CN112790853B - Spinal bone cement injector with secondary injection mechanism - Google Patents
Spinal bone cement injector with secondary injection mechanism Download PDFInfo
- Publication number
- CN112790853B CN112790853B CN202011521299.7A CN202011521299A CN112790853B CN 112790853 B CN112790853 B CN 112790853B CN 202011521299 A CN202011521299 A CN 202011521299A CN 112790853 B CN112790853 B CN 112790853B
- Authority
- CN
- China
- Prior art keywords
- injection
- bone cement
- hole
- injector
- far end
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
Abstract
The invention relates to the technical field of spinal bones, and discloses a spinal bone cement injector with a secondary injection mechanism, which comprises an injection sleeve, the injection sleeve is detachably provided with an injection mechanism inside, the injection mechanism comprises a container and a pushing mechanism, used for pushing out the bone cement, the pushing mechanism is positioned in the container, the distal end of the injection sleeve is inserted with an injection catheter, used for guiding the bone cement pushed out of the injection mechanism into the bone of a patient, the far end of the injection catheter is fixedly connected with a scattering mechanism, for uniformly driving the bone cement into the bone of a patient, a secondary injection mechanism is movably arranged at the near end in the pushing mechanism, so that the bone cement liquid in the pushing mechanism is pushed out, therefore, the device can detect the concentration of the bone cement in the operation process, and prevent the bone cement from being solidified in the operation process to influence the operation.
Description
Technical Field
The invention relates to the technical field of vertebra, in particular to a spinal bone cement injector with a secondary injection mechanism.
Background
The adult spine is formed by 26 vertebrae connected by ligaments, joints and intervertebral discs. The upper end of the spine supports the skull, the lower hip bone, the middle rib and the back wall of the thorax, the abdominal cavity and the pelvic cavity. The spine has functions of supporting the trunk, protecting the internal organs, protecting the spinal cord, and performing exercise. A longitudinal spinal canal is formed inside the spine from top to bottom, and a spinal cord is arranged inside the longitudinal spinal canal.
In the process of growth, spine bones can be fractured by various accidents, particularly spine bones of old people are fragile and weak, when spine bones are crushed for operation, doctors can adapt to bone cement to bond the crushed bones frequently, so that the bones become firm again, but when the existing bone cement injector is actually used, the bone cement needs to be mixed in advance, the uncertainty of operation time easily causes that the mixed bone cement is solidified due to long placement time (the bone cement can be solidified after being mixed for fifteen minutes), the bone cement injector is damaged, the operation is influenced, and when the bone cement is injected, the bone cement flows to one side, so that the bone cement is unevenly distributed, and simultaneously, after the bone cement is injected, a cavity is formed in an injection head part after being pulled out, so that the cavity is easily formed among the bone cement, and the firmness of the bone cement is influenced, meanwhile, after the bone cement injector is pulled out, bone cement in the injector and a catheter cannot be cleaned and is solidified, so that instruments are damaged.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the spinal bone cement injector with the secondary injection mechanism, which has the advantages of preventing bone cement from being solidified during operation, preventing a cavity from being generated after the bone cement is injected, preventing the bone cement in the injector from being solidified after the bone cement is injected, and the like, and solves the problems that the bone cement is solidified during operation, the cavity is generated after the bone cement is injected, and the bone cement in the injector is solidified after the bone cement is injected.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a spinal bone cement injector with a secondary injection mechanism comprises an injection sleeve, wherein the injection sleeve is detachably provided with the injection mechanism inside, the injection mechanism comprises a container and a pushing mechanism, the container is used for pushing out bone cement, and the pushing mechanism is positioned inside the container; the injection sleeve is of a hollow cylindrical structure, the near end of the injection sleeve is open, and the far end of the injection sleeve is inserted with an injection catheter for guiding the bone cement pushed out from the injection mechanism into the bone of a patient; the far end of the injection catheter is fixedly connected with a scattering mechanism for uniformly driving bone cement into the bone of a patient; the far end in the injection sleeve is fixedly provided with a vibration mechanism for mixing bone cement in the injection mechanism, wherein the bone cement is formed by mixing and stirring dry powder and liquid; the side walls of the two sides of the injection mechanism are respectively and fixedly provided with a clamping mechanism for fixing the injection mechanism; the far end in the pushing mechanism is fixedly provided with a valve mechanism for controlling the closing and opening of an outflow opening of the bone cement liquid part in the pushing mechanism; the near end in the pushing mechanism is movably provided with a secondary injection mechanism, so that the bone cement liquid in the pushing mechanism is pushed out.
Preferably, the container comprises an injector, the injector is of a hollow cylindrical structure, the near end of the injector is open, the outer walls of the two sides of the injector are respectively provided with a clamping groove, the clamping grooves are rectangular grooves, the outer walls of the two sides of the injection sleeve are respectively provided with a clamping hole, the clamping holes are circular through holes, the inner side walls of the clamping holes are provided with threads, the clamping holes correspond to the clamping grooves in position, the clamping mechanism comprises a clamping column, the clamping column is of a cylindrical structure, a clamping rod is rotatably arranged in the clamping holes, the clamping rod is of a cylindrical structure, the side wall of the clamping rod is provided with threads matched with the clamping holes, the clamping holes are in threaded connection with the clamping rod, one end of the clamping column, far away from the injector, is fixedly connected with the clamping rod, one end of the clamping column, close to the injector, is abutted against the wall surface of the bottom of the clamping grooves, the one end fixed mounting that the syringe was kept away from to the supporting rod has the stopper, and the stopper is ring column structure, the stopper is located the outside of injection cover and laminates with the outer wall of injection cover.
Preferably, the inner side wall of the injector is provided with a rotating groove which is an annular groove, the inner wall surface of the rotating groove is provided with threads, a mud hole is arranged at the center of the far end of the injector, the mud hole is a circular through hole, a positioning pipe is fixedly connected on the inner wall of the mud hole, the positioning pipe is of a circular pipe structure, the positioning tube extends into the injector, the center of the far end of the injection sleeve is provided with an injection hole which is a circular through hole, the inner wall of the injection hole is fixedly connected with an injection conduit which is sleeved with a positioning pipe, the far-end side wall of the injector is provided with an induction hole which is a circular through hole and communicated with the inside of the injector, and a liquid viscosity sensor is fixedly mounted on the inner wall of the induction hole and used for detecting the viscosity of the bone cement in the injector.
Preferably, the vibration mechanism includes a second micro direct current motor, the second micro direct current motor is fixedly mounted on the inner wall of one side of the far end of the injection sleeve, the length of the shaft lever of the second micro direct current motor is greater than the outer diameter of the far end of the container, a plurality of vibration blocks are fixedly mounted on the side wall of the shaft lever of the second micro direct current motor, the vibration blocks are of an arc-shaped structure and are attached to the outer wall of the far end of the injector, a plurality of tension springs are fixedly mounted on the outer wall of the far end of the injector and are provided with four tension springs, the tension springs are fixedly connected with the inner wall of the far end of the injection sleeve, the pushing mechanism comprises a moving member, the moving member is composed of a cylinder in the middle part and round rods at two ends, threads matched with the rotation groove are formed in the outer side wall of the moving member, and the moving member is in threaded connection with the rotation groove.
Preferably, the far end of the moving member is fixedly provided with a mud pressing member, the mud pressing member is of a hollow cylindrical structure, the mud pressing member is sleeved with the far end inside the injector, the moving member is internally provided with an inner hole in a penetrating manner, the inner hole is a circular through hole, the inner wall of the inner hole is provided with threads, the near end of the mud pressing member is provided with an inlet hole, the inlet hole is a circular through hole, the inlet hole is communicated with the inner hole, two ends and the middle part of the outer side wall of the mud pressing member are respectively and fixedly provided with a plug ring, the plug ring is of an annular structure, the outer side wall of the plug ring is attached to the inner wall of the injector, the plug ring is made of rubber materials, so that bone cement in the pushing mechanism cannot leak when pushing the bone cement, the near end of the moving member is fixedly provided with a holding rod, the holding rod is of a cylindrical structure, the center of the side wall of the holding rod is provided with a holding hole, and the holding hole is a circular through hole, the holding hole is communicated with the inner hole.
Preferably, valve mechanism is located pushing mechanism's distal end, valve mechanism includes first miniature direct current motor, the fixed inside distal end that sets up at mud pressing spare of first miniature direct current motor, the mounting groove has been seted up to mud pressing spare's distal end inner wall, and the mounting groove is the arc wall, first miniature direct current motor fixed mounting is inside the mounting groove, first miniature direct current motor's axostylus axostyle one end fixed mounting has the end cap, and the end cap is spherical structure, the through-hole has been seted up to the outer wall of end cap, the discharge orifice has been seted up to mud pressing spare's distal end, and the discharge orifice is circular through-hole, the position of discharge orifice corresponds with through-hole on the end cap, the arc opening has still been seted up to the one end that the discharge orifice is close to the end cap, the outer wall laminating of arc opening on the discharge orifice and end cap, mud pressing spare's inside is provided with the liquid component of bone cement.
Preferably, secondary injection mechanism includes the ejector pin, and the ejector pin is the round bar structure, the lateral wall of ejector pin seted up with hole assorted screw thread, ejector pin and hole threaded connection, the ejector pin passes the entrance hole extends to the inside of pressing mud spare, the distal end fixed mounting of ejector pin has the push pedal, and the push pedal is the disc-shaped structure, the push pedal is laminated with the inner chamber of pressing mud spare, the near-end of ejector pin passes hold the hole and extend to the outside of holding rod, the near-end fixed mounting of ejector pin has the rolling ball, and the rolling ball is spherical structure.
Preferably, the injection catheter includes the restoration layer, and the restoration layer is the pipe shape structure, the restoration layer is made for phosphor bronze material, the lateral wall and the inside wall of restoration layer all cover and have the tough layer of one deck, tough layer is woven for nylon fiber and forms, a lateral wall face that the tough layer was kept away from the restoration layer covers one deck wearing layer respectively, the wearing layer is made for the rubber material, the incision has been seted up to the near-end of injection catheter, makes things convenient for the registration arm to insert inside the injection catheter, the distal end of injection catheter is fixed to be provided with, for the hollow spherical structure, the lateral wall seted up the socket, the injection catheter passes through last socket and fixed connection together, the lateral wall on seted up a plurality of cement hole.
(III) advantageous effects
Compared with the prior art, the invention provides the spinal bone cement injector with the secondary injection mechanism, which has the following beneficial effects:
1. the spinal bone cement injector with the secondary injection mechanism is characterized in that bone cement is filled into the container, the pushing mechanism is pushed into the container, the holding rod is rotated to drive the moving piece to rotate, the moving piece rotates to drive the mud pressing piece to move towards the far end, meanwhile, the far end of the device faces to the right upper part to prevent the bone cement in the container from leaking, the clamping rod is rotated to ensure that the clamping rod is not contacted with the clamping groove any more, meanwhile, the clamping rod is positioned in the clamping groove, the controller controls the second micro direct current motor to operate, the shaft lever of the second micro direct current motor rotates to drive the vibration block to rotate, the vibration block rotates to hit the bottom of the injector, simultaneously, the tension spring acts on the injector simultaneously, so that the vibration amplitude of the injector is increased, the mixing degree of the bone cement is improved, the bone cement is placed after being mixed for waiting for injection, the bone cement is mixed before an operation, and the mixing effect of the bone cement is improved.
2. The spinal bone cement injector with the secondary injection mechanism senses the bone cement viscosity inside a container through a liquid viscosity sensor, when the bone cement viscosity is not at a value specified in injection treatment, a corresponding indicator lamp flickers, at the moment, the shaft lever of a first miniature direct current motor is controlled to rotate through a control controller, the shaft lever of the first miniature direct current motor drives a plug to rotate, a through hole in the plug is communicated with a flow hole, then a rotating ball is rotated to drive a push rod to rotate, the push rod moves towards a far end to drive a push plate to move, the push plate moves to push bone cement component liquid inside a mud pressing piece to enter the container to be mixed with bone cement, a vibration mechanism is started simultaneously to mix the liquid inside the container, after the liquid viscosity sensor detects that the bone cement inside the container recovers to normal viscosity, a second process indicator lamp is normally on, the axostylus axostyle of the first miniature direct current motor of control controller control rotates, and the axostylus axostyle of first miniature direct current motor rotates and drives the end cap and rotate for through-hole and discharge orifice on the end cap no longer communicate together, and rotatory supporting rod simultaneously makes centre gripping post and centre gripping groove continue the butt together, thereby makes this equipment can detect bone cement concentration at the operation in-process, prevents that bone cement from solidifying at the operation in-process, and the influence operation is gone on.
3. This spine bone cement syringe with secondary injection mechanism through with on the bone cement syringe through between the bushing insert spine bone, the rotary moving member for pushing mechanism promotes bone cement and gets into the injection pipe, and bone cement is through overflowing around to in the spine bone, makes bone cement distribute evenly.
4. The spinal bone cement injector with the secondary injection mechanism has the advantages that after bone cement is inserted between spinal bones and injection is finished, the corresponding third indicator light is lightened, the control controller controls the shaft rod of the first micro direct current motor to rotate, the shaft rod of the first micro direct current motor rotates to drive the plug to rotate, so that the through hole in the plug is communicated with the flow hole, the rotating ball rotates to drive the ejector rod to rotate, the ejector rod moves towards the far end to drive the push plate to move, the push plate moves to push bone cement component liquid inside the mud pressing piece to enter the container, at the moment, the bone cement injector is drawn out again, so that the bone cement component liquid enters the container and the bone cement is injected between the spinal bones for the second time inside the injection catheter, a cavity part generated during bone cement injection is filled, and the device can avoid the generation of a cavity when the bone cement injector is drawn out, the firmness of the bone cement among the bone blocks is improved.
5. This spinal column bone cement syringe with secondary injection mechanism through taking the bone cement syringe out, rotates rolling ball and holding rod once more for the inside bone cement between the injection pipe of container is released by bone cement component liquid, makes the inside and injection pipe of container by the clean up, has avoided bone cement to solidify between the inside and injection pipe of container, causes the unable condition of using once more of bone cement syringe to take place.
6. This spinal column bone cement syringe with secondary injection mechanism through the multilayer injection pipe that sets up for this equipment can insert the injection pipe distal end better and inject between the bone when using, and the space is narrow and small when the injection pipe gets into between the bone simultaneously, and the characteristic that can bend makes bone cement syringe more nimble convenient.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of a pushing mechanism according to the present invention;
FIG. 3 is a schematic sectional view of the overall front view of the present invention;
FIG. 4 is a schematic sectional front view of the pushing mechanism and the secondary injection mechanism of the present invention;
FIG. 5 is a schematic sectional structural view of the mud-pressing member in a front view;
FIG. 6 is a schematic view of a partial cross-sectional configuration of an injection catheter in accordance with the present invention;
fig. 7 is a partial front sectional structural schematic view of the injection catheter of the present invention.
In the figure: 100 an injection sleeve; 101 a clamping hole; 102 an injection hole; 103 a limiting block; 104 clamping rods; 105 a clamping post; 200 of an injector; 201 a clamping groove; 202 mud holes; 203 positioning a tube; 204 sensing holes; 205 a liquid viscosity sensor; 206 rotating the trough; 300 wear resistant layer; 301 a tough layer; 302 a recovery layer; 303, cutting; 400 pressing a mud piece; 401 moving parts; 402 an inner hole; 403, holding the rod; 404 a holding hole; 405 a plug ring; 406 into the bore; 500 a first micro dc motor; 501, plugging; 502 flow holes; 503 mounting grooves; 600 ejector rods; 601, pushing a plate; 602 rotating the ball; 700 a second micro dc motor; 701 vibrating block; 702 tension spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention is a spinal bone cement injector with a secondary injection mechanism, including an injection sleeve 100, wherein the injection sleeve 100 is detachably provided with an injection mechanism therein, the injection mechanism includes a container and a pushing mechanism for pushing out bone cement, and the pushing mechanism is located inside the container; the injection sleeve 100 is of a hollow cylindrical structure, the near end of the injection sleeve 100 is open, and the far end of the injection sleeve 100 is inserted with an injection catheter for guiding bone cement pushed out of the injection mechanism into a bone of a patient; the far end of the injection catheter is fixedly connected with a scattering mechanism for uniformly driving bone cement into the bone of a patient; the far end in the injection sleeve 100 is fixedly provided with a vibration mechanism for mixing bone cement in the injection mechanism, wherein the bone cement is formed by mixing and stirring dry powder and liquid; the side walls of the two sides of the injection mechanism are respectively and fixedly provided with a clamping mechanism for fixing the injection mechanism; the far end in the pushing mechanism is fixedly provided with a valve mechanism for controlling the closing and opening of an outflow opening of the bone cement liquid part in the pushing mechanism; the near end in the pushing mechanism is movably provided with a secondary injection mechanism, so that the bone cement liquid in the pushing mechanism is pushed out.
Further, the container comprises an injector 200, the injector 200 is a hollow cylindrical structure, the proximal end of the injector 200 is open, the outer walls of the two sides of the injector 200 are respectively provided with a clamping groove 201, the clamping groove 201 is a rectangular groove, the outer walls of the two sides of the injection sleeve 100 are respectively provided with a clamping hole 101, the clamping hole 101 is a circular through hole, the inner side wall of the clamping hole 101 is provided with a thread, the clamping hole 101 corresponds to the clamping groove 201 in position, the clamping mechanism comprises a clamping column 105, the clamping column 105 is a cylindrical structure, a clamping rod 104 is rotatably arranged in the clamping hole 101, the clamping rod 104 is a cylindrical structure, the side wall of the clamping rod 104 is provided with a thread matched with the clamping hole 101, the clamping hole 101 is in threaded connection with the clamping rod 104, one end of the clamping column 105 far away from the injector 200 is fixedly connected with the clamping rod 104, the one end that centre gripping post 105 is close to syringe 200 and the tank bottom wall butt of centre gripping groove 201, the one end fixed mounting that syringe 200 was kept away from to clamping rod 104 has stopper 103, and stopper 103 is the ring shape structure, stopper 103 is located the outside of injection cover 100 and laminates with the outer wall of injection cover 100 to make this equipment by the centre gripping stable, can not drop.
Further, the inner side wall of the injector 200 is provided with a rotating groove 206, the rotating groove 206 is an annular groove, the inner wall surface of the rotating groove 206 is provided with threads, the center of the far end of the injector 200 is provided with a mud hole 202, the mud hole 202 is a circular through hole, the inner wall of the mud hole 202 is fixedly connected with a positioning tube 203, the positioning tube 203 is a circular tube structure, the positioning tube 203 extends into the injector 200, the center of the far end of the injection sleeve 100 is provided with an injection hole 102, the injection hole 102 is a circular through hole, the inner wall of the injection hole 102 is fixedly connected with an injection catheter, the injection catheter is sleeved with the positioning tube 203, the far end side wall of the injector 200 is provided with a sensing hole 204, the sensing hole 204 is a circular through hole, the sensing hole 204 is communicated with the inside of the injector 200, and the inner wall of the sensing hole 204 is fixedly provided with a liquid viscosity sensor 205, the liquid viscosity sensor 205 is of an existing structure, and will not be described herein, and the liquid viscosity sensor 205 is used for detecting the viscosity of the bone cement inside the syringe 200, so that the device can be conveniently positioned.
Further, the vibration mechanism includes a second micro dc motor 700, the second micro dc motor 700 is of an existing structure, details are not repeated here, the second micro dc motor 700 is fixedly mounted on an inner wall of a distal end side of the injection sleeve 100, a length of a shaft rod of the second micro dc motor 700 is greater than an outer diameter of a distal end of the container, a plurality of vibration blocks 701 are fixedly mounted on a side wall of the shaft rod of the second micro dc motor 700, the vibration blocks 701 are of an arc structure, the vibration blocks 701 are attached to an outer wall of a distal end of the injector 200, a plurality of tension springs 702 are fixedly mounted on the outer wall of the distal end of the injector 200, four tension springs 702 are provided, the tension springs 702 are fixedly connected with the inner wall of the distal end of the injection sleeve 100, the pushing mechanism includes a moving member 401, the moving member 401 is composed of a cylinder at a middle portion and round rods at two ends, a thread matched with the rotation groove 206 is provided on an outer side wall of the moving member 401, the moving member 401 is in threaded connection with the rotating groove 206, and the tension spring 702 can increase the reciprocating motion amplitude of the container, so that the mixing of bone cement liquid is facilitated.
Further, a mud pressing piece 400 is fixedly installed at the far end of the moving piece 401, the mud pressing piece 400 is of a hollow cylindrical structure, the mud pressing piece 400 is sleeved with the far end inside the injector 200, an inner hole 402 penetrates through the inside of the moving piece 401, the inner hole 402 is a circular through hole, threads are formed in the inner wall of the inner hole 402, an inlet hole 406 is formed in the near end of the mud pressing piece 400, the inlet hole 406 is a circular through hole, the inlet hole 406 is communicated with the inner hole 402, two ends and the middle part of the outer side wall of the mud pressing piece 400 are respectively and fixedly installed with a plug ring 405, the plug ring 405 is of a circular ring structure, the outer side wall of the plug ring 405 is attached to the inner wall of the injector 200, the plug ring 405 is made of rubber, so that bone cement in the pushing mechanism cannot leak when pushing the bone cement, a holding rod 403 is fixedly installed at the near end of the moving piece 401, and the holding rod 403 is of a cylindrical structure, the holding rod 403 is provided with a holding hole 404 at the center of the sidewall, the holding hole 404 is a circular through hole, and the holding hole 404 is communicated with the inner hole 402.
Further, the valve mechanism is located at the far end of the pushing mechanism, the valve mechanism includes a first micro dc motor 500, the first micro dc motor 500 is of an existing structure, and will not be described herein, the first micro dc motor 500 is fixedly disposed at the far end inside the mud pressing member 400, the far end inner wall of the mud pressing member 400 is provided with a mounting groove 503, the mounting groove 503 is an arc-shaped groove, the first micro dc motor 500 is fixedly mounted inside the mounting groove 503, one end of the shaft rod of the first micro dc motor 500 is fixedly mounted with a plug 501, the plug 501 is of a spherical structure, the outer wall of the plug 501 is provided with a through hole, the far end of the mud pressing member 400 is provided with a flow hole 502, the flow hole 502 is a circular through hole, the position of the flow hole 502 corresponds to the through hole on the plug 501, one end of the flow hole 502 close to the plug 501 is further provided with an arc-shaped opening, the arc-shaped opening on the flow hole 502 is attached to the outer wall of the plug 501, the inside of the mud jacking member 400 is provided with a liquid component of bone cement.
Further, secondary injection mechanism includes ejector pin 600, and ejector pin 600 is the round bar structure, the lateral wall of ejector pin 600 seted up with hole 402 assorted screw thread, ejector pin 600 and hole 402 threaded connection, ejector pin 600 passes the access hole 406 extends to the inside of pressing mud piece 400, the distal end fixed mounting of ejector pin 600 has push plate 601, and push plate 601 is the round plate shape structure, push plate 601 and the laminating of the inner chamber of pressing mud piece 400, the near-end of ejector pin 600 passes hold the outside that hole 404 extended to holding rod 403, the near-end fixed mounting of ejector pin 600 has rolling ball 602, and rolling ball 602 is spherical structure.
Further, the injection catheter comprises a recovery layer 302, the recovery layer 302 is a round tube structure, the recovery layer 302 is made of phosphor bronze, the outer side wall and the inner side wall of the recovery layer 302 are both covered with a tough layer 301, the tough layer 301 is woven by nylon fibers, a wear-resistant layer 300 is respectively covered on one side wall surface of the tough layer 301 far away from the recovery layer 302, the wear-resistant layer 300 is made of rubber, the near end of the injection catheter is provided with a notch 303, so that the positioning tube 203 can be conveniently inserted into the injection catheter, the far end of the injection catheter is fixedly provided with a hollow spherical structure 304, the side wall of the hollow spherical structure 304 is provided with a socket, the injection conduit is fixedly connected with the hollow spherical structure 304 through a socket on the hollow spherical structure 304, and a plurality of cement holes are formed on the side wall of the hollow spherical structure 304. Thereby the injection conduit of the device can be bent and is more suitable for the working environment.
The lateral wall fixed mounting of injection cover 100 has the controller, the output of liquid viscosity inductor 205 is in the same place with the input electric connection of controller, the output of controller is in the same place with the input electric connection of the miniature direct current motor 700 of second, the output of controller and the input electric connection of first miniature direct current motor 500, the lateral wall of injection cover 100 still fixed mounting has three pilot lamp, and three pilot lamp corresponds the three use of this equipment, and when this equipment carried out one of them process promptly, the pilot lamp that corresponds was lighted, and three use is promptly:
the first process is as follows: the filler process, pack the container with bone cement promptly, push mechanism inside pushing the container, rotatory holding rod 403, holding rod 403 drives moving member 401 and rotates, moving member 401 rotates and drives and presses mud piece 400 to the distal end removal, simultaneously with the distal end of this equipment directly over, prevent the inside bone cement of container drip, rotatory holding rod 104, make holding rod 104 and centre gripping groove 201 contactless no longer, make holding rod 104 still be located inside centre gripping groove 201 simultaneously, the operation of controller control second miniature direct current motor 700, the axostylus axostyle of second miniature direct current motor 700 rotates and drives vibrations piece 701 rotatory, vibrations piece 701 rotatory bottom of hitting syringe 200 of beating, extension spring 702 produces the effect to syringe 200 simultaneously, make syringe 200's amplitude of vibration increase, improve bone cement's degree of mixing, mix and accomplish and place and wait for the injection.
The second process: namely, the liquid viscosity sensor 205 senses the viscosity of the bone cement in the container at any time, when the viscosity of the bone cement is not at a value specified in injection therapy, the corresponding indicator light flickers, at this time, the control controller controls the shaft rod of the first micro direct current motor 500 to rotate, the shaft rod of the first micro direct current motor 500 rotates to drive the plug 501 to rotate, so that the through hole on the plug 501 is communicated with the flow hole 502, then the rotating ball 602 rotates to drive the ejector rod 600 to rotate, the ejector rod 600 moves towards the far end to drive the push plate 601 to move, the push plate 601 moves to push the bone cement component liquid in the mud pressing piece 400 to enter the container to be mixed with the bone cement, the vibration mechanism is started simultaneously to mix the liquid in the container, after the liquid viscosity sensor 205 detects that the bone cement in the container returns to a normal viscosity, the second process indicator light normally, the control controller controls the shaft rod of the first micro direct current motor 500 to rotate, the shaft of the first micro dc motor 500 rotates to drive the plug 501 to rotate, so that the through hole of the plug 501 is not communicated with the flow hole 502, and the clamping rod 104 is rotated to continuously abut against the clamping column 105 and the clamping groove 201.
The third process: that is, after the bone cement is inserted between the vertebral bones and injected, the corresponding third indicator light is turned on, the control controller controls the shaft lever of the first micro direct current motor 500 to rotate, the shaft lever of the first micro direct current motor 500 rotates to drive the plug 501 to rotate, so that the through hole on the plug 501 is communicated with the flow hole 502, the rotating ball 602 is rotated, the rotating ball 602 rotates to drive the ejector rod 600 to rotate, the ejector rod 600 moves towards the far end to drive the push plate 601 to move, the push plate 601 moves to push the bone cement component liquid inside the mud pressing piece 400 to enter the container, at the moment, the bone cement injector is drawn out again, so that the bone cement component liquid enters the container and the inside of the injection catheter to inject the bone cement into the vertebral bones for a second time, the hollow spherical structure 304 is filled in the cavity part generated during the injection of the bone cement, then the bone cement injector is drawn out, the rotating ball 602 and the holding rod 403 are rotated again, so that the bone cement between the inside of the container and the injection catheter is pushed out by the bone cement component liquid, so that the inside of the container and the injection catheter are cleaned.
The working principle is as follows: filling bone cement into a container, pushing a pushing mechanism into the container, rotating a holding rod 403, driving a moving member 401 to rotate by the holding rod 403, driving a mud pressing member 400 to move towards a far end by the rotating of the moving member 401, and simultaneously, facing the far end of the device to be right above to prevent the bone cement in the container from dripping, rotating a clamping rod 104 to prevent the clamping rod 104 from being in contact with a clamping groove 201, and simultaneously enabling the clamping rod 104 to be positioned in the clamping groove 201, controlling a second micro direct current motor 700 to operate by a controller, driving a vibrating block 701 to rotate by a shaft rod of the second micro direct current motor 700, rotationally striking the bottom of an injector 200 by the vibrating block 701, and simultaneously acting on the injector 200 by a tension spring 702 to increase the vibration amplitude of the injector 200, improve the mixing degree of the bone cement, and after mixing, placing and waiting for injection;
the liquid viscosity sensor 205 senses the viscosity of the bone cement in the container, when the viscosity of the bone cement is not in a value specified in injection treatment, the corresponding indicator light flickers, at the moment, the controller controls the shaft rod of the first micro direct current motor 500 to rotate, the shaft rod of the first micro direct current motor 500 rotates to drive the plug 501 to rotate, so that the through hole on the plug 501 is communicated with the flow hole 502, then the rotating ball 602 rotates to drive the ejector rod 600 to rotate, the ejector rod 600 moves towards the far end to drive the push plate 601 to move, the push plate 601 moves to push the bone cement component liquid in the mud pressing piece 400 to enter the container to be mixed with the bone cement, the vibration mechanism is started simultaneously to mix the liquid in the container, after the liquid viscosity sensor 205 detects that the bone cement in the container recovers to normal viscosity, the second process indicator light normally, the controller controls the shaft rod of the first micro direct current motor 500 to rotate, the shaft rod of the first micro direct current motor 500 rotates to drive the plug 501 to rotate, so that the through hole on the plug 501 is not communicated with the flow hole 502, and meanwhile, the clamping rod 104 is rotated, so that the clamping column 105 and the clamping groove 201 are continuously abutted together;
inserting the hollow spherical structure 304 on the bone cement injector into the space between the spinal bones through the sleeve, rotating the moving member 401 to enable the pushing mechanism to push the bone cement to enter the injection guide pipe, and enabling the bone cement to overflow from the periphery in the spinal bones through the hollow spherical structure 304 to enable the bone cement to be uniformly distributed;
after the bone cement is inserted between the spinal bones and injected, the corresponding third indicator light is turned on, the control controller controls the shaft lever of the first micro direct current motor 500 to rotate, the shaft lever of the first micro direct current motor 500 rotates to drive the plug 501 to rotate, so that the through hole on the plug 501 is communicated with the flow hole 502, the rotating ball 602 is rotated, the rotating ball 602 rotates to drive the ejector rod 600 to rotate, the ejector rod 600 moves towards the far end to drive the push plate 601 to move, the push plate 601 moves to push the bone cement component liquid in the mud pressing piece 400 to enter the container, at the moment, the bone cement injector is drawn out again, so that the bone cement component liquid enters the container and the inside of the injection catheter to inject the bone cement between the spinal bones for the second time, the cavity part generated when the hollow spherical structure 304 injects the bone cement is filled, then the bone cement injector is drawn out, the ball 602 and the holding rod 403 are rotated again, so that the bone cement between the inside of the container and the injection catheter is pushed out by the bone cement component liquid, the inside of the container and the injection catheter are cleaned, and the condition that the bone cement injector cannot be reused due to the fact that the bone cement is solidified between the inside of the container and the injection catheter is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A spinal cement injector with a secondary injection mechanism, comprising an injection sleeve (100), characterized in that: the injection sleeve (100) is detachably provided with an injection mechanism, the injection mechanism comprises a container and a pushing mechanism, the container is used for pushing out bone cement, and the pushing mechanism is positioned in the container;
the far end of the injection sleeve (100) is inserted with an injection catheter for guiding the bone cement pushed out from the injection mechanism into the bone of the patient;
the far end of the injection catheter is fixedly connected with a scattering mechanism for uniformly driving bone cement into the bone of a patient;
the far end in the injection sleeve (100) is fixedly provided with a vibration mechanism for mixing bone cement in the injection mechanism, wherein the bone cement is formed by mixing and stirring dry powder and liquid; the side walls of the two sides of the injection mechanism are respectively and fixedly provided with a clamping mechanism for fixing the injection mechanism;
the far end in the pushing mechanism is fixedly provided with a valve mechanism for controlling the closing and opening of an outflow opening of the bone cement liquid part in the pushing mechanism;
a secondary injection mechanism is movably arranged at the near end in the pushing mechanism, so that bone cement liquid in the pushing mechanism is pushed out;
the container comprises an injector (200), a mud hole (202) is formed in the center of the far end of the injector (200), a positioning pipe (203) is fixedly connected to the inner wall of the mud hole (202), the positioning pipe (203) extends into the injector (200), an injection hole (102) is formed in the center of the far end of the injection sleeve (100), the inner wall of the injection hole (102) is fixedly connected with an injection catheter, the injection catheter is sleeved with the positioning pipe (203), an induction hole (204) is formed in the side wall of the far end of the injector (200), the induction hole (204) is communicated with the interior of the injector (200), and a liquid viscosity inductor (205) is fixedly mounted on the inner wall of the induction hole (204) and used for detecting the viscosity of bone cement in the injector (200); the pushing mechanism comprises a moving member (401), the moving member (401) comprises a cylinder at the middle part and round rods at two ends, a mud pressing member (400) is fixedly mounted at the far end of the moving member (401), the mud pressing member (400) is sleeved with the far end inside the injector (200), an inner hole (402) is formed in the moving member (401) in a penetrating mode, threads are formed in the inner wall of the inner hole (402), an inlet hole (406) is formed in the near end of the mud pressing member (400), the inlet hole (406) is communicated with the inner hole (402), two ends of the outer side wall of the mud pressing member (400) and the middle part are respectively and fixedly provided with a plug ring (405), the outer side wall of the plug ring (405) is attached to the inner wall of the injector (200), the valve mechanism is located at the far end of the pushing mechanism, and comprises a first micro direct current motor (500), the first micro direct current motor (500) is fixedly arranged at the far end inside the mud pressing piece (400), a mounting groove (503) is formed in the far end inner wall of the mud pressing piece (400), a plug (501) is fixedly mounted at one end of a shaft rod of the first micro direct current motor (500), a through hole is formed in the outer wall of the plug (501), a flow hole (502) is formed in the far end of the mud pressing piece (400), the position of the flow hole (502) corresponds to the through hole in the plug (501), an arc-shaped opening is further formed in one end, close to the plug (501), of the flow hole (502), the arc-shaped opening in the flow hole (502) is attached to the outer wall of the plug (501), and liquid components of bone cement are arranged inside the mud pressing piece (400); the secondary injection mechanism comprises an ejector rod (600), threads matched with an inner hole (402) are formed in the side wall of the ejector rod (600), the ejector rod (600) is in threaded connection with the inner hole (402), the ejector rod (600) penetrates through the inlet hole (406) to extend to the inside of the mud pressing piece (400), a push plate (601) is fixedly mounted at the far end of the ejector rod (600), and the push plate (601) is attached to the inner cavity of the mud pressing piece (400).
2. The spinal bone cement injector with a secondary injection mechanism of claim 1, wherein: the injection device is characterized in that clamping grooves (201) are respectively formed in the outer walls of two sides of the injector (200), clamping holes (101) are respectively formed in the outer walls of two sides of the injection sleeve (100), threads are formed in the inner side walls of the clamping holes (101), the clamping holes (101) correspond to the clamping grooves (201), the clamping mechanism comprises a clamping column (105), a clamping rod (104) is rotatably arranged in the clamping holes (101), threads matched with the clamping holes (101) are formed in the side walls of the clamping rod (104), the clamping holes (101) are in threaded connection with the clamping rod (104), one end, away from the injector (200), of the clamping column (105) is fixedly connected with the clamping rod (104), one end, close to the injector (200), of the clamping column (105) is abutted against the wall surface of the groove bottom of the clamping grooves (201), one end, away from the injector (200), of the clamping rod (104) is fixedly provided with a limiting block (103), the limiting block (103) is positioned outside the injection sleeve (100) and attached to the outer wall of the injection sleeve (100); the inner side wall of the injector (200) is provided with a rotating groove (206), the inner wall surface of the rotating groove (206) is provided with threads, the vibration mechanism comprises a second micro direct current motor (700), the second micro direct current motor (700) is fixedly arranged on the inner wall of one side of the far end of the injection sleeve (100), the length of a shaft lever of the second micro direct current motor (700) is larger than the outer diameter of the far end of the container, a plurality of vibration blocks (701) are fixedly arranged on the side wall of the shaft lever of the second micro direct current motor (700), the vibration blocks (701) are attached to the outer wall of the far end of the injector (200), a plurality of tension springs (702) are fixedly arranged on the outer wall of the far end of the injector (200), the tension springs (702) are fixedly connected with the inner wall of the far end of the injection sleeve (100), the outer side wall of the moving member (401) is provided with threads matched with the rotating groove (206), the moving piece (401) is in threaded connection with the rotating groove (206).
3. The spinal bone cement injector with a secondary injection mechanism of claim 2, wherein: the plug ring (405) is made of rubber, so that when the pushing mechanism pushes bone cement, the bone cement cannot leak, the holding rod (403) is fixedly mounted at the near end of the moving member (401), a holding hole (404) is formed in the center of the side wall of the holding rod (403), and the holding hole (404) is communicated with the inner hole (402).
4. The spinal bone cement injector with a secondary injection mechanism of claim 3, wherein: the first micro direct current motor (500) is fixedly arranged in the mounting groove (503).
5. The spinal bone cement injector with a secondary injection mechanism of claim 4, wherein: the proximal end of the ejector rod (600) passes through the holding hole (404) and extends to the outside of the holding rod (403), and the proximal end of the ejector rod (600) is fixedly provided with a rotating ball (602).
6. The spinal bone cement injector with a secondary injection mechanism of claim 5, wherein: the injection conduit comprises a recovery layer (302), wherein the recovery layer (302) is made of phosphor bronze material, the outer side wall and the inner side wall of the recovery layer (302) are both covered with a tough layer (301), the tough layer (301) is woven by nylon fibers, a wear-resistant layer (300) covers the side wall surface of the tough layer (301) far away from the recovery layer (302) respectively, the wear-resistant layer (300) is made of rubber, the near end of the injection catheter is provided with a notch (303) to facilitate the insertion of the positioning tube (203) into the injection catheter, the far end of the injection catheter is fixedly provided with a hollow spherical structure (304), the side wall of the hollow spherical structure (304) is provided with a socket, the injection conduit is fixedly connected with the hollow spherical structure (304) through a socket on the hollow spherical structure (304), and a plurality of cement holes are formed in the side wall of the hollow spherical structure (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521299.7A CN112790853B (en) | 2020-12-21 | 2020-12-21 | Spinal bone cement injector with secondary injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521299.7A CN112790853B (en) | 2020-12-21 | 2020-12-21 | Spinal bone cement injector with secondary injection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112790853A CN112790853A (en) | 2021-05-14 |
| CN112790853B true CN112790853B (en) | 2022-03-01 |
Family
ID=75807145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011521299.7A Active CN112790853B (en) | 2020-12-21 | 2020-12-21 | Spinal bone cement injector with secondary injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112790853B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114305640B (en) * | 2021-12-27 | 2022-08-19 | 西安交通大学第二附属医院 | Bone grafting device for orthopedics department |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009118397A1 (en) * | 2008-03-28 | 2009-10-01 | Jean-Charles Persat | Device for injecting a viscous fluid into the body |
| CN103908325A (en) * | 2013-01-09 | 2014-07-09 | 上海凯利泰医疗科技股份有限公司 | Device for injecting bone cement |
| CN103957829A (en) * | 2011-09-16 | 2014-07-30 | 德普伊新特斯产品有限责任公司 | Cement injector and cement injector connectors, and bone cement injector assembly |
| CN204951135U (en) * | 2015-08-13 | 2016-01-13 | 广州爱锘德医疗器械有限公司 | Bone cement injection syringe |
| CN107224322A (en) * | 2017-06-05 | 2017-10-03 | 广州爱锘德医疗器械有限公司 | Bone cement injector |
| CN111134826A (en) * | 2020-01-07 | 2020-05-12 | 常州百隆微创医疗器械科技有限公司 | Medical small bone cement filling device |
| CN211213461U (en) * | 2019-11-01 | 2020-08-11 | 常州百隆微创医疗器械科技有限公司 | Bone cement stirring injector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9066769B2 (en) * | 2005-08-22 | 2015-06-30 | Dfine, Inc. | Bone treatment systems and methods |
| US20170296247A1 (en) * | 2016-04-14 | 2017-10-19 | Shao-Kang Hsueh | Bone cement injection device |
-
2020
- 2020-12-21 CN CN202011521299.7A patent/CN112790853B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009118397A1 (en) * | 2008-03-28 | 2009-10-01 | Jean-Charles Persat | Device for injecting a viscous fluid into the body |
| CN103957829A (en) * | 2011-09-16 | 2014-07-30 | 德普伊新特斯产品有限责任公司 | Cement injector and cement injector connectors, and bone cement injector assembly |
| CN103908325A (en) * | 2013-01-09 | 2014-07-09 | 上海凯利泰医疗科技股份有限公司 | Device for injecting bone cement |
| CN204951135U (en) * | 2015-08-13 | 2016-01-13 | 广州爱锘德医疗器械有限公司 | Bone cement injection syringe |
| CN107224322A (en) * | 2017-06-05 | 2017-10-03 | 广州爱锘德医疗器械有限公司 | Bone cement injector |
| CN211213461U (en) * | 2019-11-01 | 2020-08-11 | 常州百隆微创医疗器械科技有限公司 | Bone cement stirring injector |
| CN111134826A (en) * | 2020-01-07 | 2020-05-12 | 常州百隆微创医疗器械科技有限公司 | Medical small bone cement filling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112790853A (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112790853B (en) | Spinal bone cement injector with secondary injection mechanism | |
| US3631847A (en) | Method and apparatus for injecting fluid into the vascular system | |
| US6383190B1 (en) | High pressure applicator | |
| US20090143765A1 (en) | Device for Mixing and Delivering Fluids for Tissue Repair | |
| CN105705182B (en) | Medicament injection apparatus | |
| JPH07443A (en) | Ophthalmologic sugical device for softening and extracting lenticular nucleus from eye of organism | |
| CN106725815B (en) | A kind of bone cement remote control injection device | |
| KR100772961B1 (en) | Injection system for mesotherapy carboxytherapy | |
| US20110040337A1 (en) | Screw for stabilizing a bone fracture and related kit | |
| WO2004064661A2 (en) | Dental anesthetic injection apparatus and methods for administering dental injections | |
| CN107362402A (en) | The automatic contrast injector of monotubular | |
| CN108309435A (en) | Radio frequency scalpel under a kind of mirror for surgical operation | |
| US8439677B2 (en) | Maintenance apparatus for medical hand piece | |
| CN108670826A (en) | A kind of portable insulin storage device | |
| CN201052184Y (en) | Wound flushing device | |
| KR101288950B1 (en) | Apparatus for injecting medicine | |
| CN210044257U (en) | Nucleus crushing device for lens | |
| CN110101448A (en) | A kind of photocuring hydrogel conveying device for Minimally Invasive Surgery and Method of printing in situ | |
| CN219423117U (en) | Circulating cold compress device | |
| CN218889732U (en) | Bone cement injector | |
| CN107616861A (en) | The injecting apparatus of the injection-type gel bone renovating material of quantitative constant speed | |
| CN213443776U (en) | Push-pull type portable medicine box | |
| CN220309361U (en) | Limb fixing device for peritoneal dialysis | |
| CN220477634U (en) | Fascia moxibustion tool | |
| CN211382566U (en) | Scraping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |