CN205339028U - Surgery retractor with adjustable backbone way of escape - Google Patents
Surgery retractor with adjustable backbone way of escape Download PDFInfo
- Publication number
- CN205339028U CN205339028U CN201620056267.7U CN201620056267U CN205339028U CN 205339028 U CN205339028 U CN 205339028U CN 201620056267 U CN201620056267 U CN 201620056267U CN 205339028 U CN205339028 U CN 205339028U
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- CN
- China
- Prior art keywords
- extension rod
- tractive blade
- blade
- tractive
- posterior spinal
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- 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.)
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Abstract
The embodiment of the utility model discloses surgery retractor with adjustable backbone way of escape, include the digging arm and the fixed arm that are connected by gear and rack, surgery retractor still includes extension rod and tractive blade step by step, the digging arm with the one end of fixed arm is connected with respectively extension rod step by step, the tractive blade sets up step by step on the extension rod, wherein, the one end of tractive blade is provided with the portion of inserting, the tractive blade passes through the portion of inserting is fixed in step by step on the extension rod and the perpendicular to extension rod step by step, the other end of tractive blade is provided with tooth -shaped protrusion, tooth -shaped protrusion with insert the portion set up in same one side of tractive blade, just tooth -shaped protrusion and people's physical contact. The embodiment of the utility model provides an in the surgery retractor with adjustable backbone way of escape that provides, the length and the degree of depth all can be adjusted, have guaranteed showing of the meropodium section backbone operation field of vision, ensure going on smoothly of follow -up operation technique.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of Via Posterior Spinal Approach adjustable retractor for operation.
Background technology
Posterior spinal operation is clinical in conventional one of modus operandi treating spine disorders.Posterior spinal operation includes cervical vertebra, thoracic vertebra and lumbosacral spine posterior approach, art needs paravertebral muscles, ligament tissue are retracted to both sides, to appear the bony structure such as centrally located spinous process, vertebral plate, conveniently carry out the subsequent operations such as spinal canal decompression, interior fixing and bone-graft fusion, the effect of surgery tractor is that and can be retracted by the soft tissues such as both sides muscle in art journey, avoid these structures to draw close to centre, stop appearing of surgical field of view, affect operation safety.Meanwhile, posterior spinal operation drag hook can keep again the relatively complete of above-mentioned ligament and muscle, it is to avoid the too much destruction to this structure, maintains the whole machine balancing of spinal column, reduces the generation of postoperative spinal column rear pain.
Clinical conventional spinal column rear drag hook includes two kinds at present, and one is " comb drag hook ", and another kind is " self-retractor ".Wherein comb drag hook, exist between blade and the agent structure at rear of likeness in form " comb " shape and link joint, it is ideal that the advantage of this drag hook is in that easy to use, shallow layer tissue pulls open, but the dentalation of blade is excessively sharp, it is easy to the soft tissues such as muscle injury, and dentalation is relatively short and small, inadequate for the adiposis patient drag hook degree of depth, can not fully stopping the soft tissues such as deep part muscle, the visual field exposes insufficient, affects operator operation.Self-retractor is also referred to as " dentation self-retaining retractor ", by pommel mechanical gear, both sides dentalation is strutted, it is big that the advantage of self-retractor is in that to strut strength, and can strut in deep, but its shortcoming is in that malfunction, and blade is more abundant and lateral surface is smooth, if the strength pulled open is inadequate, then drag hook easily slips, and affects procedure and even causes surgical error.
Above two drag hook all there is problems of carrying out the adjustment of drag hook length and the degree of depth simultaneously, because spinal operation sections is not changeless, when otch in short-term, surgery tractor previously can be adopted, but when operative incision is longer, during such as scoliosis surgery, incision length is very long, then it is likely to need a lot of surgery tractor to be used in combination, in surgical field of view, apparatus is more affects operation technique, additionally patient size is different with obese degree, the degree of depth of required surgery tractor is also different, patient as fat in the bodily form applies shallower drag hook can affect appearing of surgical field of view surely, increase operating time and amount of bleeding, even affect the recovery of whole surgical quality and postoperative patient.
Utility model content
This utility model embodiment provides a kind of Via Posterior Spinal Approach adjustable retractor for operation, to solve the unadjustable property of surgery tractor length and the degree of depth in prior art, have impact on appearing of the long segment spinal operation visual field, to the problem that operation causes inconvenience.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
This utility model embodiment provides a kind of Via Posterior Spinal Approach adjustable retractor for operation, including the lever arm being connected with tooth bar by gear and fixed arm, described surgery tractor also includes extension rod and tractive blade step by step, one end of described lever arm and described fixed arm be connected to described in extension rod step by step, described tractive blade be arranged on described in step by step on extension rod, wherein
One end of described tractive blade is provided with insertion section, described tractive blade by described insertion section be fixed on described in extension rod step by step on extension rod and described in being perpendicular to step by step, the other end of described tractive blade is provided with dentation, described dentation and described insertion section and is arranged at the same side of described tractive blade and described dentation and human contact.
Preferably, described extension rod step by step includes connecting portion and extension, and one end of described connecting portion is connected with described lever arm and described fixed arm, and described extension pivot bush unit is in described connecting portion.
Preferably, described extension rod step by step includes tractive blade lock hole, and described tractive blade lock hole is uniformly arranged along the extending direction step by step of described extension rod step by step, and described insertion section is detachably fixed with described tractive blade lock hole and is connected.
Preferably, described extension rod step by step includes the extension rod lock hole and the elastic locking embolus that match, and described extension rod lock hole is uniformly arranged along the extending direction step by step of described extension rod step by step, is used for the length of extension rod step by step described in regulating.
Preferably, described tractive blade is trapezoidal, is provided with the length of described dentation one end more than the length being provided with one end, insertion section.
Preferably, the described tractive blade side of described extension rod step by step is provided with coarse band.
Preferably, described surgery tractor also includes rotating door-hinge, and described lever arm and fixed arm are connected with described extension rod step by step each through described rotation door-hinge.
Preferably, described in two, extension rod be arranged in parallel along extending direction step by step step by step.
Preferably, described lever arm also includes the actuator for regulating gear position.
From above technical scheme, a kind of Via Posterior Spinal Approach adjustable retractor for operation that this utility model embodiment provides, including the lever arm being connected with tooth bar by gear and fixed arm, described surgery tractor also includes extension rod and tractive blade step by step, one end of described lever arm and described fixed arm be connected to described in extension rod step by step, described tractive blade be arranged on described in step by step on extension rod, wherein, one end of described tractive blade is provided with insertion section, described tractive blade by described insertion section be fixed on described in step by step on extension rod, and extension rod step by step described in being perpendicular to, the other end of described tractive blade is provided with dentation, described dentation and described insertion section are arranged at the same side of described tractive blade, and described dentation for and human contact.The extension rod step by step that this utility model embodiment provides can according to the length needing adjustment suitable performed the operation, when operative incision is longer, avoid multiple existing surgery tractor to use simultaneously, there is provided for doctor and operate the visual field preferably, the tractive blade of different size can be arranged as required on extension rod step by step, the degree of depth according to operative incision is adjusted, the surgery tractor that this utility model embodiment provides is easy and simple to handle, safety good, suitable in various posterior spinal operations, can effectively strut paravertebral muscles ligament tissue in posterior spinal operation.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, for those of ordinary skills, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
A kind of Via Posterior Spinal Approach adjustable retractor for operation that Fig. 1 provides for this utility model embodiment extend after structural representation；
A kind of tractive blade construction schematic diagram that Fig. 2 provides for this utility model embodiment；
A kind of tractive blade that Fig. 3 provides for this utility model embodiment and step by step extension rod connection diagram；
Structural representation when Fig. 4 does not extend for a kind of Via Posterior Spinal Approach adjustable retractor for operation that this utility model embodiment provides；
Fig. 1-Fig. 4, symbol represents:
1-is extension rod step by step, 2-gear, 3-tractive blade, 4-elastic locking embolus, 5-extension rod lock hole, 6-rotates door-hinge, 7-tractive blade lock hole, 8-gear lock hole, 9-tooth bar, 10-dentation, 11-insertion section, 12-fixes embolus, 13-lever arm, 14-fixed arm, 15-connecting portion, 16-extension.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in this utility model, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of this utility model protection.
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Referring to Fig. 1, for the structural representation after a kind of Via Posterior Spinal Approach adjustable retractor for operation prolongation that this utility model embodiment provides, surgery tractor in this utility model embodiment is applicable to cervical vertebra, thoracic vertebra and lumbosacral spine posterior approach, including the lever arm 13 being connected with tooth bar 9 by gear 2 and fixed arm 14, described surgery tractor also includes extension rod 1 and tractive blade 3 step by step, one end of described lever arm 13 and described fixed arm 14 be connected to described in extension rod 1 step by step, described tractive blade 3 be arranged on described in step by step on extension rod 1.
In this utility model embodiment, described extension rod step by step 1 includes connecting portion 15 and extension 16, and one end of described connecting portion 15 is connected with described lever arm 13 and described fixed arm 14, and described extension 16 pivot bush unit is in described connecting portion 15.Described extension 16 can be set as multiple as required, includes two extensions 16 in FIG, and described extension 16 is gradually reduced in the size being perpendicular to extending direction, is conveniently socketed step by step.
Described extension rod step by step 1 also includes the extension rod lock hole 5 and the elastic locking embolus 4 that match, described extension rod lock hole 5 is uniformly arranged along the extending direction step by step of described extension rod step by step 1, described connecting portion 15 and described extension 16 are all equidistantly provided with several described extension rod lock hole 5 and elastic locking embolus 4, are used for the length of extension rod 1 step by step described in regulating.Be located along the same line near the center of circle of the end face of all described extension rod lock hole 5 of described elastic locking embolus 4, other end is positioned in same level, and can guarantee that each portion is connected firmly when being attached.When described extension 16 and described connecting portion 15 according to required set length after, be stuck in described extension rod lock hole 5 by described elastic locking embolus 4, be relatively fixed between described extension 16 and described connecting portion 15, described in namely, extension rod 1 length is determined step by step.
In operation process, by described in regulating step by step extension rod 1 adapt to the length of different operative site, when the degree of depth of satisfied different operative sites, then need to regulate the tractive blade 3 during this utility model is implemented, as shown in Figure 2, one end of described tractive blade 3 is provided with insertion section 11, described tractive blade 3 by described insertion section 11 be fixed on described in step by step on extension rod 1, and extension rod 1 step by step described in being perpendicular to, the other end of described tractive blade 3 is provided with dentation 10, described dentation 10 and described insertion section 11 are arranged at the same side of described tractive blade 3, and described dentation 10 for and human contact.The tractive blade 3 that this utility model embodiment provides, described insertion section 11 and dentation 10 are each perpendicular to described tractive blade 3.
Described tractive blade 3 is trapezoidal, it is provided with one end length of described dentation 10 more than the length being provided with one end, insertion section 11, to increase the contact area with tissue, guarantee that tissue is retracted by described surgery tractor, described tractive blade 3 side of described extension rod step by step 1 is provided with coarse band, increase the frictional force between described tractive blade 3 and tissue, it is ensured that tissue not easily skids off, affect the operation visual field of doctor.
In this utility model embodiment, difference according to the operative site degree of depth, described tractive blade 3 includes plurality of specifications, in fig. 2, include the tractive blade of three kinds of different sizes, the vertical-direction length respectively 8cm of described tractive blade 3,10cm and 12cm, certainly, described tractive blade 3 may be made as other specifications, only need to meet operation needs.
The shape of above-mentioned tractive blade and specification are one of which implementation; but the restriction of this utility model protection domain should not be it can be used as; those skilled in the art may select other combining form according to practical situation, and it all should fall within protection domain of the present utility model.
In this utility model embodiment, described extension rod step by step 1 includes tractive blade lock hole 7, described tractive blade lock hole 7 is uniformly arranged along the extending direction step by step of described extension rod step by step 1, and described insertion section 11 is detachably fixed with described tractive blade lock hole 7 and is connected.Described insertion section 11 is provided with the circular hole matched with described tractive blade lock hole 7, when needing to use, described insertion section 11 and described tractive blade lock hole 7 are attached by fixing embolus 12, when receiving, described fixing embolus 12 is removed, described tractive blade 3 and described extension rod step by step 1 can be separated, conveniently arrange storage, when needing the tractive blade 3 of different size, convenient replacing in time.
Described surgery tractor also includes rotating door-hinge 6, described lever arm 13 and fixed arm 14 are connected with described extension rod step by step 1 each through described rotation door-hinge 6, prevent described lever arm 13 and described fixed arm 14 when operation from tilting, can after retracting otch, under press described lever arm 13 and fixed arm 14, rotate around rotating door-hinge 6, it is ensured that described lever arm 13 and fixed arm 14 are on same level direction with described extension rod step by step 1.
Described gear 2 side in this utility model embodiment is provided with gear lock hole 8, it is used for placing described fixing embolus 12, needed for art mouth, width is determined by the relative position of the gear 2 in surgery tractor with tooth bar 9, after the relative position of described gear 2 and tooth bar 9 is determined, needs remain unchanged, and now, the fixing embolus 12 in described gear lock hole 8 plays the effect pinning gear 2, guarantee that described gear 2 cannot be carried out rotating, thus fixing described in two distance between extension rod 1 step by step.
Described lever arm 13 is additionally provided with the actuator for regulating described gear 2, it is possible to the accurate distance regulated between described gear 2 and tooth bar 9.
The described surgery tractor that this utility model embodiment provides, described in two, extension rod 1 be arranged in parallel along extending direction step by step step by step.Make the width between the otch retracted consistent, it is ensured that surgical field of view open.
The set-up mode of above-mentioned extension rod step by step is one of which implementation; but the restriction of this utility model protection domain should not be it can be used as; those skilled in the art may select other combining form according to practical situation, and it all should fall within protection domain of the present utility model.
Certainly, described in two, extension rod 1 may be made as " V " shape step by step, and described surgery tractor is Y-shaped, is hinged between described lever arm 13, fixed arm 14 and described extension rod step by step 1.
The surgery tractor that this utility model embodiment provides adopts medical stainless steel to make, through high-temperature sterilization, and can Reusability.
The surgery tractor that this utility model embodiment provides is in use, first the particularity according to spinal column each sections rear anatomical structure, in conjunction with the requirement to operation incision length of the concrete state of an illness, cut skin, subcutaneous and back fascia tissue successively, be close to both sides vertebral plates and peel off paraspinal muscle.
The degree of depth of the tractive blade being placed in otch by described tractive blade 3 to observe which kind of model is suitable, then this kind of model is all selected, the insertion section 11 of described tractive blade 3 is inserted in tractive blade lock hole 7, it is then placed in described fixing embolus 12 and locks described tractive blade 3, then described in successively tractive blade 3 suitable for all degree of depth being arranged on step by step on extension rod 1, then according to incision length adjust described in the length of extension rod 1 step by step, by the described elastic locking embolus 4 length at extension rod 1 step by step described in the position adjustments of extension rod lock hole 5, when described elastic locking embolus 4 pulls up, described extension rod step by step 1 can move freely along extension rod extending direction, after described elastic locking embolus 4 unclamps, when being stuck in described extension rod lock hole 5, described extension rod step by step 1 is fixed.
Adjust after properly, under the assistance of periosteal elevator, place described posterior spinal operation drag hook, guarantee that both sides paraspinal muscle all struts outside described tractive blade 3, the dentation 10 of described tractive blade 3 bottom design, increase the grasping force of tractive blade 3 and muscle, prevent from slipping, appear operating field, and described tractive blade 3 near the side of extension rod 1 step by step, design has coarse band, described surgery tractor and paraspinal muscle is made to fit tightly, it is not susceptible to slide, when described fixing embolus 12 is positioned in swing pinion lock hole 8 after retracting satisfaction by otch, prevent swing pinion 2 movable.
Retract and under after otch, press swing pinion 2 part can rotate around rotating door-hinge 6, it is prevented that swing pinion 2 part tilts.Above-mentioned steps ensure that being smoothed out of following operation technique (decompression, bone grafting, interior fixing etc.).
This utility model is easy and simple to handle, safety good, suitable in various posterior spinal operations, can effectively strut paravertebral muscles ligament tissue in posterior spinal operation and can be adjusted, provide for patient the adjustable operation drag hook of better surgical field of view according to operative incision length, the degree of depth.
It should be noted that, in this article, the such as relational terms of " first " and " second " or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this utility model.The multiple amendment of these embodiments be will be apparent to one skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. a Via Posterior Spinal Approach adjustable retractor for operation, including the lever arm (13) being connected with tooth bar (9) by gear (2) and fixed arm (14), it is characterized in that, described surgery tractor also includes extension rod (1) and tractive blade (3) step by step, one end of described lever arm (13) and described fixed arm (14) be connected to described in extension rod (1) step by step, described tractive blade (3) be arranged on described in step by step on extension rod (1), wherein
One end of described tractive blade (3) is provided with insertion section (11), described tractive blade (3) by described insertion section (11) be fixed on described in extension rod (1) is upper step by step and extension rod (1) step by step described in being perpendicular to, the other end of described tractive blade (3) is provided with dentation (10), and described dentation (10) and described insertion section (11) are arranged at the same side of described tractive blade (3) and described dentation (10) and human contact.
2. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterized in that, described extension rod step by step (1) includes connecting portion (15) and extension (16), one end of described connecting portion (15) is connected with described lever arm (13) and described fixed arm (14), and described extension (16) pivot bush unit is in described connecting portion (15).
3. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterized in that, described extension rod step by step (1) includes tractive blade lock hole (7), described tractive blade lock hole (7) is uniformly arranged along the extending direction step by step of described extension rod step by step (1), and described insertion section (11) are detachably fixed with described tractive blade lock hole (7) and are connected.
4. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterized in that, described extension rod step by step (1) includes the extension rod lock hole (5) and the elastic locking embolus (4) that match, and described extension rod lock hole (5) is uniformly arranged along the extending direction step by step of described extension rod step by step (1).
5. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterized in that, described tractive blade (3) is trapezoidal, is provided with the length of described dentation (10) one end more than the length being provided with insertion section (11) one end.
6. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterised in that described tractive blade (3) side of described extension rod step by step (1) is provided with coarse band.
7. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterized in that, described surgery tractor also includes rotating door-hinge (6), and described lever arm (13) and fixed arm (14) are connected with described extension rod step by step (1) each through described rotation door-hinge (6).
8. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterised in that described in two, extension rod (1) be arranged in parallel along extending direction step by step step by step.
9. Via Posterior Spinal Approach adjustable retractor for operation according to claim 1, it is characterised in that described lever arm (13) also includes actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056267.7U CN205339028U (en) | 2016-01-21 | 2016-01-21 | Surgery retractor with adjustable backbone way of escape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056267.7U CN205339028U (en) | 2016-01-21 | 2016-01-21 | Surgery retractor with adjustable backbone way of escape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205339028U true CN205339028U (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620056267.7U Expired - Fee Related CN205339028U (en) | 2016-01-21 | 2016-01-21 | Surgery retractor with adjustable backbone way of escape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205339028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433998A (en) * | 2016-01-21 | 2016-03-30 | 王洪伟 | Spinal posterior adjustable operation retractor |
| CN109431559A (en) * | 2018-12-04 | 2019-03-08 | 先健科技(深圳)有限公司 | Expander |
-
2016
- 2016-01-21 CN CN201620056267.7U patent/CN205339028U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433998A (en) * | 2016-01-21 | 2016-03-30 | 王洪伟 | Spinal posterior adjustable operation retractor |
| CN105433998B (en) * | 2016-01-21 | 2018-05-15 | 王洪伟 | A kind of Via Posterior Spinal Approach adjustable retractor for operation |
| CN109431559A (en) * | 2018-12-04 | 2019-03-08 | 先健科技(深圳)有限公司 | Expander |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20180121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |