CN209004184U - Minimally invasive extracting instrument with one set of fixed hollow screws - Google Patents
Minimally invasive extracting instrument with one set of fixed hollow screws Download PDFInfo
- Publication number
- CN209004184U CN209004184U CN201821443363.2U CN201821443363U CN209004184U CN 209004184 U CN209004184 U CN 209004184U CN 201821443363 U CN201821443363 U CN 201821443363U CN 209004184 U CN209004184 U CN 209004184U
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- Prior art keywords
- bar
- screw
- sliding
- sleeve
- hollow
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- Expired - Fee Related
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- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 210000000988 bone and bone Anatomy 0.000 claims description 14
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 7
- 244000152100 Sorbus torminalis Species 0.000 claims description 7
- 210000004872 soft tissue Anatomy 0.000 description 14
- 206010020718 hyperplasia Diseases 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000020089 femoral neck fracture Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical instruments, in particular to a minimally invasive taking-out instrument for a set of internal fixation hollow screws, which comprises a positioning device, a hollow sleeve rod, a osteotome, a clamping groove device and a protective sleeve; the positioning device comprises a fixing structure, a sleeve is connected to the fixing structure, an up-and-down adjusting screw rod is arranged in the sleeve, and one end, far away from the fixing structure, of the up-and-down adjusting screw rod is connected with a rotating handle; the upper and lower adjusting screw rods are screwed with upper and lower adjusting slide blocks, and the upper and lower adjusting slide blocks are connected with connecting rods; the connecting rod is connected with a sliding cavity, and a sliding block is connected in the sliding cavity in a sliding manner; a rotating drum is connected to the sliding block, a rotating shaft is connected in the rotating drum, and a rotating shaft fastening screw corresponding to the rotating shaft is arranged on the rotating drum; a support plate is fixedly connected to the rotating shaft, a hinge rod is hinged to the middle of the support plate, the other end of the hinge rod is connected with a clamping sleeve, and a Si-type needle penetrates through the clamping sleeve; the utility model discloses the effectual hollow screw wicresoft of having solved takes out the problem of difficulty clinically.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to a set of minimally invasive extractor of internal fixation hollow screw
Tool.
Background technique
Fracture of neck of femur is clinically very common, and at present clinically to the treatment of fracture of neck of femur, what is generallyd use is joint
Displacement or interior fixation；Most common fixation is to be fixed using hollow screw, and the overwhelming majority is minimally invasive hollow spiral shell at home
Nail is fixed；The taking-up of internal fixation hollow screw at present, it is by doctor that clinically doctor, which takes minimally invasive take out hollow nail,
Clinical experience operates, and the operating time is relatively long, will increase the part of patient to young doctor or the unskilled doctor of experience
The wound of soft tissue, so that minimally invasive meaning is just lost, so being badly in need of the taking-up of a set of minimally invasive internal fixation hollow screw screw
Instrument.
Utility model content
For above situation, to overcome the shortcomings of existing technologies, the utility model provides a set of internal fixation hollow screw
Minimally invasive removal equipment, clinically hollow screw is minimally invasive takes out difficult problem for effective solution.
To achieve the above object, the utility model uses following technical scheme: a set of minimally invasive taking-up of internal fixation hollow screw
Instrument, including positioning device, hollow sleeve stick, osteotome, card slot equipment, protective case；The positioning device includes fixed structure, fixed
It is connected with sleeve in structure, is equipped with up and down adjustment lead screw in sleeve, up and down adjustment lead screw is connected with far from one end of fixed structure
Rotational handle；It is bolted with up and down adjustment sliding block on the up and down adjustment lead screw, connecting rod, sleeve are connected on up and down adjustment sliding block
It is equipped with connecting rod sliding slot corresponding with connecting rod；It is connected with sliding cavity in the connecting rod, is slidably connected in sliding cavity
Sliding block, sliding cavity is interior to be equipped with the left and right adjusting lead screw being spirally connected with sliding block, and left and right adjusting lead screw one end is equipped with regulation handle；The cunning
It is connected with rotating cylinder on block, shaft is rotatably connected in rotating cylinder, shaft is equipped with rotating bar, and rotating cylinder is equipped with corresponding with rotating bar
Rotating bar sliding slot, rotating cylinder be equipped with shaft fastening screw corresponding with shaft；It is connected with support plate in the shaft, supports
It is hinged with hinge bar in the middle part of plate, the hinge bar other end is connected with gripper sleeve, this formula needle, gripper sleeve are equipped in gripper sleeve
It is equipped with this formula needle fastening screw corresponding with this formula needle；The support plate is equipped with side plate, and side plate is equipped with and hinge bar
Corresponding hinge bar sliding slot, hinge bar are equipped with screw corresponding with hinge bar sliding slot, and screw is equipped with nut；The company
Extension bar sliding slot, rotating bar sliding slot, is equipped with graduation mark on hinge bar sliding slot at sliding cavity.
Further, the fixed structure includes fixed plate, and fixed plate one end is connected with positioning plate, and positioning plate and sleeve are solid
Connection, the fixed plate other end are connected with connecting plate calmly, and dynamic position plate is equipped between connecting plate and positioning plate, and fixed plate is equipped with and moves
The dynamic position plate slideway that position plate matches, connecting plate are equipped with dynamic position plate fastening screw corresponding with dynamic position plate.
Further, the osteotome includes slide cartridge, and slide cartridge one end is circumferentially equipped with serrated knife, and the slide cartridge other end is connected with handle
Hand；Sliding axle is slidably connected in the slide cartridge, sliding axle is connected with T-type knife close to one end of serrated knife, and the sliding axle other end connects
It is connected to osteotome handle；The sliding axle is equipped with guide pad, and handle is equipped with groove corresponding with guide pad, is equipped in slide cartridge
The guide rail matched with guide pad, the bottom end of guide rail are connected with supporting block, and the junction of guide rail and supporting block is equipped with and guide pad
The opening matched；Slide cartridge inner wall is additionally provided with reset guide rail, and the line for resetting guide rail is vertical with the line of guide rail.
Further, the card slot equipment includes card slot bar, and card slot bar is hollow structure, and card slot bar one end inner wall is equipped with
Internal screw thread, the card slot bar other end are equipped with clamping structure；The clamping structure includes symmetrically arranged rotating bar, rotating bar and card slot
The rotation connection of bar inner wall, card slot bar are open equipped with rotating bar corresponding with rotating bar；It is bolted on the card slot bar outer wall
Pushing block, card slot bar are equipped with the external screw thread matched with pushing block, and pushing block is equipped with pushing block anti-skid chequer；Sliding connects in the card slot bar
It is connected to the briquetting matched with rotating bar, briquetting is equipped with the push rod matched with pushing block, and card slot bar is equipped with opposite with push rod
The push rod sliding slot answered.
Further, the hollow sleeve stick is hollow structure, and hollow sleeve stick one end inner wall is equipped with corresponding with hollow screw
Interior six sides groove.
Further, it is equipped with accommodating chamber corresponding with hollow screw in the protective case, is equipped in the middle part of protective case outer wall
Protective case anti-skid chequer.
When the utility model is used, can realize and all be positioned to the hollow screw of patient's body under primary perspective；
It is accurately positioned, makes minimally invasive take out be easier more simply to be more convenient, be able to carry out young doctor or the unskilled doctor of experience also
Operation, improves the applicability of the utility model；And perspective number is less, reduces damage of the perspective to patient and doctor；Use sky
The heart cover stick it is corresponding with hollow screw tail end, make it is subsequent take follow closely step carried out in hollow sleeve stick, avoid to other areas of patient
Domain causes to damage, and improves the effect of Minimally Invasive Surgery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of positioning device in the utility model；
Fig. 2 is partial enlargement diagram in the utility model Fig. 1；
Fig. 3 is the structural schematic diagram of osteotome in the utility model；
Fig. 4 is the main view of osteotome in the utility model；
Fig. 5 is the sectional view of A-A in the utility model Fig. 4；
Fig. 6 is the structural schematic diagram of card slot equipment in the utility model；
Fig. 7 is the sectional view of B-B in the utility model Fig. 6；
Fig. 8 is the structural schematic diagram of hollow sleeve stick in the utility model；
Fig. 9 is the main view of protective case in the utility model；
Figure 10 is the top view of protective case in the utility model；
In figure: 1, sleeve, 2, fixed structure, 3, rotational handle, 4, sliding cavity, 5, rotating cylinder, 6, connecting rod, 7, sliding block, 8,
Side plate, 9, hinge bar, 10, support plate, 11, shaft, 12, gripper sleeve, 13, Si Shizhen, 14, protective case, 15, protective case is anti-skidding
Line, 16, accommodating chamber, 17, osteotome handle, 18, slide cartridge, 19, sliding axle, 20, guide pad, 21, guide rail, 22, handle, 23, serrated knife,
24, T-type knife, 25, internal screw thread, 26, pushing block, 27, card slot bar, 28, briquetting, 29, rotating bar, 30, external screw thread, 31, push rod sliding slot,
32, rotating bar is open, 33, pushing block anti-skid chequer, 34, hollow sleeve stick, 35, interior six sides groove.
Specific embodiment
A set of minimally invasive removal equipment of internal fixation hollow screw, as Figure 1-10 shows, including positioning device, hollow sleeve stick 34,
Osteotome, card slot equipment, protective case 14；As shown in Figs. 1-2, positioning device includes fixed structure 2, and set is connected on fixed structure 2
Cylinder 1, sleeve 1 is interior to be equipped with up and down adjustment lead screw, and up and down adjustment lead screw is connected with rotational handle 3 far from one end of fixed structure 2；On
It is bolted with up and down adjustment sliding block on lower adjusting screw, connecting rod 6 is connected on up and down adjustment sliding block, sleeve 1 is equipped with and connection
Corresponding 6 sliding slot of connecting rod of bar 6；It is connected with sliding cavity 4 in connecting rod 6, sliding block 7, sliding cavity are slidably connected in sliding cavity 4
The left and right adjusting lead screw being spirally connected with sliding block 7 is equipped in 4, left and right adjusting lead screw one end is equipped with regulation handle；It is connected with and turns on sliding block 7
Cylinder 5 is rotatably connected to shaft 11 in rotating cylinder 5, and shaft 11 is equipped with rotating bar 29, and rotating cylinder 5 is equipped with corresponding with rotating bar 29
Rotating bar sliding slot, rotating cylinder 5 be equipped with shaft fastening screw corresponding with shaft 11；Support plate 10 is connected in shaft 11,
Hinge bar 9 is hinged in the middle part of support plate 10,9 other end of hinge bar is connected with gripper sleeve 12, is equipped with this in gripper sleeve 12
Formula needle 13, gripper sleeve 12 are equipped with this 13 fastening screw of formula needle corresponding with this formula needle 13；Support plate 10 is equipped with side plate
8, side plate 8 is equipped with hinge bar sliding slot corresponding with hinge bar 9, and hinge bar 9 is equipped with spiral shell corresponding with hinge bar sliding slot
Nail, screw are equipped with nut；Connecting rod sliding slot, rotating bar sliding slot, is equipped with graduation mark on hinge bar sliding slot at sliding cavity 4.
When the utility model is used, adjusting up and down adjustment lead screw by the rotational handle 3 on sleeve 1, lowered in realization
The up and down adjustment of sliding block is saved, and then realizes the up and down adjustment of this formula needle 13；Left and right adjusting lead screw is rotated by regulation handle, is realized
The left and right adjusting of sliding block 7, and then realize the up and down adjustment of this formula needle 13；It is had an X-rayed at patient femur's neck, passes through rotating cylinder 5 and shaft
11 match, and rotate hinge bar 9, realize that this formula needle 13 is parallel with hollow screw, determine this formula needle by upper and lower and left and right adjusting
13 positions punctured；It is fixed using all parts of the fixing screws to the positioning device after adjusting, is remembered using graduation mark
Record the position of each hollow screw；Enable the utility model under primary perspective, realizes complete to the hollow screw of patient's body
Portion's positioning；It is accurately positioned, makes minimally invasive take out be easier more simply to be more convenient, young doctor or the unskilled doctor of experience is made also
It is enough operated, improves the applicability of the utility model；And perspective number is less, reduces damage of the perspective to patient and doctor.
As shown in Figure 1, fixed structure 2 includes fixed plate, fixed plate one end is connected with positioning plate, and positioning plate and sleeve 1 are solid
Connection, the fixed plate other end are connected with connecting plate calmly, and dynamic position plate is equipped between connecting plate and positioning plate, and fixed plate is equipped with and moves
The dynamic position plate slideway that position plate matches, connecting plate are equipped with dynamic position plate fastening screw corresponding with dynamic position plate.
Positioning device is fixed when the utility model is used, being matched using positioning plate with dynamic position plate, using even
Dynamic position plate fastening screw on fishplate bar pushes dynamic position plate, moves position plate to positioning plate along position plate slideway is moved, and realizes and fixes；
Positioning device is firmly fixed on operating bed using fixed structure 2, by once having an X-rayed, realizes determining for multiple hollow screws
Position when repositioning puncture, will not improve the stability of the utility model because positioning failure caused by other reasons.
As shown in figure 8, hollow sleeve stick 34 is hollow structure, 34 one end inner wall of hollow sleeve stick is equipped with corresponding with hollow screw
Interior six sides groove 35.
Six side's grooves, 35 end cap in hollow sleeve stick 34 when in use, is set to the tail end of hollow screw by hollow sleeve stick 34,
Subsequent operation carries out in hollow sleeve stick 34, prevents from because of other reasons damaging caused by patient, reduces operation pair as far as possible
It is injured caused by patient, improves the effect of Minimally Invasive Surgery.
As in Figure 3-5, osteotome includes slide cartridge 18, and 18 one end of slide cartridge is circumferentially equipped with serrated knife 23, and 18 other end of slide cartridge connects
It is connected to handle 22；Sliding axle 19 is slidably connected in the slide cartridge 18, sliding axle 19 is connected with T-type knife close to one end of serrated knife 23
24, the one end of T-type knife 24 far from handle is knife edge part, and the other end is knife spine part, and 19 other end of sliding axle is connected with osteotome
Handle 17；Sliding axle 19 is equipped with guide pad 20, and handle 22 is equipped with groove corresponding with guide pad 20, is equipped in slide cartridge 18
The guide rail 21 matched with guide pad 20, the bottom end of guide rail 21 are connected with supporting block, and guide rail 21 and the junction of supporting block are equipped with
The opening matched with guide pad 20；18 inner wall of slide cartridge, which is additionally provided with, resets guide rail 21, resets the line and guide rail 21 of guide rail 21
Line is vertical.
When the utility model is used, this formula needle 13 is extracted out, by osteotome by hollow sleeve stick after hollow sleeve stick 34 is installed in place
34 inner walls are in contact with hollow screw tail end, rotate slide cartridge 18, the serrated knife 23 on slide cartridge 18 is to hollow screw tail end hollow parts
Soft tissue, hyperplasia bone tissue cut off；After the completion of excision, sliding axle 19 is rotated using osteotome handle 17, makes guide pad 20
It is in contact with guide rail 21, pushes osteotome handle 17 that sliding axle 19 is made to move to 21 tail end of guide rail along guide rail 21 by guide pad 20,
At this time T-type knife 24 by soft tissue, the hyperplasia bone tissue of hollow screw tail end hollow parts enter hollow screw hollow parts or
Inside soft tissue, hyperplasia bone tissue；Osteotome handle 17 is rotated, sliding axle 19 is rotated by guide pad 20 along supporting block, T-type knife
24 rotate along rotation axis, and the soft tissue between T-type knife 24 and rotation axis, hyperplasia bone tissue are not cut at this time, pull osteotome hand
17 sliding axle 19 of handle is moved upwards by guide pad 20 along guide rail 21 is resetted, and T-type knife 24 drives soft tissue, hyperplasia bone tissue to enter
In slide cartridge 18；Hollow screw tail end soft tissue, hyperplasia bone tissue, which are rejected, to be completed, will be solid by extracting osteotome out in hollow sleeve stick 34
Screw is installed to hollow screw；Soft tissue, the hyperplasia bone tissue in hollow screw are rejected using osteotome, use solid screw
It in installation to hollow screw, prevents hollow screw when taking out, is broken, improve the stability that hollow screw takes out operation.
As shown in fig. 6-7, card slot equipment includes card slot bar 27, and card slot bar 27 is hollow structure, 27 one end inner wall of card slot bar
It is equipped with internal screw thread 25,27 other end of card slot bar is equipped with clamping structure；Clamping structure includes symmetrically arranged rotating bar 29, rotation
Bar 29 and 27 inner wall of card slot bar are rotatablely connected, and card slot bar 27 is equipped with rotating bar corresponding with rotating bar 29 opening 32；Card slot
Pushing block 26 is bolted on 27 outer wall of bar, card slot bar 27 is equipped with the external screw thread 30 matched with pushing block 26, and pushing block 26 is equipped with and pushes away
Block anti-skid chequer 33；The briquetting 28 matched with rotating bar 29 is slidably connected in card slot bar 27, briquetting 28 is equipped with and pushing block 26
The push rod matched, card slot bar 27 are equipped with push rod sliding slot 31 corresponding with push rod.
When the utility model is used, using 25 end of internal screw thread of card slot bar 27 if hollow screw tail end is helicitic texture
It is matched with hollow screw and hollow screw is fixed, take out hollow screw；If the screw thread stripped thread of hollow screw tail end or
Tail end is not threaded, then is fixed using tail end of the clamping structure to hollow screw, rotates pushing block 26, pushing block 26 is along card slot bar
27 is mobile, and the movement of briquetting 28 is pushed to squeeze rotating bar 29, and hollow screw tail end is fixed in the rotation of rotating bar 29, takes
Hollow screw out is fixed hollow screw using two kinds of fixed forms, improves the adaptability of the utility model.
As shown in figs. 9-10, accommodating chamber 16 corresponding with hollow screw is equipped in protective case 14, in 14 outer wall of protective case
Portion is equipped with protective case anti-skid chequer 15；After hollow screw takes out, hollow screw is put into protective case 14, prevents hollow screw to doctor
Accidental injury is coined into, the safety of the utility model is improved.
The working process of the utility model is as follows:
Work starts, and has an X-rayed at patient femur's neck, is matched by rotating cylinder 5 with shaft 11 first, rotates hinge bar 9,
It realizes that this formula needle 13 is parallel with hollow screw, the position that this formula needle 13 punctures is determined by upper and lower and left and right adjusting, uses fixation
The all parts of the positioning device after adjusting are fixed in screw, and the position of each hollow screw is recorded using graduation mark；
Then as the case may be, the graduation mark position according to record, one by one positions each hollow screw, this formula needle 13 is worn
It pierces to the hollow parts of hollow screw；Six side's grooves, 35 end cap in hollow sleeve stick 34 is set to the tail end of hollow screw.
After hollow sleeve stick 34 is installed in place, this formula needle 13 is extracted out, by osteotome by 34 inner wall of hollow sleeve stick and hollow screw tail
End is in contact, and rotates slide cartridge 18, soft tissue, hyperplasia bone tissue of the serrated knife 23 to hollow screw tail end hollow parts on slide cartridge 18
It is cut off；After the completion of excision, sliding axle 19 is rotated using osteotome handle 17, guide pad 20 is made to be in contact with guide rail 21, is pushed
Osteotome handle 17 makes sliding axle 19 move to 21 tail end of guide rail along guide rail 21 by guide pad 20, and T-type knife 24 passes through hollow at this time
Soft tissue, the hyperplasia bone tissue of screw tail end hollow parts enter hollow screw hollow parts or in soft tissues, hyperplasia bone tissue
It is internal；Osteotome handle 17 is rotated, sliding axle 19 is rotated by guide pad 20 along supporting block, and T-type knife 24 is rotated along rotation axis, at this time
Soft tissue, hyperplasia bone tissue between T-type knife 24 and rotation axis are not cut, and 17 sliding axle 19 of osteotome handle is pulled to pass through guiding
Block 20 is moved upwards along guide rail 21 is resetted, and T-type knife 24 drives soft tissue, hyperplasia bone tissue to enter in slide cartridge 18；Hollow screw tail
It holds soft tissue, hyperplasia bone tissue to reject to complete, by extracting osteotome out in hollow sleeve stick 34, solid screw is installed to hollow screw
It is interior.
If hollow screw tail end is helicitic texture, matched with hollow screw to sky using 25 end of internal screw thread of card slot bar 27
Heart screw is fixed, and takes out hollow screw；If the screw thread stripped thread or tail end of hollow screw tail end be not threaded, card is used
The tail end of hollow screw is fixed in binding structure, rotates pushing block 26, and pushing block 26 is moved along card slot bar 27, pushes briquetting 28 mobile
Rotating bar 29 is squeezed, hollow screw tail end is fixed in the rotation of rotating bar 29, takes out hollow screw；Hollow screw takes
After out, hollow screw is put into protective case 14；According to positioning, positioning taking-up is carried out to other hollow screws.
Claims (6)
1. a set of minimally invasive removal equipment of internal fixation hollow screw, it is characterised in that: including positioning device, hollow sleeve stick (34), bone
Knife, card slot equipment, protective case (14)；The positioning device includes fixed structure (2), and fixed structure is connected with sleeve on (2)
(1), up and down adjustment lead screw is equipped in sleeve (1), up and down adjustment lead screw is connected with rotational handle far from the one end of fixed structure (2)
(3)；It is bolted with up and down adjustment sliding block on the up and down adjustment lead screw, connecting rod (6), sleeve are connected on up and down adjustment sliding block
(1) it is equipped with connecting rod sliding slot corresponding with connecting rod (6)；Sliding cavity (4), sliding cavity are connected on the connecting rod (6)
(4) it is slidably connected sliding block (7) in, the left and right adjusting lead screw being spirally connected with sliding block (7), left and right adjusting silk is equipped in sliding cavity (4)
Thick stick one end is equipped with regulation handle；It is connected with rotating cylinder (5) on the sliding block (7), is rotatably connected to shaft (11) in rotating cylinder (5), turned
Axis (11) is equipped with rotating bar, and rotating cylinder (5) is equipped with rotating bar sliding slot corresponding with rotating bar, and rotating cylinder (5) is equipped with and turns
The corresponding shaft fastening screw of axis (11)；It is connected with support plate (10) on the shaft (11), it is hinged in the middle part of support plate (10)
Having hinge bar (9), hinge bar (9) other end is connected with gripper sleeve (12), it is equipped with this formula needle (13) in gripper sleeve (12),
Gripper sleeve (12) is equipped with this formula needle fastening screw corresponding with this formula needle (13)；The support plate (10) is equipped with side plate
(8), side plate (8) is equipped with hinge bar sliding slot corresponding with hinge bar (9), and hinge bar (9) is equipped with and hinge bar sliding slot phase
Corresponding screw, screw are equipped with nut；The connecting rod sliding slot, sliding cavity (4), rotating bar sliding slot, on hinge bar sliding slot
Equipped with graduation mark.
2. a set of minimally invasive removal equipment of internal fixation hollow screw as described in claim 1, it is characterised in that: the fixed structure
It (2) include fixed plate, fixed plate one end is connected with positioning plate, and positioning plate is fixedly connected with sleeve, and the fixed plate other end is connected with
Connecting plate is equipped with dynamic position plate between connecting plate and positioning plate, fixed plate is equipped with the dynamic position plate slideway matched with dynamic position plate, even
Fishplate bar is equipped with dynamic position plate fastening screw corresponding with dynamic position plate.
3. a set of minimally invasive removal equipment of internal fixation hollow screw as described in claim 1, it is characterised in that: the osteotome includes
Slide cartridge (18), slide cartridge (18) one end are circumferentially equipped with serrated knife (23), and slide cartridge (18) other end is connected with handle (22)；The slide cartridge
(18) it is slidably connected sliding axle (19) in, sliding axle (19) is connected with T-type knife (24), sliding axle close to the one end of serrated knife (23)
(19) other end is connected with osteotome handle (17)；The sliding axle (19) be equipped with guide pad (20), handle (22) be equipped with
The corresponding groove of guide pad (20), slide cartridge (18) is interior to be equipped with the guide rail (21) matched with guide pad (20), guide rail (21)
Bottom end is connected with supporting block, and guide rail (21) is equipped with the opening matched with guide pad (20) with the junction of supporting block；Slide cartridge
(18) inner wall is additionally provided with reset guide rail, and the line for resetting guide rail is vertical with the line of guide rail.
4. a set of minimally invasive removal equipment of internal fixation hollow screw as described in claim 1, it is characterised in that: the card slot equipment
Including card slot bar (27), card slot bar (27) is hollow structure, and card slot bar (27) one end inner wall is equipped with internal screw thread (25), card slot bar
(27) other end is equipped with clamping structure；The clamping structure includes symmetrically arranged rotating bar (29), rotating bar (29) and card slot
The rotation connection of bar (27) inner wall, card slot bar (27) are equipped with rotating bar corresponding with rotating bar (29) opening (32)；The card
It is bolted with pushing block (26) on channel bar (27) outer wall, card slot bar (27) is equipped with the external screw thread (30) matched with pushing block (26), pushes away
Block (26) is equipped with pushing block anti-skid chequer (33)；The briquetting matched with rotating bar (29) is slidably connected in the card slot bar (27)
(28), briquetting (28) is equipped with the push rod matched with pushing block (26), and card slot bar (27) is equipped with push rod corresponding with push rod
Sliding slot (31).
5. a set of minimally invasive removal equipment of internal fixation hollow screw as described in claim 1, it is characterised in that: the hollow sleeve stick
It (34) is hollow structure, hollow sleeve stick (34) one end inner wall is equipped with six side's grooves (35) in corresponding with hollow screw.
6. a set of minimally invasive removal equipment of internal fixation hollow screw as described in claim 1, it is characterised in that: the protective case
(14) it is equipped with accommodating chamber (16) corresponding with hollow screw in, is equipped with protective case anti-skid chequer in the middle part of protective case (14) outer wall
(15)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443363.2U CN209004184U (en) | 2018-09-04 | 2018-09-04 | Minimally invasive extracting instrument with one set of fixed hollow screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443363.2U CN209004184U (en) | 2018-09-04 | 2018-09-04 | Minimally invasive extracting instrument with one set of fixed hollow screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209004184U true CN209004184U (en) | 2019-06-21 |
Family
ID=66832309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821443363.2U Expired - Fee Related CN209004184U (en) | 2018-09-04 | 2018-09-04 | Minimally invasive extracting instrument with one set of fixed hollow screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209004184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102126A (en) * | 2021-11-15 | 2022-03-01 | 岳阳职业技术学院 | Automatic assembling equipment for disposable fetching device for laparoscopic surgery |
-
2018
- 2018-09-04 CN CN201821443363.2U patent/CN209004184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102126A (en) * | 2021-11-15 | 2022-03-01 | 岳阳职业技术学院 | Automatic assembling equipment for disposable fetching device for laparoscopic surgery |
| CN114102126B (en) * | 2021-11-15 | 2022-09-06 | 岳阳职业技术学院 | Automatic assembling equipment for disposable fetching device for laparoscopic surgery |
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