CN216797803U

CN216797803U - Bone cement is with pushing transfer device

Info

Publication number: CN216797803U
Application number: CN202121968102.4U
Authority: CN
Inventors: 李朝阳; 马李斌; 崔永顺; 吕维加
Original assignee: Shandong Mantak Biomedical Engineering Co ltd
Current assignee: Shandong Mantak Biomedical Engineering Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-06-24
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to the technical field of bone cement injection tools, in particular to a bone cement injection transfer device. The device stores bucket and luer connector formula sealing cap including injecting mechanism, bone cement, injects the mechanism and includes stay tube, one-way ratch, first spacing ring, second spacing ring, fixed handle, push down handle, connecting rod, fly leaf, spring, pressure release switch and torsional spring that moves back, and the front end of one-way ratch is connected with the piston, and the front end of stay tube is connected with bone cement and stores the bucket, and the front end of bone cement storage bucket is connected with luer connector formula sealing cap. The injection mechanism disclosed by the utility model can be repeatedly utilized, the injection transfer pressure can be effectively ensured to be sufficient, the pressure is released in a controllable manner in the injection process, the continuous leakage phenomenon of bone cement generated by inertia pressure is reduced, the operation stability is good, and the operation is simple and convenient.

Description

Bone cement is with pushing transfer device

Technical Field

The utility model relates to the technical field of bone cement injection tools, in particular to a bone cement injection transfer device.

Background

Bone cement is a common name of bone cement, is a medical material used for orthopedic surgery, and has a popular name due to partial physical properties and appearance and properties after solidification rather like white cement for building and decoration.

The bone cement bolus transfer tool is a common tool in the use process of bone cement, and the existing bone cement bolus transfer device has many defects in actual use, such as: (1) most of the products are disposable products, and the products cannot be reused, thereby causing resource waste; (2) the pressure of the pushing and injecting transfer cannot be ensured to be sufficient, the pressure relief cannot be controlled in the operation process, and the bone cement is easy to generate the continuous leakage phenomenon due to the tubular pressure; (3) the operation stability is poor and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a push injection transfer device for bone cement, which overcomes the defects of the prior art, can recycle a push injection mechanism, can effectively ensure that the push injection transfer pressure is sufficient, can release pressure in a controllable manner in the push injection process, reduces the phenomenon of continuous leakage of the bone cement caused by inertia pressure, and has good operation stability and simple and convenient operation.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a bone cement is with pushing transfer device, includes pushes mechanism, bone cement storage bucket and luer connector formula sealing cap, wherein:

the injection mechanism comprises a supporting tube, a one-way toothed bar, a first limiting ring, a second limiting ring, a fixed handle, a pressing handle, a connecting rod, a movable plate, a spring, a pressure relief retreat switch and a torsion spring, wherein the front end and the rear end of the supporting tube are respectively provided with a strip-shaped opening, the front end and the rear end of the supporting tube are respectively provided with a first limiting ring and a second limiting ring at intervals, the strip-shaped opening is positioned between the first limiting ring and the second limiting ring, the outer diameter of the one-way toothed bar is in clearance fit with the inner diameters of the first limiting ring and the second limiting ring, the one-way toothed bar penetrates through the first limiting ring and the second limiting ring, the two ends of the one-way toothed bar extend out from the two ends of the supporting tube, the lower end of the supporting tube is provided with the fixed handle, the upper end of the supporting tube is hinged downwards with the pressing handle, the pressing handle is positioned in front of the fixed handle, the pressing handle is hinged with one end of the connecting plate, and the other end of the connecting plate is connected with the movable plate, the movable plate is sleeved on the outer wall of the one-way tooth and located between the first limiting ring and the second limiting ring, a spring is arranged between the movable plate and the second limiting ring, a mounting groove is formed in the supporting tube behind the fixed handle, a pressure relief retreating switch is hinged in the mounting groove, the limiting tooth of the pressure relief retreating switch is abutted between two teeth of the one-way toothed bar, a torsion spring is sleeved on a hinge shaft of the pressure relief retreating switch, one support leg of the torsion spring is supported at the bottom of the mounting groove, and the other support leg of the torsion spring is supported on the pressure relief retreating switch;

the front end of the one-way toothed bar is connected with a piston, the front end of the supporting tube is connected with a bone cement storage barrel, and the front end of the bone cement storage barrel is connected with a luer-type sealing cap;

when the device is used, the piston is firstly arranged on the one-way toothed bar, the bone cement storage barrel is arranged on the supporting barrel, the stirred bone cement is filled in the bone cement storage barrel, the luer connector type sealing cap is arranged, the handle is continuously pressed downwards, when the pressing handle is close to the fixed handle, the spring is compressed, the air pressure has backward thrust on the one-way toothed bar, but the pressure relief retreat switch is abutted between two teeth of the one-way toothed bar at the moment to limit the one-way toothed bar to move forwards only and cannot move forwards, so the one-way toothed bar is fixed, the space behind the movable plate has forward driving force on the one-way toothed bar in the spring rebounding process of the spring, the one-way toothed bar moves forwards to drive the piston to move forwards in the bone cement storage barrel, the injection work of the bone cement is realized, when the pressure relief is needed to be carried out midway, the pressure relief retreat switch can be pressed down to enable the pressure relief retreat switch to be separated from the teeth of the one-way toothed bar, the one-way rack bar is pulled backwards to realize the pressure relief operation; after pushing, press the pressure release switch that moves back fast, twist down luer connector formula sealing cap, pull down the piston, pull down bone cement and store the bucket, remaining pushing mechanism can reuse.

Furthermore, an arc-shaped bulge is arranged at the upper end of the supporting cylinder, the downward pressing handle is Y-shaped, the forked end of the downward pressing handle is sleeved outside the supporting tube, and the top of the forked end of the downward pressing handle is hinged to two sides of the arc-shaped bulge; the connecting plate includes first connecting plate and second connecting plate, and first connecting plate is "L" shape, and the lower extreme of the vertical board of first connecting plate articulates within the jag end of pushing down the handle, and the horizontal board end of first connecting plate is articulated with the lower extreme of the second connecting plate of vertical setting, and the lower extreme at the fly leaf is fixed to the upper end of second connecting plate, the structural design form of pushing down the handle, the design form of articulated mode and connecting plate mutually supports, make the removal of fly leaf better steady, and the compression atress of spring is more even.

Furthermore, the connecting rod is in threaded connection with the piston, so that the connecting rod is convenient to detach and install.

Furthermore, the front end of the supporting tube is in threaded connection with the rear end of the bone cement storage barrel, so that the supporting tube is convenient to detach and install.

Furthermore, the front end of the bone cement storage barrel is in threaded connection with the luer connector type sealing cap, so that the bone cement storage barrel is convenient to disassemble and assemble.

The utility model has the beneficial effects that: compared with the prior art, the push injection transfer device for bone cement has the following advantages: the injection mechanism can be repeatedly used, injection transfer pressure can be effectively ensured to be abundant, controllable pressure relief is realized in the injection process, the phenomenon that bone cement continuously leaks out due to inertia pressure is reduced, the operation stability is good, and the operation is simple and convenient.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a perspective view of another embodiment of the present invention;

FIG. 3 is a schematic structural view of the injection mechanism, the piston, the bone cement storage barrel and the luer-type sealing cap of the present invention after being disassembled;

FIG. 4 is a schematic structural view of the injection mechanism with the support tube removed;

FIG. 5 is a schematic view of another angle configuration of the injection mechanism of the present invention with the support tube removed;

the bone cement injection device comprises a 1 injection mechanism, a 101 supporting tube, a 102 one-way toothed bar, a 103 first limiting ring, a 104 second limiting ring, a 105 fixed handle, a 106 downward pressing handle, a 107 movable plate, a 108 spring, a 109 pressure releasing and retreating switch, a 110 torsion spring, a 111 elongated opening, a 112 arc-shaped protrusion, a 113 first connecting plate, a 114 second connecting plate, a 2 bone cement storage barrel, a 3 luer connector type sealing cap and a 4 piston.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.

In the embodiment shown in fig. 1-5, a bone cement bolus transfer device comprises a bolus mechanism 1, a bone cement storage barrel 2 and a luer-type sealing cap 3, wherein:

the injection mechanism 1 comprises a support tube 101, a one-way toothed bar 102, a first limit ring 103, a second limit ring 104, a fixed handle 105, a downward pressing handle 106, a connecting rod, a movable plate 107, a spring 108, a pressure relief and retreat switch 109 and a torsion spring 110, wherein the front end and the rear end of the support tube 101 are respectively provided with a strip-shaped opening 111, the first limit ring 103 and the second limit ring 104 are arranged in the support tube 101 at intervals from front to rear, the strip-shaped opening 111 is positioned between the first limit ring 103 and the second limit ring 104, the outer diameter of the one-way toothed bar 102 is in clearance fit with the inner diameters of the first limit ring 103 and the second limit ring 104, the one-way toothed bar 102 passes through the first limit ring 103 and the second limit ring 104, two ends of the one-way toothed bar 102 extend out from two ends of the support tube 101, the lower end of the support tube 101 is provided with the fixed handle 105, the upper end of the support tube 101 is hinged with the downward pressing handle 106, and the downward pressing handle 106 is positioned in front of the fixed handle 105, the pressing handle 106 is hinged with one end of the connecting plate, the other end of the connecting plate is connected to the movable plate 107, the movable plate 107 is sleeved on the outer wall of the one-way tooth, the movable plate 107 is located between the first limiting ring 103 and the second limiting ring 104, a spring 108 is arranged between the movable plate 107 and the second limiting ring 104, a mounting groove is formed in the supporting tube 101 behind the fixed handle 105, a pressure relief retreat switch 109 is hinged in the mounting groove, the limiting tooth of the pressure relief retreat switch 109 is abutted between two teeth of the one-way tooth bar 102, a torsion spring 110 is sleeved on a hinged shaft of the pressure relief retreat switch 109, one supporting leg of the torsion spring 110 is supported at the bottom of the mounting groove, and the other supporting leg is supported on the pressure relief retreat switch 109;

the front end of the one-way toothed bar 102 is connected with a piston 4, the front end of the supporting tube 101 is connected with a bone cement storage barrel 2, and the front end of the bone cement storage barrel 2 is connected with a luer connector type sealing cap 3;

when the device is used, the piston 4 is firstly installed on the one-way toothed bar 102, the bone cement storage barrel 2 is installed on the supporting barrel, the stirred bone cement is filled in the bone cement storage barrel 2, the luer connector type sealing cap 3 is installed, the pressing handle 106 is continuously pressed downwards, when the pressing handle 106 approaches to the fixed handle 105, the spring 108 is compressed, the air pressure has backward thrust on the one-way toothed bar 102 at the moment, but the pressure relief position-withdrawing switch 109 is abutted between two teeth of the one-way toothed bar 102 at the moment, the one-way toothed bar 102 is limited to move forwards only and cannot move in sequence, so that the one-way toothed bar 102 is not moved, the space behind the movable plate 107 has forward driving force on the one-way toothed bar 102 in the rebound process of the spring 108, the one-way toothed bar 102 moves forwards, the piston 4 is driven to move forwards in the bone cement storage barrel 2, the pushing work of the bone cement is realized, and when pressure relief is needed in a midway pause, the pressure relief switch 109 can be pressed down to separate the pressure relief switch 109 from the teeth of the unidirectional toothed bar 102, and the unidirectional toothed bar 102 is pulled backwards to realize the pressure relief operation; after pushing, press pressure release switch 109 that moves back fast, twist down luer connector formula sealing cap 3, pull down piston 4, pull down bone cement storage bucket 2, remaining pushing mechanism 1 can reuse.

In this embodiment, an arc-shaped protrusion 112 is disposed at the upper end of the supporting tube, the downward pressing handle 106 is in a "Y" shape, the forked end of the downward pressing handle 106 is sleeved outside the supporting tube 101, and the top of the forked end of the downward pressing handle 106 is hinged to two sides of the arc-shaped protrusion 112; the connecting plate includes first connecting plate 113 and second connecting plate 114, first connecting plate 113 is "L" shape, the lower extreme of the vertical board of first connecting plate 113 articulates within the jag end of pushing down handle 106, the horizontal board end of first connecting plate 113 is articulated with the lower extreme of the second connecting plate 114 of vertical setting, the lower extreme at fly leaf 107 is fixed to the upper end of second connecting plate 114, the structural design form of pushing down handle 106, the design form of articulated mode and connecting plate is mutually supported, make the removal of fly leaf 107 better steady, the compression atress of spring 108 is more even.

In this embodiment, the connecting rod is in threaded connection with the piston 4, the front end of the supporting tube 101 is in threaded connection with the rear end of the bone cement storage barrel 2, and the front end of the bone cement storage barrel 2 is in threaded connection with the luer-type sealing cap 3.

The above embodiments are only specific examples of the present invention, and the scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a bone cement is with pushing transfer device which characterized in that: including pushing injection mechanism, bone cement storage barrel and luer connector formula sealing cap, wherein:

the injection mechanism comprises a supporting tube, a one-way toothed bar, a first limiting ring, a second limiting ring, a fixed handle, a pressing handle, a connecting rod, a movable plate, a spring, a pressure relief retreat switch and a torsion spring, wherein the front end and the rear end of the supporting tube are respectively provided with a strip-shaped opening, the front end and the rear end of the supporting tube are respectively provided with a first limiting ring and a second limiting ring at intervals, the strip-shaped opening is positioned between the first limiting ring and the second limiting ring, the outer diameter of the one-way toothed bar is in clearance fit with the inner diameters of the first limiting ring and the second limiting ring, the one-way toothed bar penetrates through the first limiting ring and the second limiting ring, the two ends of the one-way toothed bar extend out from the two ends of the supporting tube, the lower end of the supporting tube is provided with the fixed handle, the upper end of the supporting tube is hinged downwards with the pressing handle, the pressing handle is positioned in front of the fixed handle, the pressing handle is hinged with one end of the connecting plate, and the other end of the connecting plate is connected with the movable plate, the movable plate is sleeved on the outer wall of the one-way gear, the movable plate is located between the first limiting ring and the second limiting ring, a spring is arranged between the movable plate and the second limiting ring, a mounting groove is formed in the supporting tube behind the fixed handle, a pressure relief retreating switch is hinged in the mounting groove, the limiting gear of the pressure relief retreating switch is abutted between two teeth of the one-way gear rod, a torsion spring is sleeved on a hinge shaft of the pressure relief retreating switch, one support leg of the torsion spring is supported at the bottom of the mounting groove, and the other support leg of the torsion spring is supported on the pressure relief retreating switch;

the front end of the one-way toothed bar is connected with a piston, the front end of the supporting tube is connected with a bone cement storage barrel, and the front end of the bone cement storage barrel is connected with a luer seal cap.

2. A bolus transfer device for bone cement as claimed in claim 1, wherein: the upper end of stay tube is provided with the arc arch, push down the handle and be "Y" shape, push down the outside at the stay tube of the forked end cover of handle, push down the top of the forked end of handle and articulate in the bellied both sides of arc.

3. A bolus transfer device for bone cement as claimed in claim 2, wherein: the connecting plate includes first connecting plate and second connecting plate, and first connecting plate is "L" shape, and the lower extreme of the vertical board of first connecting plate articulates within the jag end of pushing down the handle, and the horizontal board end of first connecting plate is articulated with the lower extreme of the second connecting plate of vertical setting, and the lower extreme at the fly leaf is fixed to the upper end of second connecting plate.

4. A bolus transfer device for bone cement as claimed in claim 1, wherein: the connecting rod is in threaded connection with the piston.

5. A bolus transfer device for bone cement as claimed in claim 1, wherein: the front end of the supporting tube is in threaded connection with the rear end of the bone cement storage barrel.

6. A bolus transfer device for bone cement according to claim 1, wherein: the front end of the bone cement storage barrel is in threaded connection with the luer connector type sealing cap.