CN204744383U - Be used for resin class bone cement and calcium phosphate bone cement to unite dabbling equipment - Google Patents
Be used for resin class bone cement and calcium phosphate bone cement to unite dabbling equipment Download PDFInfo
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- CN204744383U CN204744383U CN201520391721.XU CN201520391721U CN204744383U CN 204744383 U CN204744383 U CN 204744383U CN 201520391721 U CN201520391721 U CN 201520391721U CN 204744383 U CN204744383 U CN 204744383U
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Abstract
The utility model provides a be used for resin class bone cement and calcium phosphate bone cement to unite dabbling equipment fills resin class bone cement and calcium phosphate bone cement through the coaxial mode of filling. The utility model discloses equipment, include: the base member, first sleeve piston assembly, including first sleeve and first piston, first sleeve and base member can be dismantled and be connected as an organic wholely, and the slip of first sleeve inner wall can be followed to first piston, second sleeve piston assembly, including second sleeve and second piston, second sleeve and base member can be dismantled and be connected as an organic wholely, and the slip of second sleeve inner wall can be followed to the second piston, first sleeve and second sleeve are connected simultaneously to connecting pipe, one end, and the other end is equipped with the female interface in rule with the public interface looks adaptation in rule of pjncture needle, and advancing mechanism, one end is connected with the base member, and the other end is connected with first piston and second piston simultaneously.
Description
Technical field
This utility model relates to a kind of equipment for resinae bone cement and calcium phosphate bone cement combined injection, is used for the treatment of Osteoporotic Vertebral Compression Fractures, belongs to medical instruments field.
Background technology
After the reported first percutaneous puncture injection bone cement treatment cervical vertebra hemangioma such as French Galibert in 1987 succeed, percutaneous vertbroplasty (PercutaneousVertebroplasty, PVP), Percutaneous kyplasty (Percutaneouskyphoplasty, PKP) with its curative effect certainly, the feature of little, the few intercurrent disease of wound, now become the Main Means of clinical treatment compression fracture of vertabral body.The bone cement poured in art is resinae bone cement---polymethyl acrylate bone cement, namely utilizes bonding and the filling effect of such bone cement, fracture site is fixed and the height of lifting compressed vertebral, recovers spinal column normal sequence and mechanical property.But discharge a large amount of heat of polymerizations after the monomer toxicity of such bone cement self and polymerization, injury effect is existed to osteocyte, and resinae bone cement non-degradable, inactive and bone inductive effect, with the poor compatibility of bone.Increase the weight of along with osteoporotic, Intrapyramidal bone cement block and surrounding bone tissue contact surface reduce, crack is organized to strengthen between interface, bone cement block is under the effect of pressure and shearing force, the distance of micromotion increases gradually, produces and loosens, form " hollow vertebra ", " eggshell vertebra " in vertebral body, cause collapse of vertebra, cause vertebral body refracture.Moreover resinae bone cement exists the characteristic that hardness is large, rigidity is strong, inject after hindering vertebra, hinder vertebra hardness and increase, easily produce spring effect with contiguous vertebral body, cause the stressed increase of contiguous vertebral body, occur contiguous vertebral body secondary fracture.
The characteristics such as calcium phosphate bone cement has solidification voluntarily, good biocompatibility, can progressively degrade, have good bone conductibility, can be replaced by new bone gradually in vertebral body, recover the bone amount of vertebral body.But there is solid-liquid separation in calcium phosphate bone cement, chance water is defeated and dispersed, intensity is low, be not suitable for the shortcomings such as load-bearing bone.At present, many research units and individual carry out multiple improvement or study on the modification to calcium phosphate bone cement, do not have larger scale clinical application report yet.
For improving and solve drawback and the defect of operation existence at present, LiebermanIH(" SpineJ ", 6 phases in 2005), Sun Yu " Chinese B&J damage magazine ", 11 phases in 2007) etc. have research adopt polymer thin-film material (as silica gel thin film etc.), after hindering in vertebra application dilator expansion in advance, again thin film sacculus is implanted reset vertebral body inner, thin-film material can form a good segmentation barrier between the calcium salt bone cement of perfusion and surrounding tissue, effectively prevent the defeated and dispersed of bone cement and seepage, zoopery and clinical experiment result of the test show to have some improvement.But silica gel material is not degraded, calcium salt bone cement cannot contact the characteristic that osseous tissue plays short osteogenesis, can not avoid hindering the generation of levying in vertebra crack.Liu Xunwei etc. (" Chinese Tissue Engineering Study phase ", 12 phases in 2014) the micropore sacculus that adopts degradable macromolecule material to prepare, and fixed closed device and the conveyer device thereof of the netted sacculus of degradable macromolecule is disclosed at Chinese utility model patent 102973313B, osseous tissue is made to extend in calcium phosphate bone cement hole by the degraded gradually of balloon membrane after implanting vertebral body, gradually for osseous tissue substitutes in bone cement degradation process, but be not applied to clinical at present.Liu Shijun etc. (" modern preventive medicine ", 7 phases in 2011) polymethyl acrylate bone cement mixed with calcium phosphate bone cement and implants vertebral body, Chinese utility model patent application 102688522A discloses a kind of calcium sulfate, hydroxyapatite, the method that calcium phosphate and polymethyl methacrylate (resinae bone cement) mix by a certain percentage, after calcium salt bone cement mixes with resinae bone cement, because resinae bone cement itself does not have degradability, remove a small amount of calcium salt bone cement to contact with osseous tissue, other major parts are resinae bone cement parcel, calcium ion can not be separated out, the effect that calcium phosphate bone cement urgees osteogenesis cannot be given full play to, little to the preventive effect effect of vertebral body refracture.
Utility model content
In order to overcome above the deficiencies in the prior art, this utility model object is to have carried a kind of equipment for resinae bone cement and calcium phosphate bone cement combined injection, by coaxial reperfusion mode perfusion resin class bone cement and calcium phosphate bone cement.
The technical solution adopted in the utility model is:
For an equipment for resinae bone cement and calcium phosphate bone cement combined injection, comprising: matrix; First sleeve piston assembly, comprises the first sleeve and first piston, and the first sleeve and matrix removably connect and be integrated, and first piston can slide along the first sleeve lining; Second sleeve piston assembly, comprise the second sleeve and the second piston, the second sleeve and matrix removably connect and are integrated, and the second piston can slide along the second sleeve lining; Connection tube, one end connects the first sleeve and the second sleeve simultaneously, and the other end is provided with Rule maternal interface suitable with Rule public access mouth of puncture needle; And propulsive mechanism, one end is connected with matrix, and the other end is connected with first piston and the second piston simultaneously.
The above-mentioned equipment preferred version for resinae bone cement and calcium phosphate bone cement combined injection, first sleeve and the second sleeve are equipped with bone cement outlet, and bone cement outlet is provided with the fittings body be connected with connection tube, fittings body is bayonet joint or female Luer.
The above-mentioned equipment preferred version for resinae bone cement and calcium phosphate bone cement combined injection, propulsive mechanism comprises push rod, and push rod one end is provided with handle body, and the other end is connected with push pedal, and push pedal is connected with first piston and the second piston.
The above-mentioned equipment preferred version for resinae bone cement and calcium phosphate bone cement combined injection, matrix comprises pedestal and base, and base is provided with the shoulder hole that the first screwed hole and the second screwed hole are formed; Pedestal outer surface is provided with the external screw thread coordinated with the second screwed hole, and base interior has two threaded mounting holes, an access opening and two perforation, perforation communicating passage hole and threaded mounting hole; Push rod is provided with the screw thread coordinated with the first screwed hole, base and pedestal are connected by external screw thread and the second screwed hole and are integrated, push rod to be coordinated with the first screwed hole by screw thread and is connected with base, piston is connected with push pedal through perforation, push pedal can be slided along access opening, first sleeve and the second sleeve outer surface are provided with the threaded body coordinated with threaded mounting hole, and the first sleeve and the second sleeve are connected as one by threaded engagement and pedestal.
The above-mentioned equipment preferred version for resinae bone cement and calcium phosphate bone cement combined injection, be provided with inner passway tube and outer tunnel pipe in connection tube, inner passway tube and outer tunnel pipe are communicated with the first sleeve and the second sleeve respectively.
The above-mentioned equipment preferred version for resinae bone cement and calcium phosphate bone cement combined injection, connection tube is Y-shaped structure or T-shaped structure.
Above-mentioned for either a program in the equipment preferred version of resinae bone cement and calcium phosphate bone cement combined injection, connection tube is that medical steel or rigid plastics are made.
Above-mentioned for either a program in the equipment preferred version of resinae bone cement and calcium phosphate bone cement combined injection, the first sleeve and the second sleeve diameter ratio are 3:1 ~ 1:1.
Utility model works principle: inner passway tube is resinae bone cement efferent tract, outer tunnel pipe is calcium phosphate bone cement efferent tract, when jointly pouring into, resinae bone cement is calcium phosphate bone cement parcel, after injecting vertebral body, by pressure effect, resinae bone cement can enter in bone trabecula gap through calcium phosphate bone cement parcel, make resinae bone cement and the mutual intercalation of bone trabecula, form microcosmic strand lock, ensure the firmness of early stage fractured vertebral body.And calcium phosphate bone cement is generally within outside resinae bone cement, contact with osseous tissue, play itself and the mutual fusion of autologous bone and the function of bone remoulding, and calcium ion is discharged in degradation process, ensure local calcium ion concentration, within the long term, block osteoporotic process, bone cement block can be kept for more time Intrapyramidal stable, thus fundamentally solve the loosening problem of resinae bone cement bone cement, meet the requirement that immediate postoperative is stablized and prevented vertebral body refracture at a specified future date.
After adopting said structure, provide a kind of device for casting being poured into calcium phosphate bone cement and resinae bone cement by the mode of coaxial perfusion mating vertebroplasty and balloon kyphoplasty use.Apply this device, make resinae bone cement outer wrap one deck calcium phosphate bone cement, then after vertebra perfusion in vivo, change resinae bone cement powder and calcium phoshate bone cement powder mixes the drawback causing calcium phosphate bone cement to separate out.
Accompanying drawing explanation
Fig. 1 is the fault structure schematic diagram of this utility model detailed description of the invention;
Fig. 2 is the fault structure schematic diagram of handle body of the present utility model and base;
Fig. 3 is the fault structure schematic diagram of pedestal of the present utility model;
Fig. 4 is the fault structure schematic diagram of the first sleeve of the present utility model or the second sleeve;
Fig. 5 is the fault structure schematic diagram of connection tube of the present utility model;
Fig. 6 is the fault structure schematic diagram of first piston of the present utility model or the second piston;
In figure: 1, base; 2, pedestal; 3, the first sleeve piston assembly; 4, connection tube; 5, the second sleeve piston assembly; 6, fittings body; 1.1, handle body; 1.2, push pedal; 1.3, the second screwed hole; 1.4, push rod; 1.5, the first screwed hole; 2.1, external screw thread; 2.2, threaded mounting hole; 2.3, access opening; 2.4, bore a hole; 3.1, the first sleeve; 3.2, first piston; 4.1, outer tunnel pipe; 4.2, inner passway tube; 4.3, Rule maternal interface; 5.1 second sleeves; 5.2, the second piston; 6.1, Rule male joint body; 6.2, Rule female joint body.
Detailed description of the invention
For clearly demonstrating feature of the present utility model, below by embodiment, and be described in further detail by reference to the accompanying drawings, but embodiment of the present utility model is not limited thereto.
For an equipment for resinae bone cement and calcium phosphate bone cement combined injection, comprise matrix, the first sleeve piston assembly, the second sleeve piston assembly 5, propulsive mechanism and connection tube 4.
Once each modular construction specifically below:
Matrix comprises pedestal 2 and base 1, and base 1 is provided with the shoulder hole of the first screwed hole 1.5 and the second screwed hole 1.3 formation; Pedestal 2 outer surface is provided with the external screw thread 2.1 coordinated with the second screwed hole 1.3, and base interior has two threaded mounting holes, 2.2, access opening 2.3 and two perforation 2.4, bore a hole 2.4 communicating passage holes 2.3 and threaded mounting hole 2.2.
First sleeve piston assembly 3 comprises the first sleeve 3.1 and first piston 3.2, and first piston 3.2 can slide along the first sleeve 3.1 inwall; Second sleeve piston assembly 5, comprises the second sleeve 5.1 and the second piston 5.2, second piston 5.2 can slide along the second sleeve 5.1 inwall; First sleeve 3.1 and the second sleeve 5.1 outer surface are provided with the threaded body coordinated with threaded mounting hole 2.2, and the first sleeve 3.1 and the second sleeve 5.1 are connected as one by threaded engagement and pedestal 2.
Connection tube 4, one end connects the first sleeve 3.1 and the second sleeve 5.1 simultaneously, and the other end is provided with Rule maternal interface 4.3 suitable with Rule public access mouth of puncture needle.
First sleeve 3.1 and the second sleeve 5.1 are equipped with bone cement outlet, and bone cement outlet is provided with the fittings body 6 be connected with connection tube 4, fittings body 6 is bayonet joint or female Luer, Rule female joint body 6.2 adopting female Luer to comprise to be arranged on Rule male joint body 6.1 on connection tube 4 in the present embodiment and be arranged on the first sleeve 3.1 and the second sleeve 5.1.
Propulsive mechanism, one end is connected with the base 1 of matrix, and the other end is connected with first piston 3.2 and the second piston 5.2 simultaneously.Propulsive mechanism comprises push rod 1.4, and push rod 1.4 one end is provided with handle body 1.1, and the other end is connected with push pedal 1.2, and push pedal 1.2 is connected with first piston 3.2 and the second piston 5.2.
Push rod is provided with the screw thread coordinated with the first screwed hole 1.5, base 1 and pedestal 2 are connected by external screw thread 2.1 and the second screwed hole 1.3 and are integrated, push rod to be coordinated with the first screwed hole 1.5 by screw thread and is connected with base, piston is connected with push pedal 1.2 through perforation 2.4, and push pedal 1.2 can be slided along access opening 2.3.
In the present embodiment, connection tube 4 is Y-shaped structure or T-shaped structure, and connection tube 4 is made for medical steel or rigid plastics, be provided with inner passway tube 4.2 and outer tunnel pipe 4.1 in connection tube 4, inner passway tube 4.2 and outer tunnel pipe 4.1 are communicated with the first sleeve 3.1 and the second sleeve 5.1 respectively.
In the present embodiment, the first sleeve 3.1 and the second sleeve 5.1 internal diameter ratio are 3:1 ~ 1:1, by two sleeve diameter ratio changes, can adjust the ratio of resinae bone cement and calcium phosphate bone cement.
During use, after fixing to base 1 and pedestal 2, screw off the first sleeve 3.1 and the second sleeve 5.1, withdraw from first piston 3.2 and the second piston 5.2, then the resinae bone cement be in harmonious proportion and calcium phosphate bone cement are injected into respectively in the first sleeve 3.1 and the second sleeve 5.1, push ahead after first piston 3.2 and the second piston 5.2 being inserted the first sleeve 3.1 and the second sleeve 5.1, discharge gas in the first sleeve 3.1 and the second sleeve 5.1.First sleeve 3.1 and the second sleeve 5.1 are fixed on the base 2, rotary handle 1.1, is combined push pedal 1.2 with first piston 3.2 and the second piston 5.2.First sleeve 3.1 is connected by female Luer with connection tube 4 inner passway tube 4.2 and connection tube 4 outer tunnel pipe 4.1 respectively with the second sleeve 5.1.Rotary handle 1.1, make bone cement stimulate the menstrual flow connection tube 4 head end flow out, after bone cement is wire drawing state, coaxial connection tube 4 Rule maternal interface 4.3 is connected with Rule public access mouth of puncture needle.Under X-ray monitors, rotary handle 1.1, drive is injected piston and is pushed ahead, and the mixing bone cement that the calcium phosphate bone cement that resinae bone cement is wrapped up is formed enters in vertebral body, after filling satisfaction, revolution rotary handle 1.1 liang circle, Rule maternal interface 4.3 of connection tube 4 is separated with puncture needle, introduces puncture needle core, the bone cement in puncture needle is injected in vertebral body, withdraw from puncture needle, complete operation.
Though adopt this utility model calcium phosphate bone cement to be wrapped up by resinae bone cement, but after bone cement is fed into vertebral body, owing to bearing certain injection pressure, part calcium phosphate bone cement enters in bone trabecula gap by resinae bone cement parcel, play the effect of instant bonding, reach the object of quick pain relief and fixing fracture.
The above is only in order to illustrate the technical solution of the utility model and unrestricted, and for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1., for an equipment for resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that, comprising:
Matrix;
First sleeve piston assembly, comprises the first sleeve and first piston, and the first sleeve and matrix removably connect and be integrated, and first piston can slide along the first sleeve lining;
Second sleeve piston assembly, comprise the second sleeve and the second piston, the second sleeve and matrix removably connect and are integrated, and the second piston can slide along the second sleeve lining;
Connection tube, one end connects the first sleeve and the second sleeve simultaneously, and the other end is provided with Rule maternal interface suitable with Rule public access mouth of puncture needle; With
Propulsive mechanism, one end is connected with matrix, and the other end is connected with first piston and the second piston simultaneously.
2. according to claim 1 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: the first sleeve and the second sleeve are equipped with bone cement outlet, and bone cement outlet is provided with the fittings body be connected with connection tube, fittings body is bayonet joint or female Luer.
3., according to claim 1 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: propulsive mechanism comprises push rod, push rod one end is provided with handle body, and the other end is connected with push pedal, and push pedal is connected with first piston and the second piston.
4. according to claim 3 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: matrix comprises pedestal and base, base is provided with the shoulder hole that the first screwed hole and the second screwed hole are formed; Pedestal outer surface is provided with the external screw thread coordinated with the second screwed hole, and base interior has two threaded mounting holes, an access opening and two perforation, perforation communicating passage hole and threaded mounting hole; Push rod is provided with the screw thread coordinated with the first screwed hole, base and pedestal are connected by external screw thread and the second screwed hole and are integrated, push rod to be coordinated with the first screwed hole by screw thread and is connected with base, piston is connected with push pedal through perforation, push pedal can be slided along access opening, first sleeve and the second sleeve outer surface are provided with the threaded body coordinated with threaded mounting hole, and the first sleeve and the second sleeve are connected as one by threaded engagement and pedestal.
5., according to claim 1 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: be provided with inner passway tube and outer tunnel pipe in connection tube, inner passway tube and outer tunnel pipe are communicated with the first sleeve and the second sleeve respectively.
6., according to claim 1 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: connection tube is Y-shaped structure or T-shaped structure.
7. according to any one of claim 1 to 6 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: connection tube is that medical steel or rigid plastics are made.
8. according to any one of claim 1 to 6 for the equipment of resinae bone cement and calcium phosphate bone cement combined injection, it is characterized in that: the first sleeve and the second sleeve diameter ratio are 3:1 ~ 1:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391721.XU CN204744383U (en) | 2015-06-09 | 2015-06-09 | Be used for resin class bone cement and calcium phosphate bone cement to unite dabbling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391721.XU CN204744383U (en) | 2015-06-09 | 2015-06-09 | Be used for resin class bone cement and calcium phosphate bone cement to unite dabbling equipment |
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| CN204744383U true CN204744383U (en) | 2015-11-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873264A (en) * | 2015-06-09 | 2015-09-02 | 刘训伟 | Resin type bone cement and calcium phosphate bone cement combined pouring equipment |
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2015
- 2015-06-09 CN CN201520391721.XU patent/CN204744383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873264A (en) * | 2015-06-09 | 2015-09-02 | 刘训伟 | Resin type bone cement and calcium phosphate bone cement combined pouring equipment |
| CN104873264B (en) * | 2015-06-09 | 2016-12-07 | 刘训伟 | For resinae bone cement and the equipment of calcium phosphate bone cement combined injection |
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