acetabular cup adapter 3 also only need be extracted by the fractionation of two parts in the second jack 121 handle 1; Certainly this kind of structure is considered from minimizing weight, can reduce the assembling of a group or two groups of gland 13, second springs 14 and the second steel ball 15.Multiple second through hole 122 is preferably uniformly distributed along the circumference of the second socket 12.
Fig. 8 b is handle and the direct insertion assembling process schematic diagram of acetabular cup adapter in this utility model embodiment;
Refer to Fig. 8 b1, because the extruding of the second inserted link 31 makes the second steel ball 15 move, as shown in Fig. 8 b2 to the hole wall of the second through hole 122 while the second jack 121 that the second inserted link 31 of acetabular cup adapter 3 inserts on handle 1 end second socket 12; To be inserted in annular second groove 30 that certain position makes the second steel ball 15 just in time be pressed into due to the effect of gland 13 and the second spring 14 on second inserted link 31 when the second inserted link 31 thus the second inserted link 31 has been locked in the second socket 12, as shown in Fig. 8 b3, so far complete the assembling of handle and guide link.
Fig. 9 a is handle and acetabular cup adapter foward-push connection diagram in this utility model embodiment.
Refer to Fig. 9 a, the bottom of acetabular cup adapter 3 and handle 1 is fixedly linked by the second inserted link 31 of coupling mutually and the second jack 121, second inserted link 31 is arranged on the mount pad 33 of acetabular cup adapter 3, second jack 121 is arranged on the bottom of handle 1, second inserted link 31 is provided with the second groove 30, the second steel ball 15 matched with the second groove 30 is provided with in the second through hole 122 be connected with the second jack 121, pushing sleeve cylinder 17 before the outer surface of the second jack 121 is provided with second, second steel ball 15 is fixed in the second groove 30 by pushing sleeve cylinder 17 before second.The shape of the second inserted link 31 and the second jack 121 is preferably cylindrical, before second, pushing sleeve cylinder 17 comprises the 3rd cavity 171 and the 4th cavity 172 of different-diameter, inwall and second steel ball 15 of the 3rd cavity 171 offset, and the diameter of the 4th cavity 172 is greater than the diameter of the 3rd cavity 171.The second spring 14 and the second check ring 18 being set in the second inserted link 31 outer surface is provided with in 4th cavity 172.
Fig. 9 b is handle and acetabular cup adapter foward-push assembling process schematic diagram in this utility model embodiment.
First by pushing sleeve cylinder 17 before second as shown in Fig. 9 b1, before push away in the direction of the arrow, the second steel ball 15 is now unclamped; Continue to apply along arrow points forward thrust pushing sleeve cylinder 17 before second, and by the second inserted link 31 on acetabular cup adapter 3, the second jack 121 of alignment guide handle 1 lower end inserts, as shown in Fig. 9 b2; Continue to power, and continue the second inserted link 31 on acetabular cup adapter 3 to insert, because two second steel balls 15 of the extruding left-right looseness of the second inserted link 31 are backed down to from left to right as shown in Fig. 9 b3 after arriving certain position; Till the second inserted link 31 is inserted in the second jack 121 completely, as shown in Fig. 9 b4; Finally remove the forward thrust to pushing sleeve cylinder 17 before second, now due to the effect of the second spring 14, before second, pushing sleeve cylinder 17 is reversed the initial position that rebounds, to be pressed into due to extruding second steel ball 15 of pushing sleeve cylinder 17 before second in this process in the second groove 30 on the second inserted link 31 thus the second inserted link 31 has been locked in the second jack 121, as shown in Fig. 9 b5, so far complete the assembling of handle 1 and acetabular cup adapter 3.
It is firm and simple to operate that this foward-push connects locking, only pushing sleeve cylinder 17 before second before need be pushed away gently, then the second inserted link 31 on acetabular cup adapter 3 is inserted in the second jack 121 on guiding handle 1, then discharges and can complete assembling to the forward thrust of pushing sleeve cylinder 17 before second; Pushing sleeve cylinder 17 before second also only before need postpone and be extracted in the second jack 121 of guiding handle 1 by the second inserted link 31 on acetabular cup adapter 3 by the fractionation of two parts gently; This structure can greatly reduce the installation time of guiding handle 1 parts and acetabular cup adapter 3, thus substantially reduces the total time of operation.
Figure 10 is the use procedure schematic diagram of the guider of foward-push hip replacement of the present utility model.
Below in conjunction with Figure 10 a ~ 10r, describe the use procedure of the guider of foward-push hip replacement of the present utility model in detail.
Refer to Figure 10 a: under the position of patient's lateral position, do otch 902 at rear side road scalpel 901, expose the acetabular fossa 903 of joint part;
Refer to Figure 10 b: put into the leading truck 905 that die trial cup 906 is housed from otch 902, die trial cup 906 is put into acetabular fossa 903, and insert positioning needle 904 from sleeve 5;
Refer to Figure 10 c: regulate leading truck 905 system perspective, determine positioning needle 904 insert port, cut skin, insert positioning needle 904, manufacture acetabular cup placed channel 910, remove positioning needle, leave positioning needle sleeve pipe 907;
Refer to Figure 10 d: remove the leading truck 905 that die trial cup is housed;
Refer to Figure 10 e, 9f: put into acetabular fossa reamer 908 from otch 902;
Refer to Figure 10 g: insert reamer rotating shaft 909 from placed channel 910 and install on motor by reamer rotating shaft 909;
Refer to Figure 10 h: start motor and drive acetabular fossa reamer 908 to renovate acetabular fossa, remove motor and acetabular fossa reamer 908 assembly parts;
Refer to Figure 10 i: from otch 902, the leading truck 905 that acetabular cup 4 is housed is put into acetabular fossa 903;
Refer to Figure 10 j: insert acetabular cup knocker 6 from placed channel 910;
Refer to Figure 10 k: use drumstick 912 or other knock thing and beat acetabular bone knocker 6 tail end striking head, acetabular cup 4 is struck reality in acetabular fossa 903;
Refer to Figure 10 l: rotate acetabular cup knocker 6 and acetabular cup 4 is separated with leading truck 905;
Refer to Figure 10 m: remove acetabular cup knocker 6;
Refer to Figure 10 n: remove leading truck 905;
Refer to Figure 10 o: insert fixed sleeving 914 from placed channel 910;
Refer to Figure 10 p: aimed at by fixed sleeving 914 and acetabular cup 4 plants nail 42;
Refer to Figure 10 q: from fixed sleeving 914, insert the bone drill 916 being connected with motor, plant nail 42 drill screw holes by acetabular cup;
Refer to Figure 10 r: from fixed sleeving 914, insert the corresponding bottle opener 917 of hold-down screw by above-mentioned for screw placement screw hole, so far fix complete by acetabular cup 4.
Although this utility model discloses as above with preferred embodiment; so itself and be not used to limit this utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (18)
1. a guider for foward-push hip replacement, is characterized in that, comprises handle, guide link, acetabular cup adapter and sleeve, and the bottom of described handle is connected with acetabular cup adapter; One end of described guide link is connected with the side of handle near upper end, and the other end of described guide link is provided with sleeve hole, and described sleeve is nested in sleeve hole; Described acetabular cup adapter comprises installation shaft, and the central shaft of described sleeve is roughly overlapping with the axis of described installation shaft; Described handle and guide link are fixedly linked by the first inserted link of coupling mutually and the first jack, described first inserted link is provided with the first groove, the first steel ball with the first groove match is provided with in the first through hole be connected with described first jack, pushing sleeve cylinder before the outer surface of the first jack is provided with first, described first steel ball is fixed in the first groove by pushing sleeve cylinder before first.
2. the guider of foward-push hip replacement as claimed in claim 1, it is characterized in that, described first inserted link is arranged on the side of handle near upper end, and described first jack is arranged on guide link end.
3. the guider of foward-push hip replacement as claimed in claim 2, it is characterized in that, the shape of described first inserted link and the first jack is cylindrical, before described first, pushing sleeve cylinder comprises the first cavity and second cavity of different-diameter, inwall and first steel ball of described first cavity are inconsistent, and the diameter of described second cavity is greater than the diameter of the first cavity.
4. the guider of foward-push hip replacement as claimed in claim 3, is characterized in that, be arranged with the first spring and the first check ring in described second cavity.
5. the guider of foward-push hip replacement as claimed in claim 3, it is characterized in that, described first groove is annular groove.
6. the guider of foward-push hip replacement as claimed in claim 1, is characterized in that, the quantity of described first through hole is 2-4, places first steel ball in each first through hole.
7. the guider of foward-push hip replacement as claimed in claim 6, it is characterized in that, described multiple first through hole is uniformly distributed along the circumference of the first jack.
8. the guider of foward-push hip replacement as claimed in claim 1, it is characterized in that, described acetabular cup adapter comprises mount pad and striking head, described mount pad is fixedly connected with the bottom of handle, described striking head is set in mate in described installation shaft and with described mount pad and is connected, and the head of described installation shaft can be connected with acetabular cup and rotate along axis.
9. the guider of foward-push hip replacement as claimed in claim 8, it is characterized in that, the bottom of described acetabular cup adapter and handle is fixedly linked by the second inserted link of coupling mutually and the second socket, described second inserted link is arranged on the mount pad of acetabular cup adapter, and described second socket is arranged on the bottom of handle.
10. the guider of foward-push hip replacement as claimed in claim 9, it is characterized in that, described second inserted link is cylindrical inserted link, described second inserted link is provided with the second groove, the second jack matched with the second inserted link is provided with in described second socket, be provided with the second steel ball with the second groove match in the second through hole be connected with described second jack, described second steel ball is fixed in described second groove by gland.
The guider of 11. foward-push hip replacements as claimed in claim 10, is characterized in that, described second groove (30) is annular groove.
The guider of 12. foward-push hip replacements as claimed in claim 10, it is characterized in that, be also provided with the second spring between described second steel ball and gland, the inwall of described gland and the second socket offsets.
The guider of 13. foward-push hip replacements as claimed in claim 12, is characterized in that, the quantity of described second through hole is 2-4, and each second through hole is outwards all disposed with the second steel ball, the second spring and gland from inner.
The guider of 14. foward-push hip replacements as claimed in claim 13, is characterized in that, described multiple second through hole is uniformly distributed along the circumference of the second socket.
The guider of 15. foward-push hip replacements as claimed in claim 1, it is characterized in that, the bottom of described acetabular cup adapter and handle is fixedly linked by the second inserted link of coupling mutually and the second jack, described second inserted link is arranged on the mount pad of acetabular cup adapter, described second jack is arranged on the bottom of handle, described second inserted link is provided with the second groove, the second steel ball with the second groove match is provided with in the second through hole be connected with described second jack, pushing sleeve cylinder before the outer surface of described second jack is provided with second, before described second steel ball passes through second, pushing sleeve cylinder fixes in the second groove.
The guider of 16. foward-push hip replacements as claimed in claim 15, it is characterized in that, the shape of described second inserted link and the second jack is cylindrical, before second, pushing sleeve cylinder comprises the 3rd cavity and the 4th cavity of different-diameter, inwall and second steel ball of described 3rd cavity offset, and the diameter of described 4th cavity is greater than the diameter of the 3rd cavity.
The guider of 17. foward-push hip replacements as claimed in claim 15, is characterized in that, is provided with the second spring and the second check ring that are set in the second inserted link outer surface in described 4th cavity.
The guider of 18. foward-push hip replacements as described in any one of claim 1-17, it is characterized in that, the upper end of described handle is provided with rotatable handle, and described handle is provided with the wave lines of the hand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209387.7U CN204049803U (en) | 2014-04-25 | 2014-04-25 | A kind of guider of foward-push hip replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209387.7U CN204049803U (en) | 2014-04-25 | 2014-04-25 | A kind of guider of foward-push hip replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204049803U true CN204049803U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420209387.7U Expired - Lifetime CN204049803U (en) | 2014-04-25 | 2014-04-25 | A kind of guider of foward-push hip replacement |
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| CN (1) | CN204049803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771230A (en) * | 2015-04-27 | 2015-07-15 | 中南大学湘雅医院 | Outer acetabulum cup implantation marking device and marking method |
| CN113081410A (en) * | 2021-04-06 | 2021-07-09 | 山东大学齐鲁医院(青岛) | Forward-pushing type hip joint resetting device |
-
2014
- 2014-04-25 CN CN201420209387.7U patent/CN204049803U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771230A (en) * | 2015-04-27 | 2015-07-15 | 中南大学湘雅医院 | Outer acetabulum cup implantation marking device and marking method |
| CN113081410A (en) * | 2021-04-06 | 2021-07-09 | 山东大学齐鲁医院(青岛) | Forward-pushing type hip joint resetting device |
| CN113081410B (en) * | 2021-04-06 | 2023-01-13 | 山东大学齐鲁医院(青岛) | Forward-pushing type hip joint resetting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: Room 316, No. 112, Fangzhong Street, Suzhou Industrial Park, Jiangsu Province Patentee after: MICROPORT SUZHOU ORTHORECON CO., LTD. Address before: 201318 twenty-third, 1-28 Lane 588, Tian Xiong Road, Zhou Pu town, Pudong New Area, Shanghai Patentee before: Shanghai MicroPort Orthopedics Co., Ltd. |
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| TR01 | Transfer of patent right |