CN214761409U - Multi-direction uniform bone grafting funnel for bone grafting fusion - Google Patents
Multi-direction uniform bone grafting funnel for bone grafting fusion Download PDFInfo
- Publication number
- CN214761409U CN214761409U CN202120513582.9U CN202120513582U CN214761409U CN 214761409 U CN214761409 U CN 214761409U CN 202120513582 U CN202120513582 U CN 202120513582U CN 214761409 U CN214761409 U CN 214761409U
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- bone grafting
- bone
- funnel
- fusion
- passage
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 128
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Abstract
The utility model relates to the field of medical equipment, specifically disclose plant multi-direction even bone grafting funnel of bone fusion, the bone grafting funnel is upper and lower open-ended hollow structure, and it includes open hopper chamber and passage, sets up the side opening of a plurality of and the inside intercommunication of passage on the wall that the passage is close to the afterbody, and the afterbody of passage has the transition portion that is the undergauge form, and the side opening all sets up on the transition portion. The utility model discloses set up the side opening of a plurality of and the inside intercommunication of passage on the wall that the passage is close to the afterbody, it is great when the defective part of bone chamber, when planting the bone operation, the bone grain can be followed the side opening and discharged except can following the afterbody hole discharge of passage, can fill the part in the afterbody hole outside from the bone grain of side opening discharge, consequently the utility model discloses can be applicable to the bone grafting operation when the defective part of bone chamber is great.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to plant multi-direction even bone grafting funnel of bone fusion.
Background
In recent years, the number of cases of high-energy and low-violence injuries to the spine and fractures of the thoracolumbar spine have increased, and fractures of the thoracolumbar spine are the most common in spinal fractures. Thoracolumbar fracture refers to the continuous destruction of thoracolumbar bone due to external force, and in young and middle-aged patients, high-energy injury is the main injury factor, such as car accidents, high-altitude falling injury, and the like. Old patient is because there is osteoporosis itself, and it is low violent damage to cause the factor to be mostly, if slip, tumble etc. the reason of coming back is because chest lumbar region is the physiology kyphosis of thoracic vertebra and the physiology lordosis of lumbar vertebrae portion of moving, and the activity is big, receives very strong stress, and when the backbone received powerful violence, the fracture appeared easily in the centrum here. In the treatment of thoracolumbar fractures, reconstruction of spinal stability is an important issue for surgical treatment of the spine. Because the bone mass is lost after the centrum compression fracture, can form "empty eggshell" phenomenon after the centrum struts to reset, and the space in the centrum can only be organized by the blood clot, and fibrous tissue fills, only can play interim fixed action, does not have real heavy burden ability, consequently to the patient of chest lumbar vertebrae fracture, not only will reset the fracture, resume its anatomical structure, still need adopt to plant the bone and fuse the operation treatment and just can maintain the backbone stable.
The bone grafting fusion operation is to enter a bone grafting part of a bone to be implanted through a nail hole, the diameter of the nail hole is very small, the bone grafting fusion operation is difficult to realize if the bone grafting fusion operation is not carried out by means of a tool for inputting bone particles (generally adopting autologous broken bones of a patient), when bone grafting is carried out, bone grafting is often carried out on two bone structures at the same time, and the current technology is difficult to realize.
The bone grafting funnel is mainly used in bone grafting fusion operations of thoracolumbar fracture, thoracolumbar lateral curvature, spinal stenosis, intervertebral disc slippage, intervertebral disc protrusion and other diseases, belongs to the technical field of surgical instruments, and is used for grafting bones at vertebral joints and intervertebral through thoracolumbar anterior and posterior operations, so that bony combination occurs between the joints of the thoracolumbar vertebrae, and the stability of the thoracolumbar vertebrae is established.
Bone grafting funnel mainly includes funnel part and bone grafting stick, when bone grafting fuses the operation, accomodates the bone grain in the funnel intracavity of funnel part, uses the bone grafting stick to let in the passage guide of funnel part, forces the bone grain to discharge from passage guide afterbody opening to accomplish the bone grafting operation. When the bone grafting fusion operation is carried out in the prior art, the bone particles can only be discharged from the tail hole of the guide pipe, the discharged bone particles are mainly concentrated at the tail hole of the guide pipe, when the defect range in the bone cavity is large, the defect part of the bone cavity can not be completely filled with the discharged bone particles in multiple angles, so that the stability of the postoperative vertebral body of a patient or the healing of fracture are influenced, the effect of bone grafting fusion and the rehabilitation of the patient are influenced, and therefore the bone grafting funnel in the prior art can not be suitable for the defect in the bone cavity in a large range.
SUMMERY OF THE UTILITY MODEL
The utility model provides a plant multi-direction even bone grafting funnel of bone fusion to the defective bone grafting operation of the great scope in adaptation bone chamber is not enough to above-mentioned prior art.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the multi-direction even bone grafting funnel of bone grafting fusion, bone grafting funnel is upper and lower open-ended hollow structure, and it includes open funnel chamber and passage, set up the side opening of a plurality of and the inside intercommunication of passage on the wall that the passage is close to the afterbody.
Furthermore, the tail part of the material guide pipe is provided with a reducing transition part, and the side holes are all arranged on the transition part.
Further, the side hole is obliquely arranged downwards, and the inner end of the side hole is closer to the hopper cavity than the outer end of the side hole.
Further, the side holes are arranged in groups and are uniformly distributed along the circumferential direction of the material guide pipe.
Further, smooth transition is adopted between the hole end of the side hole and the inner side wall or/and the outer side wall of the material guide pipe.
Furthermore, the guide pipe is detachably sleeved with a side hole plugging sleeve for plugging the side hole outside the transition part.
Further, be equipped with two stop pins on the outer wall of passage, set up two guide way that correspond the setting with the stop pin on the telescopic lateral wall of side opening shutoff, guide way includes axial section and segmental arc, the stop pin can with guide way sliding fit, block into the segmental arc of guide way through the stop pin and realize the locking between side opening shutoff sleeve and the passage.
Furthermore, an opening at the tail end of the material guide pipe is an inclined cone opening.
Further, the bone grafting device also comprises a bone grafting rod, wherein the outer wall of the tail end of the bone grafting rod is matched with the shape of the inner wall of the transition part of the material guide pipe.
Further, a handle rod is fixed on the outer wall of the funnel cavity, and handles convenient to hold are fixed at the far end of the handle rod and the head end of the bone grafting rod.
The beneficial effects of the utility model reside in that:
1. the utility model discloses set up the side opening of a plurality of and the inside intercommunication of passage on the wall that the passage is close to the afterbody, it is great when the defective part of bone chamber, when planting the bone operation, the bone grain can be followed the afterbody hole discharge of passage except, can follow the side opening discharge, can fill the part in the afterbody hole outside from the bone grain of side opening discharge, consequently the utility model discloses can be applicable to the bone grafting operation when the defective part of bone chamber is great, be favorable to improving the bone grafting quality.
2. When the defective part of bone cavity is less, the bone grain need not to discharge through the side opening, carries out the shutoff to the side opening through side opening shutoff sleeve, and the afterbody hole discharge only can be followed to the bone grain this moment, consequently the utility model discloses also can be applicable to the bone grafting operation when the defective part of bone cavity is less simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Figure 2 is a longitudinal cross-sectional view of the funnel of figure 1.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Figure 4 is a schematic view of the side hole plugging sleeve of figure 1.
Wherein the reference numerals include: the bone grafting rod 1, the funnel 2, the funnel cavity 21, the guide pipe 22, the transition part 220, the side hole 2200, the locking pin 221, the handle rod 23, the side hole blocking sleeve 3, the guide channel 30, the axial section 301 and the arc section 302.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1-3, the bone grafting fusion multidirectional uniform bone grafting funnel comprises a funnel 2 and a bone grafting rod 1, wherein the funnel 2 is a hollow structure with an upper opening and a lower opening, and comprises an open funnel cavity 21 and a material guide pipe 22. A handle rod 23 is fixed on the outer wall of the funnel cavity 21, and a handle convenient to hold is fixed on the far end of the handle rod 23 and the head of the bone grafting rod 1.
The tail part of the material guiding pipe 22 is provided with a reducing transition part 220, the diameter of the transition part 220 is gradually reduced along the direction far away from the funnel cavity 21 and is arc-shaped, and the outer wall of the tail end of the bone grafting rod 1 is matched with the shape of the inner wall of the transition part 220 of the material guiding pipe 22. And the tail end of the guiding tube 22 is constructed in a tapered shape, which facilitates the insertion of the guiding tube 22 into the defective bone cavity. The transition portion 220 has a wall formed with a plurality of side holes 2200 communicating with the inside of the guide tube 22. The side holes 2200 are arranged in groups and uniformly distributed along the circumferential direction of the guide tube 22, and each group includes at least two side holes 2200 axially distributed along the guide tube 22. The side hole 2200 is disposed in an inclined downward posture relative to the axial direction of the material guiding tube 22, that is, the inner end of the side hole 2200 is closer to the funnel cavity 21 than the outer end, so that bone particles can enter the side hole 2200 more easily, and smooth transitions are adopted between the inner end of the side hole 2200 and the inner wall of the material guiding tube 22 and between the outer end of the side hole 2200 and the outer wall of the material pouring tube, so as to further reduce the resistance of the bone particles entering the side hole 2200 from the inner end and being discharged from the outer end.
A side hole plugging sleeve 3 for plugging a side hole 2200 is detachably sleeved outside the transition portion 220 of the material guiding tube 22, as shown in fig. 4, the side hole plugging sleeve 3 also includes a cylindrical section and a reducing section, and the inner wall of the reducing section of the side hole plugging sleeve 3 is matched with the outer wall of the transition portion 220 of the material guiding tube 22 in shape. The specific manner of detachable connection between the side hole-blocking sleeve 3 and the transition portion 220 of the guide tube 22 is as follows: two locking pins 221 are fixed on the outer wall of the cylindrical section of the material guide tube 22, the two locking pins 221 are symmetrically arranged, two guide channels 30 which correspond to the locking pins 221 are arranged on the side wall of the side hole plugging sleeve 3, each guide channel 30 comprises an axial section 301 and an arc-shaped section 302, the locking pins 221 can be in sliding fit with the guide channels 30, and the locking pins 221 are clamped into the arc-shaped sections 302 of the guide channels 30 to lock the side hole plugging sleeve 3 and the material guide tube 22.
The utility model discloses bone grafting operation when the defective part of bone cavity is less as follows: firstly, the side hole plugging sleeve 3 is sleeved on the tail part of the material guide tube 22, and the operation is that the head end of the side hole plugging sleeve 3 is aligned with the tail end of the transition part 220 of the material guide tube 22, two locking pins 221 on the material guide tube 22 are respectively clamped into axial sections 301 of two guide channels 30 on the side hole plugging sleeve 3, then the side hole plugging sleeve 3 is pushed upwards to the limit position, then the side hole plugging sleeve 3 is rotated, so that the two locking pins 221 on the material guide tube 22 are respectively clamped into arc sections 302 of the two guide channels 30 on the side hole plugging sleeve 3, and therefore locking between the side hole plugging sleeve 3 and the tail part of the material guide tube 22 is achieved. When planting the bone operation to the patient, accomodate proper amount bone grain in funnel chamber 21, plant bone stick 1 and promote the bone grain and remove in passage 22, force the bone grain to discharge by the afterbody hole opening of passage 22, implant the bone grain in the bone cavity defect department to the operation demand to tamp with planting bone stick 1, thereby accomplish and plant the bone. Because when the bone grafting operation, the afterbody hole discharge of passage 22 only can be followed to the bone grain, consequently the utility model discloses can be applicable to the bone grafting operation when the defective part of bone cavity is less.
The bone grafting operation of the utility model when the defect part of the bone cavity is bigger is as follows: pull down from the passage 22 afterbody with side opening shutoff sleeve 3 sleeve, when planting the bone operation to the patient, the bone grain except can discharging from passage 22's afterbody hole opening, can also discharge from side opening 2200, can fill the part in the afterbody hole outside from side opening 2200 discharged bone grain, except the implantation that can carry out the direction of depth promptly, can also carry out the circumference in step and implant, bone cavity defect part is filled up to complete multi-angle, improve the bone grafting effect greatly, be particularly useful for the bone grafting operation when bone cavity defect part is great. In addition, since the transition portion of the guide tube 22 has a reduced diameter shape, when bone particles are present in the transition portion, the reduced diameter structure enables the bone particles to be more easily discharged from the side holes 2200 than in the straight tubular structure.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the technical scope of the present invention, and the technical scope of the present invention is also considered to fall into the protection scope of the present application.
Claims (10)
1. Plant multi-direction even bone grafting funnel of bone fusion, bone grafting funnel is upper and lower open-ended hollow structure, and it includes open funnel chamber and passage, its characterized in that, the side opening of a plurality of and the inside intercommunication of passage is seted up on the wall that the passage is close to the afterbody.
2. The multi-directional uniform bone grafting funnel for bone grafting fusion according to claim 1, wherein the tail part of the guide tube has a reducing transition part, and the side holes are all arranged on the transition part.
3. The multi-directional uniform bone grafting funnel for bone grafting fusion according to claim 2, wherein the side hole is obliquely arranged downwards, and the inner end of the side hole is closer to the funnel cavity than the outer end of the side hole.
4. The bone fusion implantation multidirectional uniform bone grafting funnel according to claim 3, wherein the side holes are arranged in groups and are uniformly distributed along the circumferential direction of the guide tube.
5. The bone grafting fusion multidirectional uniform bone grafting funnel according to claim 4, wherein smooth transition is adopted between the hole end of the side hole and the inner side wall or/and the outer side wall of the guide pipe.
6. The bone fusion implantation multidirectional uniform bone grafting funnel according to any one of claims 1 to 5, wherein a side hole plugging sleeve for plugging the side hole is detachably sleeved on the guide pipe outside the transition part.
7. The multi-direction uniform bone grafting funnel for bone fusion implantation according to claim 6, wherein two locking pins are arranged on the outer wall of the guide tube, two guide channels corresponding to the locking pins are arranged on the side wall of the side hole plugging sleeve, each guide channel comprises an axial section and an arc section, the locking pins can be in sliding fit with the guide channels, and the locking between the side hole plugging sleeve and the guide tube is realized by the locking pins clamped into the arc sections of the guide channels.
8. The multi-directional uniform bone grafting funnel for bone grafting fusion according to claim 6, wherein the opening at the tail end of the material guiding tube is an oblique cone mouth.
9. The bone grafting fusion multidirectional uniform bone grafting funnel according to claim 6, further comprising a bone grafting rod, wherein the outer wall of the tail end of the bone grafting rod is matched with the shape of the inner wall of the transition part of the material guide pipe.
10. The multi-directional uniform bone grafting funnel for bone grafting fusion according to claim 9, wherein a handle rod is fixed on the outer wall of the funnel cavity, and a handle convenient to hold is fixed on each of the far end of the handle rod and the head end of the bone grafting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120513582.9U CN214761409U (en) | 2021-03-08 | 2021-03-08 | Multi-direction uniform bone grafting funnel for bone grafting fusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120513582.9U CN214761409U (en) | 2021-03-08 | 2021-03-08 | Multi-direction uniform bone grafting funnel for bone grafting fusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214761409U true CN214761409U (en) | 2021-11-19 |
Family
ID=78664937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120513582.9U Expired - Fee Related CN214761409U (en) | 2021-03-08 | 2021-03-08 | Multi-direction uniform bone grafting funnel for bone grafting fusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214761409U (en) |
-
2021
- 2021-03-08 CN CN202120513582.9U patent/CN214761409U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |