CN208435855U - Absorbable screw and repairing fixator - Google Patents
Absorbable screw and repairing fixator Download PDFInfo
- Publication number
- CN208435855U CN208435855U CN201820016980.8U CN201820016980U CN208435855U CN 208435855 U CN208435855 U CN 208435855U CN 201820016980 U CN201820016980 U CN 201820016980U CN 208435855 U CN208435855 U CN 208435855U
- Authority
- CN
- China
- Prior art keywords
- screw
- area
- absorbable
- thread
- screw thread
- 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
Abstract
The utility model relates to absorbable screw and repairing fixators.The absorbable screw includes: body part, multiple protrusions, fixed part and tail portion；The tail portion is connect with the body part；The first area on the body part surface is arranged in the multiple protrusion, and the second area on the body part surface is arranged in the fixed part；The first area is far from the tail portion, and the second area is relative to the first area closer to the tail portion.The absorbable screw can enter tissue to be substantially perpendicular to the angle of tissue surface, and no skew does not shift.At the initial stage that hammers into, absorbable screw can be removed and to tissue without additional injury, will not cause secondary injury to tissue；Biodegradable absorbs, and eliminates nonabsorable material bring postoperative pain.
Description
Technical field
The utility model relates to medical instruments, and in particular to a kind of absorbable screw and repairing fixator.The absorbable screw energy
It is enough that medical patch is fixed in biological tissue, and the absorbable screw can be degraded by organism and absorb.The repairing fixator
Including the absorbable screw, and the repairing fixator is used to the absorbable screw being applied to medical patch and biological tissue.
Background technique
From stomach wall weak area or defect point bulging, medically known as hernia, hernia is the more of surgery for intraperitoneal organ or tissue
Morbidity and common disease.The weakness and defect of abdominal wall tissue caused by the various congenital and reason day after tomorrow are to lead to the cause of disease of hernia.Operation
Treatment is currently the only effective therapeutic modality.Tension-free hernioplasty is the chief surgical mode of current hernia.Tension-free is repaired
Mending art concept is that U.S. doctor Lichtenstein is proposed the 1980s first.It is this repairing using artificial material as
Rear wall of the sticking patch to reinforce groin pipe, this method not only strengthens the intensity of stomach wall weak area, and internally collar extension carries out
Remodeling, more overcome the interference of traditional operation normal tissue anatomical structure, it is well arranged, and repair after surrounding tissue without
Power.It is currently used to have sheet type tension-free hernia and Routkow IM Ribbins AW.Mesh plug hernia repair.With medical technology into
Step, the concept of tension-free hernioplasty are also no longer limited to the surgical intervention of indirect inguinal hernia, and this art formula is equally also cured by surgery
Teacher uses in the treatment to diseases such as Abdominal Incisional Hernia, pour hernie parastomiale, esophageal hiatal hernias, obtains good operation effect
Fruit, and the incidence of complication declines compared with traditional operation.In addition, as laparoscopic technique is in the high speed development of surgical field,
There is the herniorrhaphy under laparoscope, sticking patch made by material will be implanted into using laparoscope and be sent into vivo, to body weakness
Or defect is repaired and is enhanced.The recurrence rate of tension-free hernioplasty is decreased obviously compared with traditional operation.
It include at present the modes such as suture, fixing glue or medical adhesive for the fixed form of sticking patch.Using the method for fixing glue
It is more mature and widely used method.In method using the fixed sticking patch of fixing glue, sticking patch is first placed in affected part, then
Percussion repairing fixator sends out fixing glue, and sticking patch is fixed to affected part by fixing glue.Fixing glue includes metal nail and absorbable screw
Two major classes.However in metal nail Preserving time body, lasting postoperative pain will lead to, or even have to perform the operation again and take out these
Metal nail for fixing.With being continuously increased for absorbable material type, the continuous promotion of material property, absorbable screw makes
With then more and more extensive.Absorbable screw has enough intensity in the early stage, can stably keep sticking patch after implanting
Organizationally；With the variation of time, absorbable screw is gradually degraded, until being completely absorbed.
Existing absorbable screw includes Agnail type nail and drive screw.Agnail type nail, which has, is arranged in rivet nut barb structure, should fall
Thorn structure facilitates the stable fixation of fixing glue within the organization, the disengaging of anti-non-magnetic shim.But due to being widely dispersed in organizing
Blood vessel, although it is usually safety zone that selection, which hammers into the position of fixing glue, during Agnail type nail is hammered into tissue, still
The old possibility for leading to bleeding in the presence of damage blood vessel.For there is the case where bleeding, it is necessary to removal fixing glue first is stopped blooding, to
It is fixed again after the completion of hemostasis.It for Agnail type nail, is taken out since its special construction is unfavorable for nail, thus is taking out Agnail type nail
In the process, it will be enlarged by the wound surface of a wound, increase patient's pain.
Currently used tissue patch includes high molecular material sticking patch and biological sticking patch.High molecular material sticking patch is to utilize height
The flaky material that molecule yarn woven obtains has hole in sticking patch.It is fixed in the prior art using single thread fixing glue,
Used one kind single thread fixing glue front end is the oblique spine that single thread extends to form, and another kind of single thread fixing glue is then sharp
Form opening within the organization with drive rod, subsequent fixing glue screws in, thus these two types of fixing glues only include an inclined piercing
Point is tilted in penetrating sticking patch and organizational process and is pierced into, or due to being single screw thread, fixing glue receives slanting resistance and sends out
Raw skew.That is the axial direction of rivet nut and tissue surface vertical direction has angle.This tissue and the interaction of fixing glue make to fix
Nail run-off the straight in entering organizational process causes fixing glue is oblique to enter tissue, fixed effect is made to have a greatly reduced quality, and tilts thorn
The fixing glue entered is easy to fall off influence fixed effect.In addition, biological sticking patch, the biology especially made with cell epimatrix material
Sticking patch is more fine and close, is then unfavorable for vertically penetrating for nail using this kind of single thread fixing glue, exacerbates the inclined risk of fixing glue.
Utility model content
To solve the problems, such as said one or multiple, the utility model provides a kind of absorbable screw, and uses the absorbable screw
Repairing fixator.The absorbable screw can enter tissue, no skew to be substantially perpendicular to the angle of tissue surface.Accurately into
Enter point to be fixed, does not shift.At the initial stage that hammers into, absorbable screw can be removed and to tissue without additional injury, will not
Secondary injury is caused to tissue.Biodegradable absorbs, and eliminates nonabsorable material bring postoperative pain.
The utility model provides a kind of absorbable screw characterized by comprising body part, multiple protrusions, and fixed part,
And tail portion；The tail portion is connect with the body part；Firstth area on the body part surface is arranged in the multiple protrusion
The second area on the body part surface is arranged in domain, the fixed part；The first area is far from the tail portion, and described second
Region is relative to the first area closer to the tail portion.When screwing in tissue, multiple protrusions are to absorbable screw offer pair
The support force of title can enter tissue in a manner of being substantially perpendicular to tissue (such as stomach wall) surface, avoid or reduce
Absorbable screw screws in tissue in a manner of skew.After screwing in tissue, it is fixed to each other between fixed part and tissue, prevents fixing glue
It falls off.Tail portion is then used to sticking patch being fixed on tissue surface.
The multiple protrusion is about body part setting substantially symmetrical about its central axis, at least one of the multiple protrusion
Protrusion is connect with the fixed part.Connection between protrusion and fixed part can successfully guide tissue and fixed part phase
Mutually form fixed structure.
The protrusion is screw thread.
The fixed part is screw thread.
The multiple protrusion includes two screw threads, and the fixed part includes a screw thread；One in two screw threads
The threaded connection of screw thread and the fixed part.
Screw thread in the first area has the first screw pitch, and the screw thread in the second area has the second screw pitch, institute
It states twice that the second screw pitch is less than first screw pitch.
Screw thread in the first area has the first screw pitch, and the screw thread in the second area has the second screw pitch, institute
The second screw pitch is stated equal to first screw pitch.
The absorbable screw includes along axial through-hole；The through-hole inner surface is provided with screw thread or the through-hole
Cross section is non-circular.The drive rod of non-circular structure and repairing fixator cooperates, and drive rod can drive absorbable screw
It is mobile.
The body part body outer surface further includes third region, the third region be located at the second area with it is described
Between tail portion, the third region is not provided with fixed part.Caudad is leaned in the third region.Sticking patch has certain toughness, can absorb
The through-hole formed on sticking patch when the main part and fixed part of nail pass through sticking patch will bounce back, and be connected in third region, and consolidated by tail portion
Due to tissue surface.
The tail portion includes screw thread, and the screw thread of the tail portion is continuous or discontinuous.The discontinuous screw with
The guiding structure interaction for repairing fixator, realizes being rotationally advancing for absorbable screw.
The utility model also provides a kind of repairing fixator, which is characterized in that including absorbable screw described in any one；
The repairing fixator further includes guidance part and driving portion.
The utility model uses aforesaid way to enable absorbable screw to be substantially perpendicular to the entrance of the angle of tissue surface
Tissue, no skew.Accurately enter point to be fixed, does not shift.At the initial stage that hammers into, absorbable screw can be removed and to group
No additional injury is knitted, secondary injury will not be caused to tissue.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram according to the absorbable screw of the utility model first embodiment；
Fig. 2 is the side schematic view according to the absorbable screw of the utility model first embodiment；
Fig. 3 is the top view according to the absorbable screw of the utility model first embodiment；
Fig. 4 is the stereoscopic schematic diagram according to the absorbable screw of the utility model second embodiment；
Fig. 5 is the side schematic view according to the absorbable screw of the utility model second embodiment；
Fig. 6 is the side cross sectional views according to the absorbable screw of the utility model second embodiment；
Fig. 7 is the stereoscopic schematic diagram according to the absorbable screw of the utility model third embodiment；
Fig. 8 is the side view according to the absorbable screw of the utility model third embodiment；
Fig. 9 is the schematic cross-sectional view according to the repairing fixator guidance part of one embodiment of the utility model；
Figure 10 is the schematic cross-sectional view according to the repairing fixator guidance part of the utility model another embodiment.
Specific embodiment
Fig. 1 is the stereoscopic schematic diagram according to the absorbable screw of the utility model first embodiment；Fig. 2 is practical according to this
The side schematic view of the absorbable screw of novel first embodiment；Fig. 3 is inhaling according to the utility model first embodiment
Receive the top view of nail.Wherein the absorption fixing glue 100 includes main part 104, the first screw thread 101, the second screw thread 102, fixed spiral shell
Line 103 and the tail portion 105 being connect with main part 104.The outer surface of main part 104 can be basically classified into three regions,
Including first area 10, the second area 20 of tail portion and third region 30.First screw thread 101 and the second screw thread 102 are set to
In first area 10.Fixed thread 103 is set in the second area 20 of 104 outer surface of main part.Tail portion 105 and main part
104 connect, and are provided with screw thread 106 on tail portion 105, which is discontinuous.First screw thread 101 and the second screw thread 102
Spatially it is symmetrically disposed in the first area 10 of body outer surface.First screw thread 101 of first area 10 and the second screw thread
102 double threads constituted have the first screw pitch.Fixed thread 103 has the second screw pitch.
When screwing in tissue, the double thread that the first screw thread 101 and the second screw thread 102 are constituted can guide absorbable screw 100
It into tissue, and can be to absorb fixing glue 100 to provide symmetrical support force, the symmetrical support in tissue surface
Power can prevent or reduce the skew of absorbable screw 100, revolve absorbable screw 100 with the direction basically perpendicular to tissue surface
Enter tissue.
First area 10 can also be symmetrically arranged more a plurality of screw thread, for such absorbable screw, provide
Support force is distributed in more perspective, thus can equally guarantee the vertical screw-in tissue of fixing glue.Or it can be in the first screw thread
101 and the second guidance striped of setting between screw thread 102, to prevent or reduce 100 skew of absorbable screw.
The double thread that the first screw thread 101 and the second screw thread 102 in first area are constituted has the first screw pitch, second area
In fixed thread 103 have the second screw pitch.Screw pitch refers to distance of the corresponding points of two neighboring screw thread on axis.And along one
The distance that root screw thread rotation moves in the axial direction after a week is known as lead, and the length of a lead of single thread is equal to one
The length of screw pitch, and the length of a lead of double thread is equal to twice of pitch length.The screw thread equal for lead, no matter
Be list or double thread lead angle it is identical；And the double thread equal for screw pitch and single thread, due to the lead of double thread
Length is twice of screw pitch, at this point, the lead of double thread is twice of single thread lead.Thus, the double spiral shells equal for screw pitch
Line and single thread, the lift angle of double thread are greater than the lift angle of single thread.Lead angle then determines the resistance that screw advancement is encountered
And static rear and surrounding tissue the fixed effect of screw thread.Screw thread with more great-lift angle, precession fast speed are conducive to fast
Speed enters tissue；And the screw thread with smaller lift angle, the then fixation that intercouples being more advantageous between screw thread and tissue, it provides more
Big contact surface and bigger retentivity, being more advantageous to prevents toner screw.After thus the two is combined, double thread makes spiral shell
Line rapidly enters tissue to be substantially perpendicular to tissue plane direction, and single thread and double thread provide absorbable screw and group jointly
Retentivity between knitting is more advantageous to fixing glue for sticking patch and is fixed on tissue surface.To form good transition connection, effectively guide
Tissue is smooth between fixed thread 103 and the first screw thread 101 to be connected between screw thread.To guide tissue from double thread it
Between enter between single thread, and formed effectively fixed.
The double thread that first screw thread 101 and the second screw thread 102 are constituted is arranged in first area 10, and fixed thread 103 is set
It sets in second area 20.When the lead of fixed thread 103 is less than the lead of double thread, between fixed thread 103 and tissue
It is capable of providing bigger retentivity, fixed thread 103 and double thread, which complement each other to form, at this time can either rapidly enter tissue again
The structure of excellent retentivity can be provided.Preferably, the screw pitch of fixed thread 103 keeps the screw pitch phase with first area double thread
Together, 103 lead of fixed thread is the 1/2 of 101 lead of the first screw thread.That is, the screw pitch of screw thread is less than the firstth area in second area 20
Twice of the screw pitch of 10 double thread of domain, it is preferable that the screw pitch of screw thread is equal to the spiral shell of 10 double thread of first area in second area 20
Away from.
It can in case of the blood vessel in 100 injury tissue of absorbable screw for the absorbable screw 100 in the utility model
To see that tissue surface has bleeding.At this point, the absorbable screw can be taken out from tissue by reversely rotating absorbable screw 100
100.After being stopped blooding, the fixed sticking patch of absorbable screw is reused.It will not be generated in demolishing process by barb structure institute band
The secondary damage come.Since absorbable screw size is usually smaller, about 5-7 millimeters of length, the first screw thread 101 and the second screw thread 102
Length is shorter, may without being formed around one week screw thread of axis, but the screw pitch between screw thread can by their extension line come
It obtains.
When first area screw thread quantity be greater than two when, due to screw pitch under the same conditions, the more leads of screw thread quantity
Bigger, lead angle is bigger.The case where being thus greater than two screw threads for first area setting, the screw thread quantity of second area is only
It is less than the quantity of first area screw thread, and keeps thread pitch in two regions identical, second area is just capable of providing bigger
The retentivity between tissue.
Absorbable screw is used to sticking patch being fixed on tissue (such as stomach wall), organize at this time because the screw-in of absorbable screw and
There is wound.Since tissue has self-healing function, the tissue of recovery can form stable clamping between fixing glue, to make
Absorbable screw is fixed in tissue, it is thus possible to keep fixation of the sticking patch at tissue.Hereafter, as time increases, may be used
Nail degradation is absorbed, sticking patch is can absorb and also degrades in bearing.
First screw thread 101 and the second screw thread 102 can guide absorbable screw 100 to enter tissue, when absorbable screw 100 enters
When organizing and being fixed in tissue, the first screw thread 101 and the second screw thread 102 can equally play fixed function.First screw thread 101
Also could alternatively be the symmetrically arranged striped relative to 104 protrusion of surface of main part with the second screw thread 102, the striped relative to
The axial direction of main part 104 is obliquely installed, thus can equally be played guidance absorbable screw and be entered in vivo and provide part admittedly
Determine the effect of retentivity.
Fig. 9 is the schematic cross-sectional view according to the repairing fixator guidance part of one embodiment of the utility model.Guidance part
In be provided with braking plate and spring guide rail, braking plate pushes absorbable screw rotation, the screw thread of 100 tail portion 105 of absorbable screw
106 interact with spring guide rail, make absorbable screw Forward rotational movement, pass through sticking patch and enter tissue, and sticking patch is fixed
In biological tissue.Repairing fixator further includes driving portion, which can be used for driving the braking plate.
Fig. 4 is the stereoscopic schematic diagram according to the absorbable screw of the utility model second embodiment；Fig. 5 is practical according to this
The side schematic view of the absorbable screw of novel second embodiment；Fig. 6 is inhaling according to the utility model second embodiment
Receive the side cross sectional views of nail.Wherein the absorption fixing glue 200 includes main part 204, the first screw thread 201, the second screw thread
202, fixed thread 203 and the tail portion 205 being connect with main part 204.The outer surface of main part 204 can be basically classified into
Three regions, including first area 10, the second area 20 of tail portion and third region 30.First screw thread 201 and the second screw thread
202 are set in first area 10.Fixed thread 203 is set in the second area 20 of 204 outer surface of main part.Tail portion 205
It is connect with main part 204.First screw thread 201 and the second screw thread 202 are spatially symmetrically disposed in the firstth area of body outer surface
Domain 10.The double thread that first screw thread 201 of first area 10 and the second screw thread 202 are constituted has the first screw pitch.Fixed thread 203
With the second screw pitch.
When screwing in tissue, the double thread that the first screw thread 201 and the second screw thread 202 are constituted can guide absorbable screw 200
It into tissue, and can be to absorb fixing glue 200 to provide symmetrical support force, the symmetrical support in tissue surface
Power can prevent or reduce the skew of absorbable screw 200, revolve absorbable screw 200 with the direction basically perpendicular to tissue surface
Enter tissue.
More a plurality of screw thread can also be arranged in first area 10, for such absorbable screw, the support force of offer
It is distributed in more perspective, thus can equally guarantee the vertical screw-in tissue of fixing glue.Or it can be in the first screw thread 201 and
Setting guidance striped between two screw threads 202, to prevent or reduce 200 skew of absorbable screw.
The double thread that the first screw thread 201 and the second screw thread 202 in first area are constituted has the first screw pitch, second area
In fixed thread 203 have the second screw pitch.It is smooth between fixed thread 203 and the first screw thread 201 to be connected.To guide tissue
Enter between single thread between double thread, and is formed effectively fixed.
The double thread that first screw thread 201 and the second screw thread 202 are constituted is arranged in first area 10, and fixed thread 203 is set
It sets in second area 20.When the lead of fixed thread 203 is less than the lead of double thread, between fixed thread 203 and tissue
It is capable of providing bigger retentivity, fixed thread 203 and double thread, which complement each other to form, at this time can either rapidly enter tissue again
The structure of excellent retentivity can be provided.Preferably, the screw pitch of fixed thread 203 keeps the screw pitch phase with first area double thread
Together, 203 lead of fixed thread is the 1/2 of 201 lead of the first screw thread.That is, the screw pitch of screw thread is less than the firstth area in second area 20
Twice of the screw pitch of 10 double thread of domain, it is preferable that the screw pitch of screw thread is equal to the spiral shell of 10 double thread of first area in second area 20
Away from.
First screw thread 201 and the second screw thread 202 can guide absorbable screw 200 to enter tissue, when absorbable screw 200 enters
When organizing and being fixed in tissue, the first screw thread 201 and the second screw thread 202 can equally play fixed function.First screw thread 201
Also could alternatively be the symmetrically arranged striped relative to 204 protrusion of surface of main part with the second screw thread 202, the striped relative to
The axial direction of main part 204 is obliquely installed, and can equally play the role of guidance and fixed absorbable screw.
Absorbable screw 200 has axial through-hole, which has screw thread 207.The screw thread and repairing fixator
Screw thread interaction on the driving rod outer surface of guidance part, the drive rod for repairing fixator pushes absorbable screw to advance, and revolves
Turn to hammer into tissue.Figure 10 is the schematic cross-sectional view according to the repairing fixator guidance part of the utility model another embodiment.
Drive rod 1001 is provided in guidance part, the screw thread and through-hole inner surface screw thread 207 on 1001 surface of drive rod interact, promote
Absorbable screw 200 is rotationally advancing.
Fig. 7 is the stereoscopic schematic diagram according to the absorbable screw of the utility model third embodiment；Fig. 8 is practical according to this
The side schematic view of the absorbable screw of novel third embodiment.Wherein the absorption fixing glue 300 includes main part 304, first
Screw thread 301, the second screw thread 302, fixed thread 303 and the tail portion 305 being connect with main part 304.The appearance of main part 304
Face can be basically classified into three regions, including first area 10, the second area 20 of tail portion and third region 30.First
Screw thread 301 and the second screw thread 302 are set in first area 10.Fixed thread 303 is set to the second of 304 outer surface of main part
In region 20.Tail portion 305 is connect with main part 304.First screw thread 301 and the second screw thread 302 are spatially symmetrically disposed in master
The first area 10 of external surface.The double thread that first screw thread 301 of first area 10 and the second screw thread 302 are constituted has first
Screw pitch.Fixed thread 303 has the second screw pitch.Tail portion 105 is connect with main part 104, and screw thread 306 is provided on tail portion 305.
When screwing in tissue, the double thread that the first screw thread 301 and the second screw thread 302 are constituted can guide absorbable screw 300
It into tissue, and can be to absorb fixing glue 300 to provide symmetrical support force, the symmetrical support in tissue surface
Power can prevent or reduce the skew of absorbable screw 300, revolve absorbable screw 300 with the direction basically perpendicular to tissue surface
Enter tissue.
More a plurality of screw thread can also be arranged in first area 10, for such absorbable screw, the support force of offer
It is distributed in more perspective, thus can equally guarantee the vertical screw-in tissue of fixing glue.Or it can be in the first screw thread 301 and
Setting guidance striped between two screw threads 302, to prevent or reduce 300 skew of absorbable screw.
The double thread that the first screw thread 301 and the second screw thread 302 in first area are constituted has the first screw pitch, second area
In fixed thread 303 have the second screw pitch.It is smooth between fixed thread 303 and the first screw thread 301 to be connected.To guide tissue
Enter between single thread between double thread, and is formed effectively fixed.
The double thread that first screw thread 301 and the second screw thread 302 are constituted is arranged in first area 10, and fixed thread 303 is set
It sets in second area 20.When the lead of fixed thread 303 is less than the lead of double thread, between fixed thread 303 and tissue
Be capable of providing bigger retentivity, at this time fixed thread 303 and double thread complement each other to form can either quickly and vertically into
Enter tissue and the structure of excellent retentivity can be provided.Preferably, the screw pitch of fixed thread 303 is kept and first area double thread
Screw pitch is identical, and 303 lead of fixed thread is the 1/2 of 301 lead of the first screw thread.That is, the screw pitch of screw thread is less than in second area 20
Twice of the screw pitch of 10 double thread of first area, it is preferable that the screw pitch of screw thread is equal to the spiral shell of first area 10 pairs in second area 20
The screw pitch of line.
Absorbable screw 300 has axial through-hole, and the cross section of through-hole is non-circular shape, is provided on tail portion 305
Screw thread 306.Due to through-hole section be it is non-circular, by the cooperation of the drive rod with respective cross-section shape, drive rod can make
Absorbable screw 300 rotates, while the screw thread 306 on tail portion 305 and repairing fixator upper spring guide rail interaction, makes solid
Fixed nail travels forward.
The used material of absorbable screw includes polylactic acid (PLA), polyglycolic acid (PGA), hydroxyacetic acid-lactic acid copolymer
(PLGA) degradable high polymer materials or their mixture such as.Absorbable screw surface can coat lubricant coating to reduce
Frictional resistance between sticking patch or tissue facilitates absorbable screw and enters tissue, and lubricant coating may include collagen, aliphatic
Polyester, poly- (amino acid), copolymerization (ether-ester), polyoxyalkylene oxalates, polyamide or their mixture.Absorbable screw surface
Antibacterial material can also be coated, to prevent to infect.
The above embodiments of the present invention is the explanation to the utility model and cannot be used for limitation the utility model, with
Any variation in the comparable meaning and scope of claims of the utility model, is all considered as being included in claims
In the range of.
Claims (16)
1. a kind of absorbable screw characterized by comprising
Body part, multiple protrusions, fixed part and tail portion；The tail portion is connect with the body part；
The first area on the body part surface is arranged in the multiple protrusion, and the fixed part is arranged in the body part table
The second area in face；The first area is far from the tail portion, and the second area is relative to the first area closer to institute
State tail portion.
2. absorbable screw according to claim 1, which is characterized in that the multiple protrusion is about the body part center
Axial symmetry is arranged, at least one protrusion in the multiple protrusion is connect with the fixed part.
3. absorbable screw according to claim 1 or 2, which is characterized in that the protrusion is screw thread.
4. absorbable screw according to claim 1 or 2, which is characterized in that the fixed part is screw thread.
5. absorbable screw according to claim 3, which is characterized in that the fixed part is screw thread.
6. absorbable screw according to claim 5, which is characterized in that the multiple protrusion includes two screw threads, described
Fixed part includes a screw thread；The threaded connection of a screw thread and the fixed part in two screw threads.
7. absorbable screw according to claim 5, which is characterized in that the screw thread in the first area has the first spiral shell
Away from the screw thread in the second area has the second screw pitch, and second screw pitch is less than twice of first screw pitch.
8. absorbable screw according to claim 5, which is characterized in that the screw thread in the first area has the first spiral shell
Away from the screw thread in the second area has the second screw pitch, and second screw pitch is equal to first screw pitch.
9. absorbable screw according to claim 6, which is characterized in that the screw thread in the first area has the first spiral shell
Away from the screw thread in the second area has the second screw pitch, and second screw pitch is less than twice of first screw pitch.
10. absorbable screw according to claim 6, which is characterized in that the screw thread in the first area has the first spiral shell
Away from the screw thread in the second area has the second screw pitch, and second screw pitch is equal to first screw pitch.
11. according to claim 1,2, absorbable screw described in any one of 6-8, which is characterized in that the absorbable screw packet
It includes along axial through-hole；It is non-circular that the through-hole inner surface, which is provided with screw thread or the cross section of the through-hole,.
12. according to claim 1, absorbable screw described in any one of 2,6 or 7, which is characterized in that the body part appearance
Face further includes third region, and between the second area and the tail portion, the third region is not set in the third region
Set fixed part.
13. absorbable screw according to claim 11, which is characterized in that the body part outer surface further includes third area
Domain, between the second area and the tail portion, the third region is not provided with fixed part in the third region.
14. according to claim 1,2, absorbable screw described in any one of 6-8, which is characterized in that the tail portion includes spiral shell
Line, the screw thread of the tail portion are continuous or discontinuous.
15. absorbable screw according to claim 12, which is characterized in that the tail portion includes screw thread, the institute of the tail portion
It is continuous or discontinuous for stating screw thread.
16. a kind of repairing fixator, which is characterized in that including being can absorb described according to claim 1 any one of -15
Nail；The repairing fixator further includes guidance part and driving portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016980.8U CN208435855U (en) | 2018-01-05 | 2018-01-05 | Absorbable screw and repairing fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016980.8U CN208435855U (en) | 2018-01-05 | 2018-01-05 | Absorbable screw and repairing fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208435855U true CN208435855U (en) | 2019-01-29 |
Family
ID=65096224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820016980.8U Active CN208435855U (en) | 2018-01-05 | 2018-01-05 | Absorbable screw and repairing fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208435855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108066041A (en) * | 2018-01-05 | 2018-05-25 | 北京博辉瑞进生物科技有限公司 | Absorbable plate and repairing fixator |
-
2018
- 2018-01-05 CN CN201820016980.8U patent/CN208435855U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108066041A (en) * | 2018-01-05 | 2018-05-25 | 北京博辉瑞进生物科技有限公司 | Absorbable plate and repairing fixator |
| CN108066041B (en) * | 2018-01-05 | 2024-04-16 | 北京博辉瑞进生物科技有限公司 | Absorbable nail and repair fixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017261502B2 (en) | Improved suture | |
| US6264677B1 (en) | Wedge screw suture anchor | |
| CN103068324B (en) | Have cut maintenance thorn from retention system | |
| CA2562061C (en) | Stent for avascular meniscal repair and regeneration | |
| FI109655B (en) | Interference screw for surgical purposes | |
| US8636767B2 (en) | Surgical sutures having increased strength | |
| US9414876B2 (en) | Composite fixation device | |
| CA2758963C (en) | Rotary tack | |
| CN103096815A (en) | Surface texture configuration for self-retaining sutures and methods for forming same | |
| ES2562475T3 (en) | Flocked surgical suture and methods for its production | |
| CN208435855U (en) | Absorbable screw and repairing fixator | |
| JP2022536821A (en) | Suture, suturing device and its application | |
| CN108066041A (en) | Absorbable plate and repairing fixator | |
| CN206761720U (en) | A kind of absorbable tissue closes fixator | |
| CN212729953U (en) | Absorbable suture anchor with dual fixing effect | |
| CN211066815U (en) | Round sheath multi-suture anchor and implantation device | |
| CN211155987U (en) | Absorbable anchoring device | |
| CN217827962U (en) | Barb structure can absorb area line anchor nail | |
| CN216724633U (en) | Anchor with wire | |
| CN206745400U (en) | The board-like type tendon stapler of absorbable watt co-clip | |
| CN209172476U (en) | Stop screw and the intramedullary nail with the blocking screw | |
| Megahed | Cyanoacrylate Glue Versus Suture Fixation of Mesh in Adult Inguinal Hernioplasty | |
| CN116173285A (en) | Biodegradable vascular embolism body | |
| Ingle et al. | Biotextiles as medical implants: 13. Barbed suture technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |