CN208725775U - Flexible shaft retractor - Google Patents
Flexible shaft retractor Download PDFInfo
- Publication number
- CN208725775U CN208725775U CN201721105283.1U CN201721105283U CN208725775U CN 208725775 U CN208725775 U CN 208725775U CN 201721105283 U CN201721105283 U CN 201721105283U CN 208725775 U CN208725775 U CN 208725775U
- Authority
- CN
- China
- Prior art keywords
- flexible shaft
- installation part
- loose joint
- protrusion
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model provides a kind of flexible shaft retractor, including fixed bracket, clamp assemblies and flexible shaft component, wherein flexible shaft component includes multiple loose joint spheres, the both ends of each loose joint sphere are respectively arranged with accommodating hole and protrusion, the protrusion of the two neighboring loose joint sphere and the accommodating hole are interference fitted, so that the multiple loose joint sphere is sequentially connected.Flexible shaft retractor in the technical solution of the utility model, flexible shaft component by the way that the loose joint sphere composition of multiple interference fits is arranged is connected and fixed bracket and clamp assemblies, so that in use, applying external force overcomes the resistance being interference fitted between protrusion and accommodating hole to keep loose joint sphere mobile, to realize that the position for retracting plate on clamp assemblies is fixed in adjusting, the convenience journey of flexible shaft retractor adjusting is improved.
Description
Technical field
The utility model relates to field of medical device, and in particular to a kind of flexible shaft retractor.
Background technique
Flexible shaft retractor is medical instrument used in a kind of surgical procedure, is adjusted at the time of surgery, using flexible shaft retractor
With the fixed position for retracting plate, the separation of traction plate and fixing human tissue are utilized to realize.Existing flexible shaft retractor is adjusted
It is inconvenient.
Utility model content
Based on this, it is necessary to which the existing flexible shaft retractor of needle adjusts inconvenient problem, proposes a kind of flexible axle convenient for adjusting
Retractor.
A kind of flexible shaft retractor, comprising:
Fixed bracket；
Clamp assemblies retract plate for installing；
Connect the flexible shaft component of the fixed bracket and the clamp assemblies, including multiple loose joint spheres, each work
The receive both ends of body are respectively arranged with accommodating hole and protrusion；
Wherein, the protrusion of the two neighboring loose joint sphere and the accommodating hole are interference fitted, so that the multiple
Loose joint sphere is sequentially connected.
The clamp assemblies include: in one of the embodiments,
Installation part, including first surface are provided with limiting section on the first surface, offer and be used on the installation part
Installation retracts the mounting groove of plate；
Regulating part offers through-hole, the installation including the positioning region matched with the limiting section on the regulating part
Part in the through-hole slidably, and the installation part matched by the limiting section with the positioning region be locked in it is described logical
In hole；
First connector is set to side of the installation part far from the mounting groove, and is connected with the flexible shaft component.
The installation part further includes the second surface opposite with the first surface in one of the embodiments, described
Offer the groove that the second surface is extended to by the inner wall of the mounting groove on installation part, accommodated in the groove it is useful in
The locking member of plate is retracted described in clamping.
In one of the embodiments, the through-hole include close to the positioning region the first inner wall and with described first in
The second opposite inner wall of wall, the distance between first inner wall and second inner wall slide into the through-hole along the installation part
Direction be gradually reduced so that when the installation part slides into the via process, second inner wall and the locking member phase
It abuts and moves the locking member into the mounting groove.
First connector includes the connecting pin of fixing end and the separate fixing end in one of the embodiments,
The fixing end is fixedly connected by fastener with the installation part, and the connecting pin matches with the accommodating hole, and with institute
State accommodating hole interference fit.
The limiting section includes the multiple card slots being continuously arranged in one of the embodiments, the positioning region for institute
State the latch that card slot matches.
The fixed bracket includes: in one of the embodiments,
Main folder block offers slideway in the main folder block；
Dynamic fixture block, is slidably disposed in the slideway, forms clamping part between the dynamic fixture block and the main folder block；
Driving member is connected with the dynamic fixture block transmission, and for driving the dynamic fixture block to slide along the slideway；
Second connector is connected with the main folder block and the flexible shaft component.
The driving member is the screw rod being arranged along the slideway in one of the embodiments, and the dynamic fixture block is equipped with
The internal screw thread to match with the screw rod, and be connected by the internal screw thread with the screw drive.
One end of second connector is fixedly linked with the main folder block in one of the embodiments, and the other end is opened
Equipped with link slot, the protrusion of the link slot and the loose joint sphere matches and matches with the protrusion interference of the loose joint sphere
It closes, second connector is connected by the link slot with the flexible shaft component.
The protrusion is spherical or segment in one of the embodiments, and the accommodating hole is to match with the protrusion interference
The spherical pore of conjunction.
Flexible shaft retractor in the technical solution of the utility model, the loose joint sphere by the way that multiple interference fits are arranged form
Flexible shaft component be connected and fixed bracket and clamp assemblies so that in use, apply external force overcome protrusion and accommodating hole it
Between the resistance that is interference fitted to make loose joint sphere mobile, to realize the position for the traction plate that adjusting is fixed on clamp assemblies, mention
The convenience degree that high flexible shaft retractor is adjusted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the utility model flexible shaft retractor；
Fig. 2 is the cross-sectional view of clamp assemblies in Fig. 1；
Fig. 3 is the structural schematic diagram of installation part in Fig. 2；
Fig. 4 is the structural schematic diagram of regulating part in Fig. 2；
Fig. 5 is support bracket fastened structural schematic diagram in Fig. 1；
Fig. 6 is support bracket fastened cross-sectional view in Fig. 1；
Fig. 7 is the structural schematic diagram of the utility model embodiment loose joint sphere.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The utility model provides a kind of flexible shaft retractor 100.
As shown in Figure 1, in one embodiment, which includes fixed bracket 10, clamp assemblies 20 and connection
Flexible shaft component 30 between fixed bracket 10 and clamp assemblies 20.
In a specific embodiment, which is fixed by fixed bracket 10 with operating table, other one
In a little specific embodiments, which can also be by the fixed surgical procedure such as bracket 10 and skull fixer
The equipment used is mutually fixed.
Clamp assemblies 20 in the present embodiment retract plate for clamping and fixing in use, which specifically may be used
To be brain spatula or medical drag hook etc., illustrate by taking brain spatula as an example in the present embodiment.In use process, brain spatula and clamp assemblies
20 are fixedly connected, then the position of clamp assemblies 20 is adjusted by flexible shaft component 30, are fixed on brain spatula on designated position, with logical
Cross brain spatula separation lesions position and normal segments.
Please refer to Fig. 1 and Fig. 7, one end of the flexible shaft component 30 in the present embodiment is connected with fixed bracket 10, the other end and
Clamp assemblies 20 are fixedly connected.In one embodiment, which includes multiple loose joint spheres 31, each loose joint ball
The both ends of body 31 are respectively arranged with accommodating hole 313 and protrusion 312, specifically, it is receiving portion 311 that loose joint sphere 31, which includes one end,
The other end is protrusion 312, forms the accommodating hole 313 to match with protrusion 312 in receiving portion 311.In a specific embodiment,
The protrusion 312 is for a sphere, it can be achieved that the rotation of all angles, in some other specific embodiment, which may be used also
To be a segment, it is equally able to achieve the rotation to multi-angle.In the present embodiment, accommodating hole 313 is to be formed in loose joint sphere 31
The spherical hollow space of receiving portion 311, the accommodating hole 313 and protrusion 312 are interference fitted, i.e. the internal diameter of the spherical hollow space is equal to or smaller
Outer diameter in protrusion 312.When protrusion 312 is contained in the accommodating hole 313, since accommodating hole 313 and 312 interference of protrusion are matched
It closes, so the resistance for preventing it from relatively moving can be generated between accommodating hole 313 and protrusion 312.
In use process, the protrusion 312 of each loose joint sphere 31 is set to the accommodating hole 313 of adjacent loose joint sphere 31
It is interior, since protrusion 312 and accommodating hole 313 are interference fit, so when protrusion 312 is set in accommodating hole 313, since it is solid
The relative position of the presence of some resistances, two neighboring loose joint sphere 31 is fixed and invariable, and when applying an external force, such as is made
With in the process, user applies an external force to loose joint sphere 31 manually, when the external force of application is greater than between two loose joint spheres 31
When intrinsic resistance, then the relative position of two neighboring loose joint sphere 31 can change, to realize the adjusting of position.
In the technical solution of the present embodiment, the flexible shaft component 30 of the composition of loose joint sphere 31 by the way that multiple interference fits are arranged
It is connected and fixed bracket 10 and clamp assemblies 20, so that in use, the relative position of adjusting loose joint sphere 31 can be passed through
To adjust the position for the traction plate being fixed on clamp assemblies 20, the convenience degree of the adjusting of flexible shaft retractor 100 is improved.
As shown in figs 2-4, in one embodiment, clamp assemblies 20 specifically include installation part 21, regulating part 22 and first
Connector 23.
Fig. 2 and Fig. 3 are please referred to, in this embodiment, the mounting groove for installing brain spatula is offered on the installation part 21
211, in use, brain spatula is installed in the mounting groove 211.Regulating part 22 in the present embodiment is matched with installation part 21,
And for installation part 21 and brain spatula to be auxiliarily fixed, specifically, a through-hole 221 is offered on regulating part 22, the through-hole 221
Match with installation part 21, installation part 21 can slide into and skid off the through-hole 221.In a specific embodiment, the installation part 21
First surface 213 on be provided with limiting section 212, and regulating part 22 is equipped with the positioning region matched with the limiting section 212
222, allow to be locked on different positions after installation part 21 slides into through-hole 221.
As shown in Fig. 2, in one embodiment, limiting section 212 is specially continuous card slot, positioning region 222 is and card slot phase
Matched latch realizes the fixation of installation part 21 and regulating part 22 when latch is arranged in card slot.
Further, in a specific embodiment, card slot is triangle, and card slot slides into through-hole 221 towards installation part 21
The inner wall in direction be inclined relative to the first surface 213 of installation part 21, and card slot slides into through-hole 221 backwards to installation part 21
Direction inner wall then perpendicular to first surface 213.Then in contrast, i.e., latch is sliding towards installation part 21 for the setting direction of latch
Enter the direction of the inner wall perpendicular to first surface 213 in the direction of through-hole 221, and latch slides into through-hole 221 backwards to installation part 21
The inner wall in direction is inclined relative to first surface 213.When installation part 21 slide into through-hole 221 when, due to card slot inner wall and
The contact surface of latch is inclined, so that installation part 21 is slid into through-hole 221 as long as installation part 21 is pushed to can be realized, and due to card
It is vertical that slot, which slides into direction backwards to installation part 21, so the inner wall of card slot is abutted against with latch, makes installation part 21 can not be from leading to
It is skidded off in hole 221.
Fig. 2 and Fig. 4 are please referred to, in order to enable installation part 21 to skid off from through-hole 221, is further being adjusted in the present embodiment
Plectrum 225 is provided on part 22, and latch is then fixed on plectrum 225, when needing to skid off installation part 21 from through-hole 221
When, then it can make latch and exact separation by stirring plectrum 225, so that installation part 21 can be skidded off from through-hole 221.
As shown in Figures 2 and 3, in another specific embodiment, installation part 21 further include with first surface 213 backwards
The second surface 214 of setting offers the groove that second surface 214 is extended to by the inner wall of mounting groove 211 on installation part 21
215, groove 215 is interior to accommodate the useful locking member 216 in clamping brain spatula.It should be understood that groove 215 and locking member 216
Quantity can be one, can also be multiple.
In a specific embodiment, through-hole 221 include close to positioning region 222 the first inner wall 223 and with the first inner wall
223 the second opposite inner walls 224, the distance between the first inner wall 223 and the second inner wall 224 slide into through-hole 221 along installation part 21
Direction be gradually reduced.And locking member 216 is specially a spherical ball, and during installation part 21 slides into through-hole 221, second
Inner wall 224 is abutted against with locking member 216, and as installation part 21 gradually slides into through-hole 221, the second inner wall 224 pushes ball to leaning on
The direction of nearly first inner wall 223 is mobile, i.e., mobile to the direction of 211 inside of mounting groove, and ball is made to lock brain spatula.
In one embodiment, the first connector 23 includes the connecting pin 232 of fixing end 231 and separate fixing end 231, Gu
Fixed end 231 is fixedly connected by fastener with installation part 21, and connecting pin 232 matches with accommodating hole 313, and with accommodating hole 313
Interference fit, clamp assemblies 20 are connected by the connecting pin 232 being set in accommodating hole 313 with flexible shaft component 30.
Further referring to Fig. 1, Fig. 5 and Fig. 6, in one embodiment, fixed bracket 10 includes main folder block 11, dynamic fixture block
12, driving member 13 and the second connector 14.
In a preferred embodiment, which is strip, specifically, can substantially cuboid or circle
Cylinder, it is clear that the main folder block 11 is also possible to other shapes, can be arranged as the case may be.In the present embodiment, 11 edge of main folder block
Its length direction offers a slideway 111, and in a specific embodiment, which is cylindrical slideway 111, it is clear that
In some other specific embodiment, the slideway 111 or other shapes.In the present embodiment, the outside of fixture block 12 is moved
The in-profile of profile and the slideway 111 matches, and is set in the slideway 111, and can be along the length direction of the slideway 111
Round-trip sliding.Clamping part is formed between main folder block 11 and dynamic fixture block 12, in use, clamping fixed bracket 10 by the clamping part
In in the structures such as operating table.
Driving member 13 in the present embodiment is used to adjust the relative position of main folder block 11 and dynamic fixture block 12.In a specific implementation
In mode, which is a screw rod, and is provided with the internal screw thread to match with the screw rod on dynamic fixture block 12, moves 12 sets of fixture block
It is connected on screw rod, and through internal screw thread with screw drive, in use, moving fixture block 12 due to internal screw thread when screw rod rotation
Presence will be relatively moved with screw rod, so that fixture block 12 be made to slide in slideway 111.
In assembling process, first dynamic fixture block 12 is placed in slideway 111, then screw rod is inserted into slideway 111, and revolves
Turning screw rod screws in it in internal screw thread of dynamic fixture block 12, and screw rod is slided along the place direction of slideway 111 in order to prevent, the present embodiment
In further be provided with the first pin 16, when screw rod be inserted into slideway 111 after, on main folder block 11 along perpendicular to slideway 111 side
To the first pin 16 of insertion to limit the movement of screw rod so that screw rod be only capable of it is rotatable around its axis, and cannot be along its axis direction
Sliding.
The second connector 14 in the present embodiment is for connecting main folder block 11 and flexible shaft component 30, in a specific embodiment
In, one end and the main folder block 11 of second connector 14 are fixedly linked, and the other end is connected with flexible shaft component 30.In the present embodiment
In, one end of the second connector 14 is fixed on main folder block 11 by the second pin 15, and the other end is then equipped with link slot 141, should
The specific structure and size of link slot 141 can refer to above-mentioned accommodating hole 313, the loose joint sphere 31 of 30 end of flexible shaft component
Protrusion 312 is contained in the link slot 141 of the second connector 14, to realize the connection of fixation kit and flexible shaft component 30.
Further, in one embodiment, above-mentioned clamp assemblies 20 and/or flexible shaft component 30 are made of nonmetallic materials,
Such as the materials such as natural resin, artificial synthetic resin, PEEK resin or engineering plastics, in the present embodiment by taking PPSU resin as an example.
It should be understood that, in order to understand specific details, the equipment such as X-ray machine may be used to be detected durings operation etc., this
In embodiment, since clamp assemblies 20 and flexible shaft component 30 are formed from a resin, it is possible to effectively avoid producing imaging process
Raw influence.
Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of flexible shaft retractor characterized by comprising
Fixed bracket；
Clamp assemblies retract plate for installing, and the clamp assemblies include:
Installation part, including first surface are provided with limiting section on the first surface, offer on the installation part for installing
Retract the mounting groove of plate；
Regulating part offers through-hole including the positioning region matched with the limiting section on the regulating part, the installation part exists
In the through-hole slidably, and the installation part is matched with the positioning region by the limiting section and is locked in the through-hole
It is interior；
First connector is set to side of the installation part far from the mounting groove；And
Connect the flexible shaft component of the fixed bracket and the clamp assemblies, including multiple loose joint spheres, each loose joint ball
The both ends of body are respectively arranged with accommodating hole and protrusion, and first connector is connected with the flexible shaft component；
Wherein, the protrusion of the two neighboring loose joint sphere and the accommodating hole are interference fitted, so that the multiple loose joint
Sphere is sequentially connected.
2. flexible shaft retractor according to claim 1, which is characterized in that the installation part further includes and the first surface
Opposite second surface offers the groove that the second surface is extended to by the inner wall of the mounting groove on the installation part,
The useful locking member that plate is retracted described in clamping is accommodated in the groove.
3. flexible shaft retractor according to claim 2, which is characterized in that the through-hole includes close to the of the positioning region
One inner wall and second inner wall opposite with first inner wall, the distance between first inner wall and second inner wall are along institute
It states installation part and slides into the direction of the through-hole and be gradually reduced, so that when the installation part slides into the via process, described the
Two inner walls abut against with the locking member and move the locking member into the mounting groove.
4. flexible shaft retractor according to claim 1, which is characterized in that first connector includes fixing end and separate
The connecting pin of the fixing end, the fixing end are fixedly connected by fastener with the installation part, the connecting pin with it is described
Accommodating hole matches, and is interference fitted with the accommodating hole.
5. flexible shaft retractor according to claim 1, which is characterized in that the limiting section includes the multiple cards being continuously arranged
Slot, the positioning region are the latch to match with the card slot.
6. flexible shaft retractor according to claim 1, which is characterized in that the fixed bracket includes:
Main folder block offers slideway in the main folder block；
Dynamic fixture block, is slidably disposed in the slideway, forms clamping part between the dynamic fixture block and the main folder block；
Driving member is connected with the dynamic fixture block transmission, and for driving the dynamic fixture block to slide along the slideway；
Second connector is connected with the main folder block and the flexible shaft component.
7. flexible shaft retractor according to claim 6, which is characterized in that the driving member is the spiral shell being arranged along the slideway
Bar, the dynamic fixture block is equipped with the internal screw thread to match with the screw rod, and passes through the internal screw thread and the screw drive phase
Even.
8. flexible shaft retractor according to claim 6, which is characterized in that one end of second connector and the main folder
Block is fixedly linked, and the other end offers link slot, the protrusion of the link slot and the loose joint sphere match and with the work
It receives the protrusion interference fit of body, second connector is connected by the link slot with the flexible shaft component.
9. flexible shaft retractor according to claim 1-8, which is characterized in that the protrusion is spherical or segment,
The accommodating hole is the spherical pore being interference fitted with the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105283.1U CN208725775U (en) | 2017-08-30 | 2017-08-30 | Flexible shaft retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105283.1U CN208725775U (en) | 2017-08-30 | 2017-08-30 | Flexible shaft retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208725775U true CN208725775U (en) | 2019-04-12 |
Family
ID=66020146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721105283.1U Active CN208725775U (en) | 2017-08-30 | 2017-08-30 | Flexible shaft retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208725775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729813A (en) * | 2021-10-08 | 2021-12-03 | 中国人民解放军空军军医大学 | Intranasal craniocerebral operation is with leading out device |
-
2017
- 2017-08-30 CN CN201721105283.1U patent/CN208725775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729813A (en) * | 2021-10-08 | 2021-12-03 | 中国人民解放军空军军医大学 | Intranasal craniocerebral operation is with leading out device |
| CN113729813B (en) * | 2021-10-08 | 2023-07-14 | 中国人民解放军空军军医大学 | Retractor for transnasal craniocerebral operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9636097B2 (en) | Surgical retractor with a locking retractor blade | |
| RU2643103C2 (en) | External fixing connecting rod for fast and smooth adjustment | |
| EP2570090B1 (en) | Polyaxial bone anchoring device with enlarged pivot angle | |
| US20120259343A1 (en) | Low profile distractor apparatuses | |
| US20100059064A1 (en) | Method and Apparatus for Using a Surgical Fixture in an Intra-Operative Computed Tomography Scanner | |
| US10034662B2 (en) | Surgical retractor with a locking retractor blade and swivel side arms | |
| CN106456050A (en) | Aiming device for distal locking of intramedullary nails and methods of use | |
| TW200722030A (en) | Bone anchoring device | |
| US10159503B2 (en) | Separable guide instrument for anatomical implant | |
| TW201400082A (en) | Bone anchor | |
| CN208725775U (en) | Flexible shaft retractor | |
| EP1879261A2 (en) | Spring lock interface engagement system | |
| CN106794033B (en) | The device fixed for external orthopedic | |
| US9592099B2 (en) | Transapical collapsible valve reference fixture | |
| EP2214269A2 (en) | Interface device | |
| JP6491185B2 (en) | Adjustable lateral condyle | |
| JP6215952B2 (en) | Means for fixing bone fragments during fracture | |
| CN112790849A (en) | Two-way pressurization limit for a distance slip screw of thighbone neck and screwdriver | |
| CN114848086A (en) | Novel minimal invasion pollex valgus osteotomy auxiliary fixing device | |
| CN201316307Y (en) | Universal long combined external fixing bracket | |
| CN214049043U (en) | Bone holder | |
| CN208799284U (en) | Needle device is held in a kind of ablation of ultrasonic guidance | |
| CN218979026U (en) | Channel fixing device capable of being opened | |
| CN215584317U (en) | Universal simple ultrasonic guided puncture frame | |
| CN209899466U (en) | Novel special operation tractor of emergency surgery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |