CN209091589U - A kind of syringe type bone grafting instrument - Google Patents
A kind of syringe type bone grafting instrument Download PDFInfo
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- CN209091589U CN209091589U CN201821308330.7U CN201821308330U CN209091589U CN 209091589 U CN209091589 U CN 209091589U CN 201821308330 U CN201821308330 U CN 201821308330U CN 209091589 U CN209091589 U CN 209091589U
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- bone grafting
- rod
- cylinder
- injection head
- push
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Abstract
The utility model provides a kind of syringe type bone grafting instrument, belong to surgical medical equipment, the syringe type bone grafting instrument includes bone grafting cylinder, injection rod and inner push-rod, bone grafting cylinder includes the cylinder at middle part and the rear end cap and injection head at cylinder both ends are stated in setting, injection rod includes the slide push rod at middle part and plunger and tail cap that slide push rod both ends are arranged in, and inner push-rod includes push handle, the drive rod for being vertically mounted on push handle bottom and the anti-plug being connected with drive rod end.Syringe type bone grafting instrument provided by the utility model has the advantages that bone grafting position is accurate, bone grafting amount is accurate, bone grafting material can be sent directly into corresponding site by cylindric injection head, simultaneously, the inner push-rod being arranged inside slide push rod can be along the axially extended specific length of injection head, bone slag inside injection head is released, to prevent blocking inside injection head.
Description
Technical field
The utility model belongs to surgical medical equipment more particularly to a kind of syringe type bone grafting instrument.
Background technique
The development of spinal fusion has had the history of last 100 years in spinal operation.Spinal fusion is as spinal surgeons
A basic skills in wide clinical application.Spinal fusion rebuilds spinal stability in spinal trauma, degenerated spine disease
Stability reconstruction in terms of played important function.No matter how strong interior fixation, the correction of even three-dimensional six degree of freedom
Instrument still will finally complete good correction and the reconstruction of the physiology line of force and stability by Bony union.
At present spinal operation treatment in mainly be derived from body bone tissue carry out bone grafting based on, advantage is self bone tissue in-seam
Cell is the self osteocyte of survival, and bioactivity is good, is conducive to the fusion of bone, and self bone structure and biomechanics characteristic accord with
It closes bone grafting to need, no rejection, good biocompatibility, clinical part case also use allograph bone bone grafting, to supplement autologous bone not
Foot etc.；The bone grafting position of clinic spinal fusion has at present: interbody bone graft, intertransverse fusion, vertebral plate bone grafting, facet joint, spine
Bone grafting etc. between prominent.In surgical procedure, the common auxiliary instrument such as tweezers is generallyd use by bone grafting material and is implanted into corresponding site,
The case where having using bone grafting instrument, either implantation or the implantation of existing bone grafting instrument by hand, it is not accurate to there is bone grafting position, plants
The problems such as bone amount is not easy to control, and influences the operation of other surgical instruments, causes to damage to bone tissue, and bone grafting head is easy blocking.
Utility model content
Against the above technical problems, the utility model provides a kind of syringe type bone grafting instrument, accurate with bone grafting position,
Bone grafting material can be sent directly into corresponding site by the accurate advantage of bone grafting amount, cylindric injection head, meanwhile, in slide push rod
The inner push-rod of portion's setting can release the bone slag inside injection head, along the axially extended specific length of injection head to prevent from injecting
The internal blocking of head.
The technical solution has following technical characteristic:
A kind of syringe type bone grafting instrument characterized by comprising
One bone grafting cylinder, the bone grafting cylinder include the cylinder at middle part and rear end cap and injection that the cylinder both ends are arranged in
Slide opening is arranged in the middle part of head, the rear end cap；
One injection rod, the injection rod include the slide push rod at middle part and are separately positioned on pushing away for the slide push rod both ends
Plug and tail cap, the slide push rod pass through the slide opening, and one end that slide push rod is located inside bone grafting cylinder is connected through a screw thread institute
Plunger is stated, the inner wall cooperation of the plunger and the cylinder seals, and one end that slide push rod is located at outside bone grafting cylinder passes through screw thread
The tail cap is connected, the tail cap and slide push rod and plunger are internally provided with the through-hole for receiving the inner push-rod；
One inner push-rod, the inner push-rod include push handle, the drive rod for being vertically mounted on the push handle bottom and with transmission
The anti-plug that bar end is connected, in which: the drive rod and anti-plug are mounted in the through-hole, the push handle and tail cap it
Between be provided with reset spring.
Further, to be detachably connected between the cylinder, rear end cap and injection head, the upper and lower setting of the cylinder
There is external screw thread, the bottom interior wall of the rear end cap is provided with and the matched internal screw thread of the external screw thread, the top of the injection head
Inner wall is provided with and the matched internal screw thread of the external screw thread.
Further, the injection head is cylindric hollow structure, and the bottom interior wall that the injection head is communicated with cylinder is
Conical inboard wall.
Further, the end of the plunger is pyramidal structure, and the conical inboard wall of the pyramidal structure and injection head can
It fits closely.
Further, the through-hole includes coaxial arrangement transmission through-hole and end vias, and the transmission through-hole is for accommodating
The drive rod, the end vias is for accommodating the anti-plug.
Further, the diameter of the through-hole is greater than the diameter of slide push rod.
A kind of syringe type bone grafting instrument of the utility model has the advantages that
(1) the syringe type bone grafting instrument is cooperated by bone grafting cylinder and injection rod, can be accurately by quantitative bone collection material
Material implantation intervertenral space, the length and diameter of injection head can be divided into multiple types to adapt to different surgery situations, to reduce wound
Mouth length and position.
(2) setting of injection head increases the transplanting accuracy of bone grafting material, but injection head is be easy to cause to block, because
This, needs to be arranged inner push-rod and is dredged, and moving up and down for inner push-rod can drive extending and retracting for anti-plug, anti-plug
It can be along the axial movement of injection head, simultaneously because the diameter of anti-plug is less than injection head internal diameter, therefore can will be in injection head
The bone slag in portion is released, to prevent blocking inside injection head.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or the prior art will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that the push rod of the utility model moves down and anti-block apparatus works；
Fig. 3 is the long neck funnel structural schematic diagram of the utility model.
Wherein, 1- bone grafting cylinder, 101- cylinder, 102- rear end cap, 103- injection head, 2- injection rod, 201- slide push rod,
202- plunger, 203- tail cap, 3- inner push-rod, 301- push handle, 302- drive rod, 303- reset spring, the anti-plug of 304-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of syringe type bone grafting includes bone grafting cylinder 1, injection rod 2 and inner push-rod 3, in which: bone grafting cylinder 1
Structure is as shown in Fig. 2, bone grafting cylinder 1 includes the cylinder 101 at middle part and the rear end cap 102 and injection head that 101 both ends of cylinder are arranged in
103, slide opening is arranged in the middle part of rear end cap 102.To be detachably connected between cylinder 101, rear end cap 102 and injection head 103, cylinder
101 above and below be provided with external screw thread, the bottom interior wall of rear end cap 102 is provided with and the matched internal screw thread of external screw thread, injection head
103 top inner wall is provided with and the matched internal screw thread of external screw thread.
The structure of injection rod 2 is as shown in figure 3, injection rod 2 includes the slide push rod 201 at middle part and is separately positioned on sliding and pushes away
The plunger 202 and tail cap 203 at 201 both ends of bar, slide push rod 201 pass through slide opening, and slide push rod 201 is located inside bone grafting cylinder 1
One end is connected through a screw thread plunger 202, and the inner wall cooperation of plunger 202 and cylinder 101 seals, and slide push rod 201 is located at bone grafting cylinder 1
External one end is connected through a screw thread tail cap 203, tail cap 203 and slide push rod 201 and plunger 202 is internally provided in receiving
The through-hole of push rod 3.
It should be noted that through-hole includes coaxial arrangement transmission through-hole and end vias, transmission through-hole is for accommodating transmission
Bar, end vias is for accommodating anti-plug.The diameter of through-hole is greater than the diameter of slide push rod 201.
Specifically, injection rod 2 is also detachable structure, the both ends tapping of slide push rod 201, the top of slide push rod 201
External screw thread is connect with the internal screw thread at 203 middle part of tail cap, the internal screw thread at 202 middle part of bottom external screw thread and plunger of slide push rod 201
Connection.
As shown in figure 3, inner push-rod 3 installs word on injection rod 2, inner push-rod 3 includes push handle 301, is vertically mounted on and pushes away
The drive rod 302 of 301 bottom of handle and the anti-plug 304 being connected with 302 end of drive rod, in which: drive rod 302 and anti-
Plug 304 is mounted in through-hole, and reset spring 303 is provided between push handle 301 and tail cap 203.
When specific work, injection head 103 is unloaded according to hand of spiral first, then by ready bone grafting material
It is packed into inside cylinder 101, is slightly compacted, then injection head 103 is loaded onto according to hand of spiral, before the injection head 103 of bone grafting cylinder 1
Port connects with intervertenral space, is either pressed using small hammer to tail cap 203 with hand, bone grafting material is implanted to intervertebral
In gap.The utility model is easy to operate, convenient, and bone grafting position is accurate, can according to need accurate control bone grafting amount, bone grafting cylinder 1
It can be convenient quick quantization bone grafting, do not influence the operation of other surgical instruments in use process, can be used cooperatively very well with it.
Since reset spring 303 is pre-pressing setting, specific distance is kept between tail cap 203 and push handle 301, therefore anti-blocking
First 304 will not be stretched out by mistake.Only just it will use when injection head 103 is blocked.In use, pressing push handle 301, overcomes bullet
Successively drive drive rod 302 and anti-plug 304, anti-plug 304 that can stretch out along 103 internal holes of injection head after spring force, it will
Bone slag inside injection head 103 is released, to prevent from blocking inside injection head 103.
Specifically, injection head 103 is cylindric hollow structure, the bottom interior wall that injection head 103 is communicated with cylinder 101 is cone
Shape inner wall.The end of plunger 202 is pyramidal structure, and pyramidal structure and the conical inboard wall of injection head 103 can fit closely.
It should be noted that anti-plug 304 can be fitted closely at home position with the contact surface of plunger 202.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of syringe type bone grafting instrument characterized by comprising
One bone grafting cylinder, the bone grafting cylinder include the cylinder at middle part and rear end cap and injection head that the cylinder both ends are arranged in, institute
State the middle part setting slide opening of rear end cap；
One injection rod, the injection rod include middle part slide push rod and be separately positioned on the slide push rod both ends plunger and
Tail cap, the slide push rod pass through the slide opening, and one end that slide push rod is located inside bone grafting cylinder is connected through a screw thread described push away
The inner wall of plug, the plunger and the cylinder, which cooperates, to be sealed, and one end that slide push rod is located at outside bone grafting cylinder is connected through a screw thread
The tail cap, the tail cap and slide push rod and plunger are internally provided with through-hole；
One inner push-rod, the inner push-rod include push handle, the drive rod for being vertically mounted on the push handle bottom and with drive rod end
Hold the anti-plug being connected, in which: the drive rod and anti-plug are mounted in the through-hole, are set between the push handle and tail cap
It is equipped with reset spring.
2. syringe type bone grafting instrument according to claim 1, which is characterized in that the cylinder, rear end cap and injection head it
Between to be detachably connected, the cylinder is provided with external screw thread above and below, the bottom interior wall of the rear end cap be provided with it is described outer
The matched internal screw thread of screw thread, the top inner wall of the injection head are provided with and the matched internal screw thread of the external screw thread.
3. syringe type bone grafting instrument according to claim 2, which is characterized in that the injection head is cylindric hollow knot
Structure, the bottom interior wall that the injection head is communicated with cylinder are conical inboard wall.
4. syringe type bone grafting instrument according to claim 3, which is characterized in that the end of the plunger is pyramidal structure,
The conical inboard wall of the pyramidal structure and injection head can fit closely.
5. syringe type bone grafting instrument according to claim 4, which is characterized in that the through-hole includes that coaxial arrangement transmission is logical
Hole and end vias, the transmission through-hole is for accommodating the drive rod, and the end vias is for accommodating the anti-plug.
6. syringe type bone grafting instrument according to claim 5, which is characterized in that the diameter of the through-hole is greater than slide push rod
Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308330.7U CN209091589U (en) | 2018-08-15 | 2018-08-15 | A kind of syringe type bone grafting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308330.7U CN209091589U (en) | 2018-08-15 | 2018-08-15 | A kind of syringe type bone grafting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209091589U true CN209091589U (en) | 2019-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821308330.7U Active CN209091589U (en) | 2018-08-15 | 2018-08-15 | A kind of syringe type bone grafting instrument |
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| CN (1) | CN209091589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315806A (en) * | 2020-11-24 | 2021-02-05 | 江西钟山药业有限责任公司 | Capsule filling gun |
-
2018
- 2018-08-15 CN CN201821308330.7U patent/CN209091589U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315806A (en) * | 2020-11-24 | 2021-02-05 | 江西钟山药业有限责任公司 | Capsule filling gun |
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