CN213722153U

CN213722153U - Cervical vertebra spreader

Info

Publication number: CN213722153U
Application number: CN202021454108.5U
Authority: CN
Inventors: 黎庆初; 申维波
Original assignee: Guangzhou Minyi Medical Technology Development Co ltd
Current assignee: Guangzhou Minyi Medical Technology Development Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-07-20
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a cervical vertebra struts ware, including a plurality of opening mechanism that strut, opening mechanism includes that first subassembly and the second of strutting strut the subassembly, the second struts the subassembly and can follow the first direction and be close to or keep away from first subassembly that struts, first subassembly and the second of strutting strut all include coupling assembling and strut the part, strut the part and coupling assembling's end connection, coupling assembling includes multisection adapting unit, coupling assembling connects gradually and forms coupling assembling, two adjacent adapting units connect through first pivot, first pivot is along the setting of first direction. The height of the propping component is adjusted by rotating the connecting component, so that the propping component is adjusted to a height position suitable for operation, patients with different body types are adapted, the requirements of an operator on the visual field and the operation space of an operation are met, and the smooth operation is facilitated.

Description

Cervical vertebra spreader

Technical Field

The utility model is used for the field of medical equipment, especially relate to a cervical vertebra distractor.

Background

The cervical vertebra distractor is used for expanding soft neck tissues so as to assist the operation of enucleation and fusion of the nucleus pulposus in the intervertebral disc. The cervical vertebra on the existing market leads out the apparatus and mainly falls into two kinds, and the first kind is that artifical leads out, in the operation process of solving cervical vertebra disease, leans on the artifical process of strutting that maintains cervical vertebra centrum and soft tissue, and physical power consumption is big and the dynamics of leading out is inhomogeneous, harms patient's centrum and soft tissue easily, and more serious probably influences operation operator's treatment. The second type is instrument retraction, the structure of the existing cervical vertebra retraction instrument is more focused on rigidity, large in size, space occupation and influence on operation, the length of a sleeve or a draw hook is fixed, and for a patient with a thin body, the sleeve or the draw hook is too long and influences operation of the surgical instrument; for the patient with a fat body, the sleeve or the draw hook is too short, which affects the instrument to draw the tissue, the affected part is not fully exposed, and the operation visual field is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a cervical vertebra struts ware, its height that can adjust the part that struts adapts to the patient of different sizes, satisfies operator's to the operation field of vision and operating space's demand, is favorable to going on smoothly of operation.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a cervical vertebra struts ware, includes a plurality of opening mechanism that strut, opening mechanism includes that first subassembly and the second of strut struts the subassembly, the second struts the subassembly and can follow X to being close to or keeping away from first subassembly that struts, first subassembly and the second of strut all include coupling assembling and strut the part, strut the part with coupling assembling's end connection, coupling assembling includes multisection adapting unit, coupling assembling connects gradually and forms coupling assembling, adjacent two festival coupling assembling connects through first pivot, first pivot is followed X and is set up to the setting.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the strutting mechanism further includes a supporting component, the first strutting assembly and the second strutting assembly are both installed in the supporting component, the supporting component is provided with the transmission gear along X direction, the second strutting assembly is provided with the gear engaged with the transmission gear.

In combination with the foregoing implementation manner, the utility model discloses an in certain implementation, the second struts the subassembly and is equipped with operating button and elasticity reset unit, operating button through the second pivot with the second struts the subassembly and connects, operating button has the block end and presses the end, elasticity reset unit can restrict the second struts the subassembly and follows X to being close to first subassembly that struts.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the opening mechanism includes a first opening mechanism and a second opening mechanism, and a supporting component of the first opening mechanism is connected to a supporting component of the second opening mechanism.

In combination with the above implementation manner, the utility model discloses an in some implementation manners, the support component that the second propped open the mechanism is equipped with the spread groove that sets up along length direction, be equipped with the connecting hole on the support component of first strutting mechanism, be equipped with the connecting piece in the spread groove, the connecting piece stretches into in the connecting hole, and will the support component of first strutting mechanism and second strutting mechanism connects.

In combination with the above implementation manner, in certain implementation manners of the present invention, the first opening mechanism includes a fixing pin for opening the component, and the second opening mechanism includes a drag hook for opening the component.

In combination with the above implementation manner, in certain implementation manners of the present invention, the end portion of the connecting assembly is provided with a fixing sleeve, the fixing pin has a connecting end matched with the fixing sleeve, and the fixing pin is provided with a retaining ring, a thread and a conical tip.

In combination with the above implementation manner, in certain implementation manners of the present invention, the end portion of the connecting component is provided with the connecting seat, the connecting seat is provided with a mounting groove, the top of the drag hook is embedded into the mounting groove, and is connected with the connecting seat.

In combination with the above implementation manner, in certain implementation manners of the present invention, the top of the drag hook has a connection column matched with the mounting groove, the connection column is provided with a first mounting hole, the connection seat is provided with a second mounting hole communicated with the mounting groove, a ball screw is arranged in the second mounting hole, and a ball body of the ball screw extends into the first mounting hole and is matched with the first mounting hole.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the one end of the connection component is provided with a slot, the other end of the connection component is provided with a protrusion, two adjacent protrusions and slots, and the first shaft is connected to the protrusion and the slot.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when using cervical vertebra distractor to carry out the cervical vertebra operation, adjust the height of strutting the part through rotating adapting unit to will strut the part and adjust the high position that is fit for the operation, strut the subassembly through adjusting first subassembly and the second of strutting at the ascending distance of X at last, make the part of strutting of first subassembly and the second of strutting strut the part of subassembly and strut neck soft tissue or cervical vertebra, thereby satisfy operator's operation field of vision and operating space's demand. This technical scheme's cervical vertebra distracter adjusts the height of strutting the part through setting up coupling assembling, adapts to the patient of different sizes, satisfies the operator to the demand in operation field of vision and operating space, is favorable to going on smoothly of operation.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic view of a first distraction mechanism and a second distraction mechanism according to an embodiment of the invention;

FIG. 2 is a schematic structural view of a first distraction mechanism according to an embodiment shown in FIG. 1;

FIG. 3 is a partial cross-sectional view of one embodiment first distraction mechanism shown in FIG. 1;

FIG. 4 is a schematic structural view of a second distraction mechanism according to the embodiment shown in FIG. 1;

FIG. 5 is a partial cross-sectional view of one embodiment second distraction mechanism shown in FIG. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, 2 and 4, embodiments of the present invention provide a cervical spine distractor for distracting soft neck tissue and/or the cervical spine during cervical spine surgery. The cervical vertebra struts ware includes a plurality of opening mechanism, and opening mechanism includes first subassembly 11 and the second subassembly 12 that struts, and the second struts subassembly 12 and can be followed X to being close to or keeping away from first subassembly 11 that struts to adjust the scope of strutting of cervical vertebra or neck soft tissue. It can be understood that the number of the distraction mechanisms can be 1 or more according to the distraction requirement of the operation on the cervical vertebra and the soft tissues of the neck.

Referring to fig. 1, 2 and 4, each of the first distraction assembly 11 and the second distraction assembly 12 includes a connection assembly and a distraction member, the distraction member is used for propping against and distracting cervical vertebrae or soft tissues, and the connection assembly is used for adjusting the height of the distraction member. Strut part and coupling assembling's end connection, coupling assembling includes multisection adapting unit 13, adapting unit 13 connects gradually and forms coupling assembling, two adjacent adapting unit 13 connect through first pivot 14, first pivot 14 is along X to the setting, make adapting unit 13 rotate around first pivot 14, thereby the drive struts the part and takes place the displacement in the direction of height, with the height that the regulation struts the part, adapt to the patient of different sizes. And the arrangement of the multiple connecting parts 13 can be attached to the skin, so that the ergonomic principle is met, and the operation of the patient is more convenient. Wherein, the direction of the X direction is the same as the direction of the first rotating shaft 14, which is used to indicate that the first distraction assembly 11 and the second distraction assembly 12 move away from or close to each other.

When using cervical vertebra distractor to carry out the cervical vertebra operation, adjust the height of strutting the part through rotating adapting unit 13 to will strut the part and adjust the high position that is fit for the operation, strut subassembly 12 at the ascending distance of X through adjusting first subassembly 11 and the second of strutting at last, make first subassembly 11 and the second of strutting strut the part that struts subassembly 12 strut neck soft tissue or cervical vertebra and strut, thereby satisfy the operator to the demand in operation field of vision and operating space. This technical scheme's cervical vertebra struts ware adjusts the height of strutting the part through setting up coupling assembling, adapts to the patient of different sizes, satisfies operator's operation field of vision and operating space's demand, is favorable to going on smoothly of operation.

Referring to fig. 1, 2 and 4, in some embodiments, one end of each connecting part 13 is provided with a slot 15, the other end of each connecting part 13 is provided with a protrusion 16, and the protrusions 16 and the slots 15 of two adjacent connecting parts 13 are matched and connected through the first rotating shaft 14, so that two adjacent connecting parts 13 can rotate relatively around the first rotating shaft 14 to adjust the height of the distraction part. Through the mode that arch 16 and draw-in groove 15 inlayed mutually, guarantee the holistic compactness and the security of coupling assembling, satisfy the operation requirement of operation process to medical instrument.

Referring to fig. 1 to 5, in some embodiments, the expanding mechanism further includes a support member 3, the first expanding component 11 and the second expanding component 12 are both mounted on the support member 3, a transmission gear 31 is disposed on the support member 3 along the X direction, and the second expanding component 12 is disposed with a gear 32 engaged with the transmission gear 31. In the operation process, the second distraction assembly 12 is driven to be close to or far away from the first distraction assembly 11 by the driving gear 32, so that the distances between the distraction part of the first distraction assembly 11 and the distraction part of the second distraction assembly 12 are adjusted, cervical vertebra and/or neck soft tissue are distracted, and the requirements of an operation operator on the visual field and the operation space are met. The second spreading component 12 can be mounted on the supporting component 3 in a sleeving manner, so that the second spreading component 12 can slide along the supporting component 3 under the driving of the driving gear 32, and the stability of the device is improved.

Referring to fig. 1 to 5, in some embodiments, an operating handle 33 is disposed on the gear 32, and the operating handle 33 is used for rotating the gear 32 to adjust the distance between the second spreading assembly 12 and the first spreading assembly 11 in the X direction, so as to facilitate the operation.

Referring to fig. 1 to 3, in some embodiments, the second distracting assembly 12 is provided with an operation button 4 and an elastic return element 5, the operation button 4 is connected with the second distracting assembly 12 through a second rotating shaft 41, and the operation button 4 can rotate around the second rotating shaft 41. The operation button 4 has an engaging end 42 and a pressing end 43, and the elastic restoring member 5 can restrict the second distraction assembly 12 from approaching the first distraction assembly 11 in the X direction. Specifically, when the second distraction assembly 12 is far away from the first distraction assembly 11, the pressing end 43 of the operation button 4 does not need to be pressed, the operation button 4 can rotate around the second rotating shaft 41 under the elastic action of the elastic resetting component 5, the clamping end 42 is automatically separated from the transmission gear 31 and then extends into the transmission gear 31, and the second distraction assembly 12 and the first distraction assembly 11 can still distract and fix cervical vertebrae and soft tissues without the external force action of medical personnel; when the second distraction assembly 12 is close to the first distraction assembly 11, the pressing end 43 of the operating button 4 needs to be pressed, so that the operating button 4 overcomes the resistance of the elastic resetting component 5 and separates the clamping end 42 from the transmission teeth 31, and the second distraction assembly 12 can be driven to be close to the first distraction assembly 11, thereby playing a role in limiting the second distraction assembly 12 to be close to the first distraction assembly 11 along the X direction and ensuring the safety of the operation. It is understood that the elastic restoring member 5 can be disposed around the second rotating shaft 41 by a torsion spring, or can be disposed between the pressing end 43 and the second spreading member 12 by a spring.

Referring to fig. 1, in some embodiments, the distracting mechanism includes a first distracting mechanism 1 and a second distracting mechanism 2, and a supporting part 3 of the first distracting mechanism 1 is connected with a supporting part 3 of the second distracting mechanism 2, so as to facilitate installation of the cervical vertebra distracter. Referring to fig. 1-3, in some embodiments, the end of the support component 3 of the first distraction mechanism 1 is provided with a mounting structure 34, and the mounting structure 34 is used for connecting with an external instrument to fixedly mount the cervical distractor.

It will be appreciated that the first and second distractors 1, 2 may be fixedly or removably attached. Referring to fig. 1 to 4, in some embodiments, the support part 3 of the second spreader mechanism 2 is provided with a connecting groove 35 arranged along the length direction, the support part 3 of the first spreader mechanism 1 is provided with a connecting hole 37, a connecting piece 36 is arranged in the connecting groove 35, and the connecting piece 36 extends into the connecting hole 37 and connects the support part 3 of the first spreader mechanism 1 and the support part 3 of the second spreader mechanism 2. Through setting up spread groove 35, conveniently adjust the hookup location that first opening mechanism 1 and second opened mechanism 2 to adjust the relative position that the support component 3 of first opening mechanism 1 and the support component 3 of second opening mechanism 2 strutted, thereby adapt to the requirement of different patients to cervical vertebra operation.

Referring to fig. 1, the distraction component can be a fixing pin 6 or a draw hook 8. In some embodiments, the distraction component of the first distraction mechanism 1 includes a fixation needle 6, see fig. 2 and 3, the fixation needle 6 being used to retract the cervical or neck soft tissue. The distracting part of the second distracting mechanism 2 comprises a retractor 8, see fig. 4 and 5, which retractor 8 is used to retract the soft neck tissue. Through setting up fixed needle 6 and drag hook 8 simultaneously for fixed needle 6 leads out cervical vertebra, drag hook 8 struts the neck soft tissue, accomplishes the operation that cervical vertebra and neck soft tissue strut simultaneously, satisfies the operation demand.

Referring to fig. 1 to 3, in some embodiments, the end of the connection assembly is provided with a retaining sleeve 5, and the fixing pin 6 has a connecting end 61 that cooperates with the retaining sleeve 5 to mount the fixing pin 6. The fixing needle 6 is provided with a retaining ring 62, threads 63 and a conical tip 64, and the retaining ring 62 is used for limiting the length of the connecting end 61 matched with the fixing sleeve 5, so that the fixing needle is convenient to install. The thread 63 is used for fixing the cervical vertebra centrum, preventing the cervical vertebra distractor from being separated from the cervical vertebra centrum, and ensuring the stable operation. After the fixing needle 6 extends into the cervical vertebra and cervical vertebra body through the conical tip 64, the thread 63 part of the fixing needle 6 can be conveniently extended into the cervical vertebra body and the cervical vertebra is retracted, and operation is convenient.

Referring to fig. 1, 4 and 5, in some embodiments, the end of the connecting assembly is provided with a connecting seat 7, the connecting seat 7 is provided with a mounting groove 71, and referring to fig. 4, the top of the draw hook 8 is inserted into the mounting groove 71 and connected with the connecting seat 7 to fix the draw hook 8. It is understood that the draw hook 8 and the mounting groove 71 can be fixed by screws, or a fastener can be pressed against the draw hook 8.

Referring to fig. 1, 4 and 5, in some embodiments, the top of the retractor 8 has a connecting column 81 which is matched with the mounting groove 71, the connecting column 81 is provided with a first mounting hole 82, the connecting base 7 is provided with a second mounting hole 72 which is communicated with the mounting groove 71, the second mounting hole 72 is provided with a wave ball screw 9, and a ball body 91 of the wave ball screw 9 extends into the first mounting hole 82 and is matched with the first mounting hole 82. Through setting up ripples pearl screw 9, easy to assemble with dismantle drag hook 8, the installation is firm.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides a cervical vertebra struts ware which characterized in that: including a plurality of opening mechanism, opening mechanism includes that first subassembly and the second of strutting props the subassembly, the second props the subassembly and can follow X and to being close to or keeping away from first subassembly of strutting, first subassembly and the second of strutting props the subassembly and all includes coupling assembling and struts the part, strut the part with coupling assembling's end connection, coupling assembling includes multisection adapting unit, adapting unit connects gradually and forms coupling assembling, adjacent two the adapting unit is connected through first pivot, first pivot is followed X and is set up to the setting.

2. The cervical distractor of claim 1, wherein: the opening mechanism further comprises a supporting part, the first opening component and the second opening component are both mounted on the supporting part, transmission teeth are arranged on the supporting part along the X direction, and the second opening component is provided with a gear meshed with the transmission teeth.

3. The cervical distractor of claim 2, wherein: the second struts the subassembly and is equipped with operating button and elasticity reset block, operating button through the second pivot with the second struts the subassembly and connects, operating button has the block end and presses the end, elasticity reset block can restrict the second struts the subassembly and follows X to being close to first subassembly that struts.

4. The cervical distractor of claim 2, wherein: the opening mechanism comprises a first opening mechanism and a second opening mechanism, and a supporting part of the first opening mechanism is connected with a supporting part of the second opening mechanism.

5. The cervical distractor of claim 4, wherein: the supporting component that the second propped open the mechanism is equipped with the spread groove that sets up along length direction, be equipped with the connecting hole on the supporting component of first strutting mechanism, be equipped with the connecting piece in the spread groove, the connecting piece stretches into in the connecting hole, and will the supporting component of first strutting mechanism and the supporting component of second strutting mechanism are connected.

6. The cervical distractor of claim 4, wherein: the opening component of the first opening mechanism comprises a fixing needle, and the opening component of the second opening mechanism comprises a drag hook.

7. The cervical distractor of claim 6, wherein: the tip of coupling assembling is equipped with fixed cover, fixed needle have with fixed cover complex link, fixed needle is equipped with retaining ring, screw thread and awl point.

8. The cervical distractor of claim 6, wherein: the tip of coupling assembling is equipped with the connecting seat, the connecting seat is equipped with the mounting groove, the top embedding of drag hook in the mounting groove, and with the connecting seat is connected.

9. The cervical distractor of claim 8, wherein: the top of drag hook have with mounting groove complex spliced pole, the spliced pole is equipped with first mounting hole, the connecting seat be equipped with the second mounting hole of mounting groove intercommunication, be equipped with the ripples pearl screw in the second mounting hole, the pearl body of ripples pearl screw stretches into in the first mounting hole, and with the cooperation of first mounting hole.

10. The cervical distractor of claim 1, wherein: one end of each connecting part is provided with a clamping groove, the other end of each connecting part is provided with a protrusion, and the protrusions of every two adjacent connecting parts are matched with the clamping grooves and connected through the first rotating shaft.