CN204379507U - A kind of domestic traction apparatus for cervical vertebrae - Google Patents
A kind of domestic traction apparatus for cervical vertebrae Download PDFInfo
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- CN204379507U CN204379507U CN201520008467.0U CN201520008467U CN204379507U CN 204379507 U CN204379507 U CN 204379507U CN 201520008467 U CN201520008467 U CN 201520008467U CN 204379507 U CN204379507 U CN 204379507U
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- bar
- wire spool
- cervical vertebrae
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- spiral
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Abstract
The utility model discloses a kind of domestic traction apparatus for cervical vertebrae, solve existing traction apparatus for cervical vertebrae exist patient's experience degree low, use inconvenience, floor space is large and holds flimsy problem.This utility model comprises the shell for being placed on the chair back, all be arranged on the coiling apparatus in this shell and rack and pinion drive mechanism, be connected with rack and pinion drive mechanism and the expansion link mechanism of extended housing exterior, be arranged on the dwang of this expansion link mechanism end, and be arranged on the traction rope sling on this dwang, for being inserted in completely by human body head; Described coiling apparatus is connected with rack and pinion drive mechanism by rotating shaft.The effect that this utility model structure is simple, reasonable in design, greatly improve cervical traction, and all parts all can be accommodated in shell, it is exactly a shell that its appearance is seemed, thus not only good looking appearance, and from being convenient for carrying, this utility model is applicable to applying very much.
Description
Technical field
This utility model relates to a kind of traction apparatus for cervical vertebrae, and what be specifically related to is a kind of domestic traction apparatus for cervical vertebrae.
Background technology
Cervical spondylosis is a kind of disease needing to take long-term traction therapeutic, because effective traction can remove the compressing of nerve, blood vessel, spinal cord, and rapid recovery cervical spondylosis symptom.Specifically, during cervical traction, mainly entangled the head of human body by some traction rope slings, traction of then slowly rising, thus, musculi colli spasm can be removed, alleviating pain symptom, increases intervertebral space and intervertebral foramina, thus is conducive to vertebral pulp and the fibrous annulus tissue reset of evagination, alleviate and remove root compression and stimulation, promoting nerve root absorption of edema.Simultaneously, it can also remove vertebrarterial compressing, blood circulation promoting, thus be conducive to local congestion swelling and hypertrophy disappear, the joint capsule of absent-mindedness adhesion, improves and recovers uncovertebral joint, the dislocation of adjustment Minor articulus and centrum olisthe, adjust and recover disrupted cervical vertebra internal and external equilibrium, and then recovering the normal function of cervical vertebra.
At present, traction apparatus for cervical vertebrae mainly contains two large classes, and a Lei Shi hospital specialty traction chair, a class is for individual's traction apparatus in the family.At present, for the traction apparatus for cervical vertebrae that family uses, be generally the traction apparatus of stress point in omoplate position and simple and easy traction chair, the major defect of this few series products, when being traction on the one hand, the stressed very big discomfort causing patient of omoplate, reduces the experience degree of patient; Be then that simple and easy traction chair floor space is comparatively large, use inconvenience on the other hand, and very easily damage.
Utility model content
The purpose of this utility model is to provide a kind of domestic traction apparatus for cervical vertebrae, mainly solve existing traction apparatus for cervical vertebrae exist patient's experience degree low, use inconvenience, floor space is large and holds flimsy problem.This utility model only needs the chair of band backrest common in a family, just can realize and therapeutic effect that large-scale traction chair is same, without the need to taking any careat, easy to use and not fragile.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of domestic traction apparatus for cervical vertebrae, comprise the shell for being placed on the chair back, all be arranged on the coiling apparatus in this shell and rack and pinion drive mechanism, be connected with rack and pinion drive mechanism and the expansion link mechanism of extended housing exterior, be arranged on the dwang of this expansion link mechanism end, and be arranged on the traction rope sling on this dwang, for being inserted in completely by human body head; Described coiling apparatus is connected with rack and pinion drive mechanism by rotating shaft.
Specifically, described coiling apparatus comprises the housing be made up of left shell and right shell body, to be arranged in this housing and the wire spool be connected with rotating shaft one end, be arranged on the position-limit mechanism on this wire spool and the line box with opening, be wrapped in the spiral on wire spool, be arranged on this spiral one end, for spiral is pulled out so that the manual backup driving wire spool to rotate, be arranged on the locating rod in housing, place in online box and one end and fix online box opening part, the wind spring that the other end is connected with wire spool, and be arranged in inner walls, and the lockable mechanism realizing wire spool and locate is coordinated with position-limit mechanism, described spiral one end is walked around locating rod and changes pull-out direction.
Specifically, described position-limit mechanism comprises and is movably arranged on wire spool and is respectively equipped with the ratchet of projection and fixture block, and is arranged on the locating piece on wire spool; Described locating piece is provided with all for snapping in the first draw-in groove and second draw-in groove of projection.
Further, described lockable mechanism is at least three, and around being distributed in inner walls; Each lockable mechanism includes fixed block, is arranged on this fixed block, for snapping in the 3rd draw-in groove of fixture block, and is opened in the gathering sill on fixed block, for making fixture block skid off fixed block from the 3rd draw-in groove.
Specifically, described manual backup comprises the contiguous block being arranged on spiral one end, and is arranged on the hand draw ring on this contiguous block.
Specifically, described rack and pinion drive mechanism comprises the first gear be fixed on the rotating shaft other end, with this first gears meshing and the two gear ratio be 1: 3 the second gear, and with the tooth bar of this second gears meshing; Described expansion link mechanism is fixed on this tooth bar top.
Specifically, described expansion link mechanism comprise to be connected with dwang in bar, and elastic mechanism and be fixed on the hollow outer bar at tooth bar top; Described interior bar to be connected with hollow outer bar by elastic mechanism and elastic mechanism can control the built-in length of interior bar in hollow outer bar.
Again further, described elastic mechanism comprises and to be threaded with hollow outer bar and inside is provided with the bar cover of circular cone, and to be fixed on hollow outer bar and to be positioned at the inner rubber ring clamping bar when bar cover screwing, unclamp bar when unscrewing of bar cover.
Compared with prior art, this utility model has following beneficial effect:
(1) this utility model is rational in infrastructure, designs ingenious, easy to use.
(2) this utility model is by the cooperation of coiling apparatus, rack and pinion drive mechanism, expansion link mechanism, the traction of cervical vertebra is achieved in the mode of all parts interlock, patient only needs the height adjusting expansion link, then traction rope sling is utilized to entangle head, and pull or unclamp spiral, expansion link mechanism can be made to increase or decline, realizing the orderly traction therapeutic of cervical vertebra.Cervical traction control mode of the present utility model not only simple operation, traction effect are all good, and abandoned complicated structural design, thus the cost of manufacture is reduced well, and improve the experience degree of patient, and because it can be placed on the enterprising enforcement use of common chair, therefore indoor any area also can not be taken.
(3) this utility model is provided with the first gear and the second gear that gear ratio is 1: 3, can control spiral and pull the velocity ratio with expansion link rectilinear motion, not only meet the use habit of people, and can ensure therapeutic effect and the safety of cervical traction.
(4) this utility model utilizes the elastic mechanism arranged to adjust the collapsing length of interior bar, while the people of different sitting height can be facilitated to carry out cervical vertebrae traction, again can firm well in bar, thus effectively expand applicable surface of the present utility model.
(5) this utility model expansion link mechanism and traction rope sling can be completely retracted in shell, not only good looking appearance, and very conveniently carry, add cervical traction effective, therefore, it has market application foreground widely, is highly suitable in family and promotes the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is decomposing schematic representation of the present utility model.
Fig. 3 is the postrotational schematic diagram of Fig. 2.
Fig. 4 is the internal structure schematic diagram of this utility model parts thereof.
Fig. 5 is the structural representation of ratchet.
Fig. 6 is the structural representation of position-limit mechanism.
Fig. 7 is the structural representation of locating piece.
Fig. 8 is the structural representation of lockable mechanism.
Fig. 9 is the structural representation of pinion and rack.
Figure 10 is the structural representation of elastic mechanism.
Figure 11 is the adjustment schematic diagram that interior bar stretches into hollow outer pole length.
Figure 12 is spiral fixture block slip schematic diagram on the first work surface when pulling.
Figure 13 is the schematic diagram of fixture block when sticking into the 3rd draw-in groove.
Figure 14 is spiral fixture block slip schematic diagram on the second work surface when pulling.
Wherein, the parts name that Reference numeral is corresponding is called:
1-shell, 2-rotating shaft, 3-housing, 4-wire spool, 5-spiral, 6-line box, 7-wind spring, 8-projection, 9-fixture block, 10-ratchet, 11-locating piece, 12-first draw-in groove, 13-second draw-in groove, 14-fixed block, 15-the 3rd draw-in groove, 16-first work surface, 17-second work surface, 18-gathering sill, 19-locating rod, 20-contiguous block, 21-hand draw ring, 22-first gear, 23-second gear, 24-tooth bar, the hollow outer bar of 25-, 26-bar cover, 27-circular cone, 28-rubber ring, bar in 29-, 30-dwang, 31-draws rope sling.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, this utility model is mainly used in carrying out cervical traction to human body, it comprises shell 1, coiling apparatus, rack and pinion drive mechanism, expansion link mechanism, dwang 30, traction rope sling 31, wherein, coiling apparatus, rack and pinion drive mechanism are all arranged in shell 1, expansion link mechanism is connected with rack and-pinion mechanism and stretches out shell 1 outside, and dwang 30 and expansion link mechanism are rotationally connected, and draw rope sling 31 and are then arranged on dwang 30 end.
As shown in figs. 2 to 4, described coiling apparatus comprises the housing 3 be made up of left shell and right shell body, to be arranged in this housing 3 and the wire spool 4 be connected with rotating shaft 2 one end, be arranged on the position-limit mechanism on this wire spool 4 and the line box 6 with opening, be wrapped in the spiral 5 on wire spool 4, be arranged on this spiral 5 one end, for spiral is pulled out so that the manual backup driving wire spool to rotate, be arranged on the locating rod 19 in housing 3, to place in online box 6 and online box opening part is fixed in one end, the wind spring 7 that the other end is connected with wire spool 4, and be arranged on housing 3 inwall, and the lockable mechanism realizing wire spool and locate is coordinated with position-limit mechanism.Described position-limit mechanism and lockable mechanism coordinate, the location of wire spool 4 can be realized, wherein, as shown in Fig. 5 ~ 7, position-limit mechanism comprises and is movably arranged on wire spool 4 and is respectively equipped with the ratchet 10 of projection 8 and fixture block 9, and is arranged on the locating piece 11 on wire spool 4; Described locating piece 11 is provided with all for snapping in the first draw-in groove 12 and the second draw-in groove 13 of projection 8.As shown in Figure 8, described lockable mechanism is at least three, and around being distributed on housing 3 inwall; Each lockable mechanism includes fixed block 14, is arranged on this fixed block 14, for snapping in the 3rd draw-in groove 15 of fixture block 9, and is opened in the gathering sill 18 on fixed block 14, for making fixture block skid off fixed block from the 3rd draw-in groove.Locating rod 19 is walked around in described spiral 5 one end, so can change the direction of the pull-out of spiral 5, makes it identical with the direction at traction rope sling 31 place, as shown in Figure 4.
Described manual backup then for being pulled out by spiral 5, thus drives wire spool 4 to rotate, and as shown in figures 1-4, specifically, this manual backup comprises the contiguous block 20 being arranged on spiral 5 one end, and is arranged on the hand draw ring 21 on this contiguous block 20.
As shown in Figure 9, described rack and pinion drive mechanism is under wire spool drives, expansion link mechanism can be driven to rise or decline, this rack and pinion drive mechanism comprises the first gear 22 be fixed on rotating shaft 2 other end, engage with this first gear 22 and the two gear ratio be 1: 3 the second gear 23, and the tooth bar 24 engaged with this second gear 23.Described expansion link mechanism then comprise to be connected with dwang 30 in bar 29, and elastic mechanism and be fixed on the hollow outer bar 25 at tooth bar 24 top; Described interior bar 29 to be connected with hollow outer bar 25 by elastic mechanism and elastic mechanism can control the built-in length of interior bar 29 in hollow outer bar 25.As shown in Figure 10, described elastic mechanism is for realizing clamping or unclamping interior bar 29, it comprises and to be threaded with hollow outer bar 25 and the bar that inside is provided with circular cone 27 overlaps 26, and to be fixed on hollow outer bar 25 and to be positioned at the rubber ring 28 clamping bar when bar cover screwing, unclamp bar when unscrewing that bar overlaps 26 inside, Figure 11 is the schematic diagram of bar 29 built-in length in bar cover 26 adjustment, and the arrow in figure is indication rod cover 26 and the moving direction of interior bar 29 and the clamping direction of rubber ring 28 respectively.
Work process of the present utility model is as follows:
Be placed on by this utility model as " back cushion " on chair, then people leans against (or arranging cushion on shell) on shell 1.Then, unscrew bar cover 26, make rubber ring 28 unclamp interior bar 29, then interior bar 29 is pulled out from hollow outer bar 25, and rotary motion bar 30, then, adjust the extension elongation of interior bar 29 according to human body sitting height, then screw bar cover 26, due to the effect of the circular cone 27 in bar cover 26, make rubber ring 28 again clamp interior bar 29, interior bar 29 can be fixed, finally again traction rope sling 31 is enclosed within the head of people.
After work to be prepared is ready, patient starts to catch hand draw ring 21 with hands, and then pull outward out spiral 5, drives wire spool 4 to rotate, then drive the first gear 22 to rotate by rotating shaft 2 while spiral 5 is drawn out.First gear 22 drives the second gear 23 to rotate while rotating, and the second gear 23 has driven tooth bar 24 toward rising while rotating, because the gear ratio of the first gear 22 and the second gear 23 is 1: 3, therefore the rotating ratio of the first gear 22, second gear 23 is 3: 1, thus, the velocity ratio that the speed of drawing outside spiral 5 and tooth bar 24 rise just is close to 3: 1, namely the speed that rises than tooth bar 24 of spiral 5 outer pulling rate degree is fast, so both can meet the use habit of people, the effect & Safety of cervical traction can have been ensured again.Tooth bar 24, while rising, can drive hollow outer bar 25 to rise together and stretch out shell 1 outside, thus in driving successively, bar 29, dwang 30 and traction rope sling 31 slowly rise, and so just can carry out traction session to neck.
As shown in Figure 12 ~ 14, when drawing spiral 5 outside, in coiling apparatus, the course of action of all parts is: during original state, and wind spring 7 is in original state, and the projection 8 on ratchet 10 is stuck in the second draw-in groove 13.When drawing spiral 5 outward, because spiral 5 drives wire spool 4 to rotate, wind spring 7 is thus made to be rolled tightly, simultaneously, ratchet 10 rotates and makes the projection 8 on it snap onto in the first draw-in groove 12, the first work surface 16 of a fixture block 9 then fixed block 14 wherein slides, as shown in figure 12.When spiral 5 is pulled or is pulled to certain position, unclamp hand draw ring 21 a little, then under the effect of wind spring 7 elastic force, wire spool 4 rotates toward take-up direction, until make the first work surface 16 of fixture block 9 fixed block 14 wherein slides in the 3rd draw-in groove 15 of this fixed block 14 via gathering sill 18, now, user can hear a sound of " click ", spiral 5 is no longer toward reclaiming simultaneously, because fixture block 9 is stuck in the rotation limiting wire spool 4 in the 3rd draw-in groove 15, so just complete outlet action, as shown in figure 13.Then, when user continues to pull spiral 5 forward again, ratchet 10 rotates along with wire spool 4, make fixture block 9 thus the 3rd draw-in groove 15 out, and on the second work surface 17 of fixed block 14 slide, drive ratchet 10 turn to the second draw-in groove 13 place, as shown in figure 14.Now, wire spool 4 can rotate along take-up direction, and thus under the elastic force effect of wind spring 7, wire spool 4 is driven and rotates along take-up direction, and then is regained by spiral 5.The present embodiment is provided with three fixed blocks (quantity can suitably increase and decrease), the effect that can stop at an arbitrary position when can realize drawing outside spiral 5, and after spiral 5 pulls, then when pulling forward, spiral 5 is withdrawn in wire spool 4, only leaves hand draw ring 21 outside shell 1.
Wire spool 4 drives the first gear 22 to rotate by rotating shaft 2 while rotating along take-up direction, then drives the second gear 23 to rotate, tooth bar 24 is moved down.Tooth bar 24, while decline, can drive hollow outer bar 25 decline together and be recovered in shell 1, and then in driving successively, bar 29, dwang 30 and traction rope sling 31 slowly decline, and strength vertebra traction session terminates.
This utility model is also provided with a placing trough on shell 1, when not using this utility model, dwang 30 is rotated to parallel with interior bar 29, then interior bar 29 being taken in hollow outer bar 25 and while making hollow outer bar 25 be recovered in shell 1, the traction rope sling 31 of dwang 30 and end thereof also takes in placing trough in the lump, and whole outside of deivce so can be made to present the shape of a shell.
Principle and practice, by rational structural design, have been carried out effective combination by this utility model dexterously, thus provide a kind of traction apparatus for cervical vertebrae of novel, simple, simple operation, can carry out for each member in family.And, this utility model is after dispatching from the factory or using, expansion link mechanism wherein and traction rope sling can be completely retracted in shell, it is made to be exactly a common shell on the whole, and its thickness only has about 8cm, therefore, this utility model also has the advantage of compact, easy to carry, profile fashion.
In sum, compared with prior art, technological progress is comparatively obvious, and it has substantial feature and progress for this utility model.
Above-described embodiment is only preferred embodiment of the present utility model; it is not the restriction to this utility model protection domain; in every case design principle of the present utility model being adopted, and the change carried out non-creativeness work on this basis and make, all should belong within protection domain of the present utility model.
Claims (8)
1. a domestic traction apparatus for cervical vertebrae, it is characterized in that: comprise the shell (1) for being placed on the chair back, all be arranged on the coiling apparatus in this shell (1) and rack and pinion drive mechanism, be connected with rack and pinion drive mechanism and the expansion link mechanism of extended housing exterior, be arranged on the dwang (30) of this expansion link mechanism end, and be arranged on the traction rope sling (31) of this dwang (30) above, for being inserted in completely by human body head; Described coiling apparatus is connected with rack and pinion drive mechanism by rotating shaft (2).
2. a kind of domestic traction apparatus for cervical vertebrae according to claim 1, it is characterized in that: described coiling apparatus comprises the housing (3) be made up of left shell and right shell body, to be arranged in this housing (3) and the wire spool (4) be connected with rotating shaft (2) one end, be arranged on the position-limit mechanism on this wire spool (4) and the line box (6) with opening, be wrapped in the spiral (5) on wire spool (4), be arranged on this spiral (5) one end, for spiral is pulled out so that the manual backup driving wire spool to rotate, be arranged on the locating rod (19) in housing (3), to place in online box (6) and online box opening part is fixed in one end, the wind spring (7) that the other end is connected with wire spool (4), and be arranged on housing (3) inwall, and the lockable mechanism realizing wire spool and locate is coordinated with position-limit mechanism, described spiral (5) one end is walked around locating rod (19) and is changed pull-out direction.
3. a kind of domestic traction apparatus for cervical vertebrae according to claim 2, it is characterized in that: described position-limit mechanism comprises and is movably arranged on wire spool (4) and goes up and the ratchet (10) being respectively equipped with projection (8) and fixture block (9), and is arranged on the locating piece (11) on wire spool (4); Described locating piece (11) is provided with all for snapping in the first draw-in groove (12) and second draw-in groove (13) of projection (8).
4. a kind of domestic traction apparatus for cervical vertebrae according to claim 3, is characterized in that: described lockable mechanism is at least three, and around being distributed on housing (3) inwall; Each lockable mechanism includes fixed block (14), be arranged on this fixed block (14), for snapping in the 3rd draw-in groove (15) of fixture block (9), and be opened in the gathering sill (18) of fixed block (14) above, for making fixture block skid off fixed block from the 3rd draw-in groove.
5. a kind of domestic traction apparatus for cervical vertebrae according to claim 4, is characterized in that: described manual backup comprises the contiguous block (20) being arranged on spiral (5) one end, and is arranged on the hand draw ring (21) on this contiguous block (20).
6. a kind of domestic traction apparatus for cervical vertebrae according to claim 2 ~ 5 any one, it is characterized in that: described rack and pinion drive mechanism comprises the first gear (22) be fixed on rotating shaft (2) other end, engage with this first gear (22) and the two gear ratio be 1: 3 the second gear (23), and the tooth bar (24) engaged with this second gear (23); Described expansion link mechanism is fixed on this tooth bar (24) top.
7. a kind of domestic traction apparatus for cervical vertebrae according to claim 6, is characterized in that: described expansion link mechanism comprises the interior bar (29) be connected with dwang (30), and elastic mechanism and be fixed on the hollow outer bar (25) at tooth bar (24) top; Described interior bar (29) to be connected with hollow outer bar (25) by elastic mechanism and elastic mechanism can control the built-in length of interior bar (29) in hollow outer bar (25).
8. a kind of domestic traction apparatus for cervical vertebrae according to claim 7, it is characterized in that: described elastic mechanism comprises and to be threaded with hollow outer bar (25) and inside is provided with the bar cover (26) of circular cone (27), and be fixed on hollow outer bar (25) and go up and be positioned at the inner rubber ring (28) clamping bar when bar cover screwing, unclamp bar when unscrewing of bar cover (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008467.0U CN204379507U (en) | 2015-01-07 | 2015-01-07 | A kind of domestic traction apparatus for cervical vertebrae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008467.0U CN204379507U (en) | 2015-01-07 | 2015-01-07 | A kind of domestic traction apparatus for cervical vertebrae |
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| Publication Number | Publication Date |
|---|---|
| CN204379507U true CN204379507U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008467.0U Active CN204379507U (en) | 2015-01-07 | 2015-01-07 | A kind of domestic traction apparatus for cervical vertebrae |
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| CN (1) | CN204379507U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726069A (en) * | 2017-01-21 | 2017-05-31 | 孙小小 | Portable neck draws back cushion |
| ITUB20160709A1 (en) * | 2016-02-12 | 2017-08-12 | Walter Borgia | DEVICE FOR LOMBAR DECOMPRESSION |
| CN112932760A (en) * | 2021-02-01 | 2021-06-11 | 山东威高医疗科技有限公司 | Traction device capable of prolonging pelvis of lower limb and used with operating table |
| CN112957165A (en) * | 2021-02-04 | 2021-06-15 | 河北医科大学第三医院 | Adjustable bone traction fixing frame |
| CN112972094A (en) * | 2021-02-04 | 2021-06-18 | 河北医科大学第三医院 | Bone traction instrument with convenient angle adjustment |
-
2015
- 2015-01-07 CN CN201520008467.0U patent/CN204379507U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20160709A1 (en) * | 2016-02-12 | 2017-08-12 | Walter Borgia | DEVICE FOR LOMBAR DECOMPRESSION |
| WO2017137963A1 (en) * | 2016-02-12 | 2017-08-17 | Rispoli, Franco | Device for lumbar decompression |
| CN106726069A (en) * | 2017-01-21 | 2017-05-31 | 孙小小 | Portable neck draws back cushion |
| CN112932760A (en) * | 2021-02-01 | 2021-06-11 | 山东威高医疗科技有限公司 | Traction device capable of prolonging pelvis of lower limb and used with operating table |
| CN112932760B (en) * | 2021-02-01 | 2023-01-24 | 山东威高医疗科技有限公司 | Traction device capable of prolonging pelvis of lower limb and used with operating table |
| CN112957165A (en) * | 2021-02-04 | 2021-06-15 | 河北医科大学第三医院 | Adjustable bone traction fixing frame |
| CN112972094A (en) * | 2021-02-04 | 2021-06-18 | 河北医科大学第三医院 | Bone traction instrument with convenient angle adjustment |
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