CN108938071A - A kind of bone cement injection device - Google Patents

A kind of bone cement injection device Download PDF

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Publication number
CN108938071A
CN108938071A CN201810579188.8A CN201810579188A CN108938071A CN 108938071 A CN108938071 A CN 108938071A CN 201810579188 A CN201810579188 A CN 201810579188A CN 108938071 A CN108938071 A CN 108938071A
Authority
CN
China
Prior art keywords
mandrel
conduit
bone cement
base portion
support backing
Prior art date
Application number
CN201810579188.8A
Other languages
Chinese (zh)
Inventor
刘灿霞
刘慧�
Original Assignee
佛山市长郡科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 佛山市长郡科技有限公司 filed Critical 佛山市长郡科技有限公司
Priority to CN201810579188.8A priority Critical patent/CN108938071A/en
Publication of CN108938071A publication Critical patent/CN108938071A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802Equipment for handling bone cement or other fluid fillers
    • A61B17/8805Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8825Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details

Abstract

The invention discloses it is a kind of suitable for certain consistency bone cement carry out weight feed bone cement injection, comprising: the base portion of the entrance with the bone cement and separated with base portion and have the bone cement outlet injection needle;And the conduit of an elastically deformable, the tube at one end and entrance fluid communication and the other end and the communication;Live spindle at least one burr, one end of the mandrel is rotationally attached to the base portion, and the other end of the mandrel is rotationally attached to the injection needle;Conduit is also equipped with a support backing so that at least part for one section of conduit being located between the mandrel and the support backing is contacted with mandrel extruding;The drive shaft being connected with mandrel, for driving the rotation of the mandrel.The bone cement that the present invention can be contained in the conduit by controlling the screw driving of the mandrel is accurately injected.

Description

A kind of bone cement injection device

Technical field

It is the present invention relates to field of medical device, in particular to a kind of suitable for certain consistency pasty consistency in other words The bone cement injection device of bone cement progress weight feed.

Background technique

In clinical injection bone cement, how to carry out quantitative injection supply is that a comparison is difficult to the field controlled, past Toward being controlled by the long-term training of doctor, once in this way doctor make a fault will lead to injection amount it is inaccurate. And the disclosure of this field also not similar device or prior art.Especially in the accurate field of the quantitative comparison of bone cement The rarely offer of similar technological document.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the existing technology and deficiency, provides a kind of be suitable for pasty consistency Bone cement carry out weight feed bone cement injection device, which is characterized in that described device includes: with the bone cement The hand-holdable base portion of entrance and separated with base portion and with the bone cement outlet injection needle;

And the conduit of an elastically deformable, the tube at one end and entrance fluid communication and the other end and institute State communication;The base portion is also connected with a driving means for bone cement push;

And the live spindle at least one screw for being used to drive the bone cement being contained in the conduit, One end of the mandrel is rotationally attached to the base portion, and the other end of the mandrel is rotationally attached to the injection Needle;

The conduit is also equipped with a support backing, the support backing to be located at the mandrel and the support backing it Between at least part and the mandrel extruding of one section of conduit contact;

And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, to pass through the heart The bone cement for the pasty consistency that axial screw screw drive is contained in the conduit pours into the outlet.

Further, wherein the support backing includes the shell for the conduit, so that on the support backing The conduit be supported so that screw and the tubular conduit extruding of mandrel contact.

Further, wherein the conduit and the support backing are integrated in the same component.

Further, wherein the conduit and the support backing are independent components.

Further, wherein the support backing is made of the material of elastically deformable.

It further, further include the shell for being attached to the base portion and/or the injection needle.

Further, at least one of the base portion, the injection needle constitute the part of the shell.

Further, the shell includes one or more screw for running through the shell, and the head of the screw is from outer The outside of shell is reachable, and end reaches the support backing.

Further, wherein the drive shaft be flexible or rigidity, be used for actuator motor and the mandrel Between drive connection with allow the manual orientation of described device or do not change direction injection.

The advantages of the technical program, is as follows.

Squeeze by the screw thread of the mandrel of screw type provide quantitative paste-like bone cement greatly improve it is quantitative Accuracy.

Specific embodiment

Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.

Embodiment one.

A kind of bone cement injection device, which is characterized in that described device includes: the base portion of the entrance with the bone cement And the injection needle of the outlet of the bone cement is separated and had with base portion;It further includes being attached to the base portion and the injection The shell of needle.Or at least one directly by the base portion, the injection needle constitutes the part of the shell.Here base portion It can be set according to the occasion of specific implementation weight feed with the shell shape of injection needle, such as by base portion and injection needle Shell structure is handle shape.The base portion is also connected with a driving means for bone cement push, and driving means can be It is manual or electronic, such as it is configured to syringe, it is sent by hand push so that bone cement enters the conduit;

It also has the conduit of an elastically deformable, the tube at one end and entrance fluid communication and the other end With the communication;This conduit can be the conduit of plastics or general macromolecule material, can be squeezed buckling Shape makes the paste-like bone cement wherein passed through advance to gush out from injection needle.

And the live spindle at least one screw for being used to drive the bone cement being contained in the conduit, One end of the mandrel is rotationally attached to the base portion, and the part enclosure of mandrel fixed can be connected on base portion here So that it is mounted, mandrel belongs to common connection firmware, and which is not described herein again for specific mounting means, and the mandrel The other end be rotatably attached or fixed be attached to the injection needle;The supply that the setting of screw can according to need Precision changes the size of its outer diameter, such as uses lesser major diameter of thread when needing bigger precision, so that often The bone cement that secondary rotary squeezing goes out is less.

The conduit is also equipped with a support backing, the support backing to be located at the mandrel and the support backing it Between at least part and the mandrel extruding of one section of conduit contact;

And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, which can be set It sets on base portion, so that the bone cement for the pasty consistency being contained in the conduit by the screw driving of the mandrel gushes To the outlet.Drive shaft can be by connecting the stepper motor being arranged in inside base portion come so that the flow gushed out every time can Control, the amount for the bone cement gushed out is controlled by programming.

Further, wherein the support backing includes the shell for the conduit, so that on the support backing The conduit be supported so that screw and the tubular conduit extruding of mandrel contact.And in the present embodiment wherein The mandrel has the uncontinuous spiral line for discontinuously driving the bone cement.Alternatively, the mandrel has band There is the screw of bending part.Here backing can have the screw thread substantially cooperated with the screw, so that Two sides carry out corresponding extruding simultaneously.

Further, wherein the conduit and the support backing are integrated in the same component.Or it wherein described leads Pipe and the support backing are independent components.And wherein the support backing by the material of elastically deformable be made for example with Conduit uses the same or similar material.

Change its shape with specific reference to application scenarios.The shell includes one or more spiral shells for running through the shell The head of nail, the screw is reachable from the outside of shell, and end reaches the support backing.In this way can by screw come The compressing dynamics for adjusting backing needs to carry out screw operation especially after present apparatus access times are more to continue it and squeeze The degree of press contacts.

In this example, wherein the drive shaft is flexible, it is used for the driving between actuator motor and the mandrel Connect the manual orientation to allow described device.In this way when supply paste-like bone cement enters complicated region, hand can be passed through Base portion and injection needle are held to change the direction of output to carry out injection operation to the part performed the operation.

Embodiment two.

For this example continuing with a kind of bone cement injection device, described device includes: entering with the bone cement Mouthful base portion and separated with base portion and with the bone cement outlet injection needle;Here the shape of base portion can basis The occasion of specific implementation weight feed is set.The base portion is also connected with a driving means for bone cement push, pushes away It can be manual or electronic for sending device, such as be configured to syringe, be sent by hand push so that bone cement enters the conduit;Its Also with the conduit of an elastically deformable, the tube at one end and entrance fluid communication and the other end and the outlet It is in fluid communication;This conduit can be the conduit of plastics or general macromolecule material, can be deformed so that wherein By paste-like bone cement advance to gush out from injection needle.

And the live spindle at least one screw for being used to drive the bone cement being contained in the conduit, One end of the mandrel is rotationally attached to the base portion, and the other end of the mandrel is rotationally attached to the injection Needle;The supply precision that the setting of screw can according to need changes the size of its outer diameter, such as is needing bigger precision When use lesser major diameter of thread so that every time rotary squeezing go out bone cement it is less.

The conduit is also equipped with a support backing, the support backing to be located at the mandrel and the support backing it Between at least part and the mandrel extruding of one section of conduit contact;

And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, to pass through the heart The bone cement for the pasty consistency that axial screw screw drive is contained in the conduit pours into the outlet.Drive shaft can pass through Connection stepper motor to control the amount for the bone cement gushed out by programming so that the flow gushed out every time is controllable.

Wherein the support backing includes the shell for the conduit, so that the conduit on the support backing It is supported so that the screw of mandrel is contacted with tubular conduit extruding.And wherein the mandrel has in the present embodiment There is the uncontinuous spiral line for discontinuously driving the bone cement.Alternatively, the mandrel, which has, has bending part Screw.Here backing can have the screw thread substantially cooperated with the screw so that two sides simultaneously into The corresponding extruding of row.

Wherein the conduit and the support backing are integrated in the same component.And wherein the support backing is by can The material of flexible deformation is made for example with conduit using the same or similar material.

It further includes the shell for being attached to the base portion and the injection needle.Or directly by the base portion, the injection At least one of needle constitutes the part of the shell.Change its shape with specific reference to application scenarios.The shell includes one Or multiple screws through the shell, the head of the screw is reachable from the outside of shell, and end reaches the support Backing.The compressing dynamics that backing can be adjusted by screw in this way needs especially after present apparatus access times are more Screw operation is carried out to continue its degree for squeezing contact.

In the present embodiment, the drive shaft is rigid, and is led in this way by motor as actuator and the driving Axis connection is to allow for described device to be mounted on machine.Although drive shaft deflecting cannot be made in this way, it is suitable for orienting The operation of the occasion of supply, because it is extra and unfavorable that drive shaft, which is flexible words, during operation if orienting injection In operation.

Embodiment three.

A kind of bone cement injection device of the present embodiment, described device include: the base portion of the entrance with the bone cement And the injection needle of the outlet of the bone cement is separated and had with base portion;Here the shape of base portion can be according to specific implementation The occasion of weight feed is set.It also has the conduit of an elastically deformable, the tube at one end and the entrance stream Body connection and the other end and the communication;This conduit can be leading for plastics or general macromolecule material Pipe can be deformed so that the paste-like bone cement wherein passed through advances to gush out from injection needle.

And the live spindle at least one screw for being used to drive the bone cement being contained in the conduit, One end of the mandrel is rotationally attached to the base portion, and the other end of the mandrel is rotationally attached to the injection Needle;The supply precision that the setting of screw can according to need changes the size of its outer diameter, such as is needing bigger precision When use lesser major diameter of thread so that every time rotary squeezing go out bone cement it is less.

The conduit is also equipped with a support backing, the support backing to be located at the mandrel and the support backing it Between at least part and the mandrel extruding of one section of conduit contact;

And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, to pass through the heart The bone cement for the pasty consistency that axial screw screw drive is contained in the conduit pours into the outlet.Drive shaft can pass through Connection stepper motor to control the amount for the bone cement gushed out by programming so that the flow gushed out every time is controllable.

Wherein the support backing includes the shell for the conduit, so that the conduit on the support backing It is supported so that the screw of mandrel is contacted with tubular conduit extruding.And wherein the mandrel has in the present embodiment There is the uncontinuous spiral line for discontinuously driving the bone cement.Alternatively, the mandrel, which has, has bending part Screw.Here backing can have the screw thread substantially cooperated with the screw so that two sides simultaneously into The corresponding extruding of row.

Wherein the conduit and the support backing are integrated in the same component.Or the wherein conduit and the branch Supportting backing is independent component.And wherein the support backing is made of the material of elastically deformable for example with conduit using phase Same or similar material.

It further includes the shell for being attached to the base portion and the injection needle.Or directly by the base portion, the injection At least one of needle constitutes the part of the shell.Change its shape with specific reference to application scenarios.In this example, one is also set up A machinery being located on the shell for keeping the support backing, electromagnetism or air-actuated jaw.Especially electromagnetism can be passed through in this way Device for example pressed especially after present apparatus access times are more by calutron to adjust the compressing dynamics of backing The detection of force snesor changes the pressure of calutron to continue its degree for squeezing contact, to ensure dress to feed back calutron The accuracy set.

In the present embodiment, the drive shaft is alternatively, can to switch drive shaft between flexible or rigidity, To cope with different occasions, specific occasion has described in front.

Example IV.

This example continues to provide a kind of bone cement injection device, comprising: with the bone cement entrance base portion and with Base portion separates and the injection needle of the outlet with the bone cement;Here the shape of base portion can be supplied according to specific implementation is quantitative The occasion given is set.It also has the conduit of an elastically deformable, and the tube at one end and the entrance are in fluid communication And the other end and the communication;This conduit can be the conduit of plastics or general macromolecule material, can To be deformed so that the paste-like bone cement wherein passed through advances to gush out from injection needle.

And the live spindle at least one protrusion for being used to drive the bone cement being contained in the conduit, it is described One end of mandrel is rotationally attached to the base portion, and the part enclosure of mandrel fixed can be connected on base portion and make here It is mounted, and mandrel belongs to common connection firmware, and which is not described herein again for specific mounting means, and the mandrel is another One end is rotatably attached or that fixes is attached to the injection needle;The supply precision that can according to need of setting of protrusion changes Become the size of its outer diameter, such as using lesser raised outer diameter when needing bigger precision, so that rotation is squeezed every time The bone cement of extrusion is less.Here raised shape can be screw thread be also possible to for example multiple protrusions of other shapes particle or One circle of protrusion.

The conduit is also equipped with a support backing, the support backing to be located at the mandrel and the support backing it Between at least part and the mandrel extruding of one section of conduit contact;

And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, which can be set It sets on base portion, so that the bone cement for the pasty consistency being contained in the conduit by the protrusion driving of the mandrel pours into institute State outlet.Drive shaft can be arranged in stepper motor inside base portion and so that the flow gushed out every time is controllable, lead to by connecting Programming is crossed to control the amount for the bone cement gushed out.

Wherein the support backing includes the shell for the conduit, so that the conduit on the support backing It is supported so that the protrusion of mandrel is contacted with tubular conduit extruding.Here backing can have substantially matches with the protrusion The recessed or protrusion closed, so that two sides carry out corresponding extruding simultaneously.

Wherein the conduit and the support backing are integrated in the same component.Or the wherein conduit and the branch Supportting backing is independent component.And wherein the support backing is made of the material of elastically deformable for example with conduit using phase Same or similar material.

It further includes the shell for being attached to the base portion and the injection needle.Or directly by the base portion, the injection At least one of needle constitutes the part of the shell.Change its shape with specific reference to application scenarios.The shell includes one Or multiple screws through the shell, the head of the screw is reachable from the outside of shell, and end reaches the support Backing.The compressing dynamics that backing can be adjusted by screw in this way needs especially after present apparatus access times are more Screw operation is carried out to continue its degree for squeezing contact.

In this example, wherein the drive shaft is flexible or rigidity, be used for by actuator motor and the mandrel it Between drive connection to allow the manual orientation of described device.

The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included within the scope of the present invention.

Claims (10)

1. a kind of bone cement injection device, which is characterized in that described device includes: the hand-holdable of the entrance with the bone cement Base portion and separated with the base portion and with the bone cement outlet injection needle;
The base portion is also connected with a driving means for bone cement push;
And the conduit of an elastically deformable, the tube at one end and the entrance be in fluid communication and the other end and it is described go out Mouth is in fluid communication;
And the live spindle at least one screw for being used to drive the bone cement being contained in the conduit, it is described One end of mandrel is rotationally attached to the base portion, and the other end of the mandrel is rotationally attached to the injection needle;Institute It states conduit and is also equipped with a support backing, the support backing makes one section be located between the mandrel and the support backing to lead At least part of pipe is contacted with mandrel extruding;
And a drive shaft being connected with mandrel, for driving the rotation of the mandrel, to pass through the mandrel The bone cement that screw driving is contained in the conduit pours into the outlet.
2. the apparatus according to claim 1, which is characterized in that wherein the support backing includes the shell for the conduit Body, so that the conduit on the support backing is supported so that the screw of mandrel connects with tubular conduit extruding Touching.
3. the apparatus of claim 2, which is characterized in that wherein the conduit and the support backing are integrated in same In a component.
4. the apparatus of claim 2, which is characterized in that wherein the conduit and the support backing are independent portions Part.
5. device according to any one of the preceding claims, which is characterized in that wherein the support backing by can elasticity The material of deformation is made.
6. device according to any one of the preceding claims, which is characterized in that it further includes being attached to the base portion Shell.
7. device according to any one of the preceding claims, which is characterized in that the base portion constitutes the portion of the shell Point.
8. device described in one of according to claim 6 or 7, which is characterized in that the shell includes one or more through institute The screw of shell is stated, the head of the screw is reachable from the outside of shell, and end reaches the support backing.
9. device according to any one of the preceding claims, which is characterized in that the drive shaft is flexible, and is used for Drive connection between actuator motor and the mandrel is allowed to the manual orientation of described device.
10. device according to any one of the preceding claims, which is characterized in that the driving means is electronic or hand Dynamic device.
CN201810579188.8A 2018-06-07 2018-06-07 A kind of bone cement injection device CN108938071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810579188.8A CN108938071A (en) 2018-06-07 2018-06-07 A kind of bone cement injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810579188.8A CN108938071A (en) 2018-06-07 2018-06-07 A kind of bone cement injection device

Publications (1)

Publication Number Publication Date
CN108938071A true CN108938071A (en) 2018-12-07

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CN201810579188.8A CN108938071A (en) 2018-06-07 2018-06-07 A kind of bone cement injection device

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408275Y (en) * 1999-12-16 2000-11-29 中国建筑科学研究院建筑机械化研究分院 Single screw pump
CN2572055Y (en) * 2002-09-19 2003-09-10 关勇 Inflated single screw pump
CN2703148Y (en) * 2004-04-22 2005-06-01 潘立明 Conical single-screw pump
CN101435531A (en) * 2008-09-16 2009-05-20 魏振国 Portable bidirectional electric grease gun
CN101985941A (en) * 2009-07-23 2011-03-16 Pcm公司 Screw pump and an associated pump device
CN202811350U (en) * 2012-09-04 2013-03-20 重庆明珠机电有限公司 Adjustable equal-wall-thickness rubber stator
CN105216333A (en) * 2015-11-16 2016-01-06 陈志敏 A kind of three-dimensional printer liquid extruding system and its implementation
US20160081732A1 (en) * 2006-04-07 2016-03-24 Gamal Baroud Integrated cement delivery system for bone augmentation procedures and methods
CN105982729A (en) * 2015-03-23 2016-10-05 台湾微创医疗器材股份有限公司 Injection device for biological tissue repair
CN205744421U (en) * 2016-06-16 2016-11-30 黄山工业泵制造有限公司 A kind of adjustable single screw pump stator
CN106793895A (en) * 2014-08-28 2017-05-31 艺康美国股份有限公司 The chemical products distribution for driving fluid flow rate is not relied on

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408275Y (en) * 1999-12-16 2000-11-29 中国建筑科学研究院建筑机械化研究分院 Single screw pump
CN2572055Y (en) * 2002-09-19 2003-09-10 关勇 Inflated single screw pump
CN2703148Y (en) * 2004-04-22 2005-06-01 潘立明 Conical single-screw pump
US20160081732A1 (en) * 2006-04-07 2016-03-24 Gamal Baroud Integrated cement delivery system for bone augmentation procedures and methods
CN101435531A (en) * 2008-09-16 2009-05-20 魏振国 Portable bidirectional electric grease gun
CN101985941A (en) * 2009-07-23 2011-03-16 Pcm公司 Screw pump and an associated pump device
CN202811350U (en) * 2012-09-04 2013-03-20 重庆明珠机电有限公司 Adjustable equal-wall-thickness rubber stator
CN106793895A (en) * 2014-08-28 2017-05-31 艺康美国股份有限公司 The chemical products distribution for driving fluid flow rate is not relied on
CN105982729A (en) * 2015-03-23 2016-10-05 台湾微创医疗器材股份有限公司 Injection device for biological tissue repair
CN105216333A (en) * 2015-11-16 2016-01-06 陈志敏 A kind of three-dimensional printer liquid extruding system and its implementation
CN205744421U (en) * 2016-06-16 2016-11-30 黄山工业泵制造有限公司 A kind of adjustable single screw pump stator

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