CN107898491A - Safety-type puncture core - Google Patents
Safety-type puncture core Download PDFInfo
- Publication number
- CN107898491A CN107898491A CN201711329320.1A CN201711329320A CN107898491A CN 107898491 A CN107898491 A CN 107898491A CN 201711329320 A CN201711329320 A CN 201711329320A CN 107898491 A CN107898491 A CN 107898491A
- Authority
- CN
- China
- Prior art keywords
- puncture
- outer tube
- puncturing
- push rod
- locking
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims description 46
- 230000037431 insertion Effects 0.000 claims description 46
- 229920001971 elastomer Polymers 0.000 claims description 35
- 239000000806 elastomer Substances 0.000 claims description 35
- 230000001737 promoting effect Effects 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007912 intraperitoneal administration Methods 0.000 description 4
- 210000002784 stomach Anatomy 0.000 description 4
- 210000000683 abdominal cavity Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 208000005646 Pneumoperitoneum Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
- A61B17/3496—Protecting sleeves or inner probes; Retractable tips
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to one kind to puncture core, and especially a kind of safety-type puncture core, belongs to the technical field of medical instrument.According to technical solution provided by the invention, the safety-type puncture core, including the outer tube for puncturing body and being sleeved on the puncture body head, the head end for puncturing body sets the puncture tip of puncture, outer tube can move on the head for puncturing body along the length direction for puncturing body, when outer tube is with puncturing body relative motion, puncture tip can be exposed from the head end of outer tube；The sleeve movement driving mechanism of outer tube movement is promoted when being additionally included in puncture tip break-through penetrating area and for locking outer tube and puncturing the cannula lock mechanism of location status between body；The present invention is compact-sized, can meet the needs of puncturing, and can realize protection after piercing, and use is easy to operate, securely and reliably.
Description
Technical field
The present invention relates to one kind to puncture core, and especially a kind of safety-type puncture core, belongs to the technical field of medical instrument.
Background technology
Checked in abdominal cavity, in abdominal operation and other minimally invasive or surgical operations, puncture outfit is essential operating theater instruments.
Puncture outfit can be established in the stomach wall of human body enters passage, and to supply laparoscope or other operating theater instruments, (such as endoscope, cut
Knife, stapler, seal wire, conduit, filter, stent etc.) enter passage intraperitoneal, and that gas disengaging is provided, to control operation institute
The pneumoperitoneum needed, to be checked or surgical procedure.When minimally invasive laparoscopic medical performs the operation beginning, doctor is general first in patient's abdomen
Portion scratches a small notch, then the small notch that the vertex alignment of cutting tip is scratched firmly pierces through stomach wall, and two are filled with to intraperitoneal
Carbon oxide gas manufacture laparoscopic surgery cavity.
The puncture core assembly of the prior art, the separated structure of cutting tip are generally sheet-like structure, and both sides are sharp shape
State, reciprocating rotation puncture outfit during puncture, left and right reciprocating rotation while, move down.When the moment for puncturing stomach wall, because inertia
Active force, surgical doctor is difficult to stop, slightly imprudent, and it is too deep that sharp puncturing head will be pierced into abdominal cavity, causes intestinal tube to break
Split, even angiorrhoxis, cause the complication such as enterobrosis, bleeding, or even threat to life.There is this during clinical various regions endoscope-assistant surgery
Class event occurs, and it is unfavorable to be brought to endoscope-assistant surgery popularization, threatens to patient safety.
Clinic needs a kind of abdominal cavity puncture outfit, and when piercing stomach wall, sharp keen puncturing head is retracted into outer tube at once,
Avoid causing damage to intra-abdominal organ, internal organs or blood vessel.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of safety-type puncture core, its structure are tight
Gather, can meet the needs of puncturing, and can realize protection after piercing, use is easy to operate, securely and reliably.
According to technical solution provided by the invention, the safety-type puncture core, including puncture body and be sleeved on the puncture
The outer tube on body head, the head end for puncturing body set the puncture tip of puncture, and outer tube can edge on the head for puncturing body
The length direction movement of body is punctured, when outer tube is with puncturing body relative motion, puncture tip can be exposed from the head end of outer tube；
The sleeve movement driving mechanism and use of outer tube movement are promoted when being additionally included in puncture tip break-through penetrating area
The cannula lock mechanism of location status between locking outer tube and puncture body；
The afterbody that pressing punctures body causes the opposite puncture body movement of outer tube and can be so that head of the puncture tip from outer tube
End is exposed, to carry out required puncture using puncture tip；When puncture tip break-through is when penetrating area, sleeve movement driving machine
Structure drive outer casing is opposite to puncture body movement, so that puncture tip is located in outer tube, enters in puncture tip in outer tube
When, outer tube is maintained at by current location status with puncturing body locking by cannula lock mechanism.
Described sleeve pipe motion driving mechanism include be sheathed on puncture body on casing-tube elastic body, the one of described sleeve pipe elastomer
Hold and step connection is connected with the elastomer on puncture body, the inner barrier connector in the other end and outer tube of casing-tube elastic body connects
Connect；When puncture tip is exposed from the head end of outer tube, casing-tube elastic body is in compressive state；Wait to puncture in puncture tip break-through
During region, casing-tube elastic physical efficiency promotes outer tube movement, so that puncture tip is located in outer tube.
Described sleeve pipe locking mechanism includes being arranged at the bullet shank for puncturing body head, and being set in the head end for puncturing body allows bullet
The bullet pin mounting hole that shank is set, the perforation of bullet pin mounting hole punctures body and length of the length direction of bullet pin mounting hole with puncturing body
Direction is vertical；
Casing location hole is set on outer tube, and playing shank can move in bullet pin mounting hole, and playing the head end of shank can stretch into
, can be by outer tube with puncturing body mutually locking in casing location hole, and when the head end for playing shank is stretched into casing location hole.
The elongated insertion part for playing shank and including locking pipe and being arranged at outside the locking tube head end, locking pipe are placed in bullet pin
In mounting hole, the elongated insertion part can be stretched into casing location hole；
The elongated insertion part pushing mechanism for promoting elongated insertion part to be moved all the time towards the casing location hole of outer tube is further included, when
When elongated insertion part is aligned with the casing location hole of outer tube, elongated insertion part pushing mechanism can promote elongated insertion part to stretch into casing location hole.
The elongated insertion part pushing mechanism includes the locking tubular elastic body being arranged in locking pipe and locking pipe is stretched into one end
Interior locking bolt, one end of the locking bolt can be contacted with locking tubular elastic body.
The outside diameter of the elongated insertion part is less than the outside diameter of locking pipe, and it is in coaxial distribution that elongated insertion part is managed with locking, locking bolt bag
Tightening latch and the tightening latch block positioned at the tightening latch end are included, the tightening latch block is outer positioned at locking pipe, and tightening latch stretches into locking pipe interior energy
So that locking tubular elastic body is in compressive state.
Unlocking mechanism is further included, the unlocking mechanism coordinates with playing shank, can be so that stretching into casing location hole
The head end of bullet shank exit described sleeve pipe location hole, play shank head end exit casing location hole after, outer tube is puncturing body
Head opposite puncture body movement.
The unlocking mechanism includes being used to promote playing shank movement so that the head end for playing shank exits casing location hole
Puncture is stretched into vivo in interior push rod, one end of the push rod, and push rod can be transported along the length direction of the puncture body in vivo in puncture
Dynamic, the end that push rod stretches into puncture body can be adapted to connection with playing shank.
The push rod is in vivo coaxial distribution with the puncture body puncturing, and push rod, which stretches into the end for puncturing body, has promotion
Inclined-plane is contacted, plays the promotion contiguous block for being set on shank and inclined-plane adaptation being contacted with promoting, the promotion contact inclined-plane of push rod is with promoting
After contiguous block contact, by push rod to when being promoted close to puncture tip direction, the head end that can to play shank exits casing location hole
It is interior.
Pushrod movement resetting-mechanism is further included, the pushrod movement resetting-mechanism includes the push rod elasticity being sheathed on push rod
Body and the elastomer contiguous block being arranged on push rod, push rod elastomer is internal positioned at puncturing, and one end of push rod elastomer is with wearing
Push rod elastomer step connection in nematophore, in push rod to when being moved close to puncture tip direction, push rod elastomer is in compression
State.
Advantages of the present invention：When puncture tip break-through is when penetrating area, sleeve movement driving mechanism drive outer casing phase
To puncturing body movement, so that puncture tip is located in outer tube, when puncture tip enters in outer tube, locked by casing
Outer tube is maintained at current location status by mechanism with puncturing body locking；Outer tube is locked with puncturing body by cannula lock mechanism
After positioning configuration state, when puncturing body by puncturing handle pressing, outer tube with puncture body will not relative motion again, i.e., so that wear
Puncture tip end can be always positioned in outer tube, reached stabilization and be effectively protected purpose.When needing to carry out secondary puncture, lock can be used
Determine contact of the cancel system realization to moved state, meet the needs repeatedly punctured, it is easy to use, securely and reliably.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of outer tube of the present invention.
Fig. 3 is the schematic diagram of puncture tip of the present invention.
Fig. 4 is the structure diagram that the present invention plays shank.
Fig. 5 is the structure diagram that the present invention punctures body.
Fig. 6 is the structure diagram of push rod of the present invention.
Description of reference numerals：1- punctures body, 2- outer tubes, 3- puncture tips, 4- and punctures handle, 5- push rods elastomer, 6-
Sleeve end limited step, 7- casing-tube elastics body, 8- elastomers connection step, 9- bullets shank, 10- push rods, 11- casings location hole,
12- inner barriers connector, 13- tips connector, 14- tips connection location hole, 15- bullet pins mounting hole, 16- push-rod holes, 17- are pushed away
Bar elastomer step, 18- lockings pipe, 19- promote contiguous block, 20- elongated insertion parts, 21- locking tubular elastics body, 22- tightening latches, 23- bolts
Bar block, 24- elastomers contiguous block and 25- promote contact inclined-plane.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1：In order to meet the needs of puncturing, and protection can be realized after piercing, improve using operation just
Victory, the present invention include the outer tube 2 for puncturing body 1 and being sleeved on 1 head of the puncture body, and the head end for puncturing body 1 is set
The puncture tip 3 of puncture, outer tube 2 can move on the head for puncturing body 1 along the length direction for puncturing body 1, and outer tube 2 is with wearing
During 1 relative motion of nematophore, puncture tip 3 can be exposed from the head end of outer tube 2；
Promoted when being additionally included in 3 break-through penetrating area of puncture tip sleeve movement driving mechanism that outer tube 2 moves and
For locking outer tube 2 and puncturing the cannula lock mechanism of location status between body 1；
The afterbody that pressing punctures body 1 causes the opposite body 1 that punctures of outer tube 2 to move and puncture tip 3 can be caused from outer tube 2
Head end expose, to carry out required puncture using puncture tip 3；When 3 break-through of puncture tip is when penetrating area, sleeve movement
The opposite body 1 that punctures of driving mechanism drive outer casing 2 moves so that puncture tip 3 is located in outer tube 2, puncture tip 3 into
When entering in outer tube 2, outer tube 2 is maintained at by current location status with puncturing the locking of body 1 by cannula lock mechanism.
Specifically, puncture body 1, outer tube 2 to be made of the material for meeting medical standard, it is in similar rod-shaped to puncture body 1
Structure, the outside diameter of outer tube 2 are more than the head end outside diameter for puncturing body 1, are punctured so that outer tube 2 can be sleeved on body 1.Puncture tip 3
Positioned at the head end for puncturing body 1, puncture procedure can be completed using puncture tip 3.Usually, puncture tip 3 is with puncturing body 1 in coaxial
Distribution, outer tube 2, which is sleeved on, to be punctured on body 1, and outer tube 2 is in coaxial distribution with puncturing body 1, punctures length direction and the puncture of body 1
The axis of body 1 is consistent, so that outer tube 2 can be along the axial-movement for puncturing body 1 on body 1 is punctured.When outer tube 2 to puncture body
During 1 tail end movement, puncture tip 3 can be exposed from the head end of outer tube 2, after the head end of puncture tip 3 from outer tube 2 exposes
Carry out puncture procedure is not interfered with；, can be so that puncture tip 3 be located at outer tube when outer tube 2 is moved to the head end for puncturing body 1
In 2, when puncture tip 3 is located in outer tube 2, it is avoided that puncture tip 3 contacts organ-tissue and produces damage.
Puncture body 1 tail end set puncture handle 4, puncture body 1 formed puncture handle 4 outside diameter be more than puncture body 1 other
The outside diameter of position, body 1 is entirely punctured by puncturing handle 4 easy to grip.Before puncture procedure is carried out, it will puncture outside body 1 and be arranged
Bent an outpost of the tax office, utilizes bent an outpost of the tax office and the skin contact for treating penetrating area.After the regional location for determining to puncture, carried out using bent an outpost of the tax office
Positioning, and ensure that the head end of puncture tip 3 from outer tube 2 is pierced by, puncture body 1 by puncturing the pressing of handle 4 so that puncture body 1
The puncture tip 3 of head end and the skin contact for treating penetrating area, with being pressed by puncturing handle 4 puncturing the continuous of body 1, wear
Puncture tip end 4 can break-through region to be punctured.
When break-through is when penetrating area, puncture tip 3 and outer tube 2 can enter it is intraperitoneal, in order to avoid puncture tip
End 3 produces unnecessary damage, and sleeve movement driving mechanism promotes outer tube 2 to move at the same time, after outer tube 2 moves, puncture tip
End 3 is in outer tube 2, and at this time, puncture tip 3 is in non-and exposes state.In order to ensure outer tube 2 blocks puncture tip 3
The reliability of protection, locks outer tube 2 with puncturing the location status of body 1, outer tube 2 is with puncturing body 1 by cannula lock mechanism
After cannula lock mechanism latched position state, when puncturing body 1 by puncturing the pressing of handle 4, outer tube 2 is with puncturing body 1
Will not relative motion again, that is, enable puncture tip 3 to be always positioned in outer tube 2, reach stabilization be effectively protected purpose.
As shown in Fig. 2, described sleeve pipe motion driving mechanism includes being sheathed on the casing-tube elastic body 7 punctured on body 1, the set
One end of tubular elastic body 7 is connected step 8 with the elastomer on puncture body 1 and connects, the other end and the outer tube 2 of casing-tube elastic body 7
Interior inner barrier connector 12 connects；When the head end of puncture tip 3 from outer tube 2 exposes, casing-tube elastic body 7 is in compression shape
State；When 3 break-through of puncture tip is when penetrating area, casing-tube elastic body 7 can promote outer tube 2 to move, so that puncture tip 3
In in outer tube 2.
In the embodiment of the present invention, casing-tube elastic body 7 can use the elastomeric elements such as spring to be made, and casing-tube elastic body 7 can cover
On body 1 is punctured, one end of casing-tube elastic body 7 is connected step 8 with elastomer and connects, the other end and the inner barrier in outer tube 2
Contiguous block 12 connects, the convex block form annular in shape or symmetrical in outer tube 2 of inner barrier contiguous block 12.When pressing punctures body
1 and before non-break-through treats penetrating area, the head end of outer tube 2, which is against, treats punch through region, and puncture tip 3 is revealed from the head end of outer tube 2
Go out and treat punch through region puncture；Punch through region is treated since the head end of outer tube 2 is against and before non-break-through, casing-tube elastic body 7
It is compressed in outer tube 2 between elastomer connection step 8 and internal resistance shelves connector 12.When 3 break-through of puncture tip is waited to puncture
During region, since outer tube 2 enters intraperitoneal, the interaction force disappearance of 2 head end of outer tube, the casing bullet in compressive state
Property body 7 can promote outer tube 2 to away from puncture body 1 tail end direction move, outer tube 2 movement after, puncture tip 3 can be surrounded
In outer tube 2.Since the head end of outer tube 2 is in passive state, compared with puncture tip 3, damage will not be produced to organ-tissue
Wound.
Certainly, in the specific implementation, sleeve movement driving mechanism can also use other forms, as long as can be in puncture tip
After 3 break-through, outer tube 2 can be promoted to move so that puncture tip 3 is located in outer tube 2, and concrete form can be as needed
Make choice, will not enumerate herein.
As shown in Fig. 2, Fig. 3 and Fig. 5, described sleeve pipe locking mechanism includes being arranged at the bullet shank 9 for puncturing 1 head of body,
The head end for puncturing body 1 sets the bullet pin mounting hole 15 for allowing bullet shank 9 to set, and the perforation of bullet pin mounting hole 15 punctures body 1 and bullet pin
The length direction of mounting hole 15 is vertical with the length direction for puncturing body 1；
Casing location hole 11 is set on outer tube 2, and playing shank 9 can move in bullet pin mounting hole 15, play the head end of shank 9
It can stretch into casing location hole 11, and when the head end for playing shank 9 is stretched into casing location hole 11, can be by outer tube 2 with puncturing
1 mutually locking of body.
In the embodiment of the present invention, elastic mounting hole 15 penetrates through the head end for being arranged at and puncturing body 1, the axis of elastic mounting hole 15
Axis with puncturing body 1 is mutually perpendicular to.Casing location hole 11 penetrates through the side wall of outer tube 2, is punctured when outer tube 2 is sleeved on body 1
When, inner barrier contiguous block 12 is located between casing location hole 11 and elastomer connection step 8.In addition, puncturing set is also set up on body 1
Pipe end limited step 6, sleeve end limited step 6 are located between elastomer connection step 8 and the tail end for puncturing body 1, utilize sleeve end
Limited step 6 can movement progress be spacing on body 1 is punctured to outer tube 2.
Outer tube 2 is along puncturing the length direction of body 1, and plays shank 9 and puncturing body 1 when being moved on puncturing body 1
Move as perpendicular to the length direction for puncturing body 1.After the movement of outer tube 2, the head end by playing shank 9 stretches into casing location hole
In 11, since the length direction for playing shank 9 is vertical with the direction of motion of outer tube 2, so that outer tube can be locked by playing shank 9
2 with puncturing body 1 so that keeps current location status can not carry out relative motion between outer tube 2 and puncture body 1.
When it is implemented, outer tube could be locked by being stretched into due to playing the head end of shank 9 in the casing location hole 11 of outer tube 2
2 location status with puncturing body 1, coordinates reliability, in overcoat in order to ensure playing shank 9 and the casing location hole 11 of outer tube 2
Guiding mechanism is also set up between pipe 2 and puncture body 1, outer tube 2 is ensured when being moved on puncturing body 1 by guiding mechanism, outer tube 2
On casing location hole 11 can with play shank 9 head end coordinate.Guiding mechanism can use the cooperation shape of guide pad and guide groove
Formula, or form needed for others, can make choice, details are not described herein again as needed.
As shown in figure 3, integral structure, or split structure can be used between body 1 and puncture tip 3 by puncturing, work as puncture
When tip 3 is with puncturing body 1 using integral structure, bullet pin mounting hole 5 can be only set on body 1 is punctured.Work as puncture tip
When end 3 is with puncturing body 1 using split type connection structure, puncture tip 3 is adapted to by tip connector 13 with puncturing the head end of body 1
Connection, in order to meet that the installation for playing shank 9 coordinates, can set tip to connect location hole 14 on tip connector 13, when
When tip connector 13 is set on puncture body 1, it is in positive corresponding that tip, which connects location hole 14 with bullet pin mounting hole 5, and meets bullet
The installation of shank 9.Certainly, still can be only on body 1 be punctured when puncture tip 3 is with puncturing body 1 using split type connection structure
Bullet pin mounting hole 5 is set, as long as ensureing to play the engagement process of the casing location hole 11 of the installation of shank 9 and outer tube 2.
As shown in figure 4, the elongated insertion part for playing shank 9 and including locking pipe 18 and being arranged at outside locking 18 head end of pipe
20, locking pipe 18 is placed in bullet pin mounting hole 15, and the elongated insertion part 20 can be stretched into casing location hole 11；
Further include and promote machine for the elongated insertion part for promoting elongated insertion part 20 to be moved all the time towards the casing location hole 11 of outer tube 2
Structure, when elongated insertion part 20 is aligned with the casing location hole 11 of outer tube 2, elongated insertion part pushing mechanism can promote elongated insertion part 20 to stretch into set
In pipe location hole 11.
In the embodiment of the present invention, the casing that elongated insertion part 20 is pushed to outer tube 2 all the time by elongated insertion part pushing mechanism positions
Hole 11, so that when the opposite puncture body 1 of outer tube 2 moves and casing location hole 11 is with 20 positive alignment of elongated insertion part, elongated insertion part promotes
Elongated insertion part 20 can be pushed into casing location hole 11 by mechanism.Elongated insertion part 20 is stretched into casing location hole 11, can be realized outer tube 2
Locking with puncturing 1 location status of body.
When it is implemented, the elongated insertion part pushing mechanism include be arranged at locking pipe 18 in locking tubular elastic body 21 and
The locking bolt in locking pipe 18 is stretched into one end, and one end of the locking bolt can be contacted with locking tubular elastic body 21.
In the embodiment of the present invention, the outside diameter of the elongated insertion part 20 is less than the outside diameter of locking pipe 18, and elongated insertion part 20 and locking
Pipe 18 includes tightening latch 22 and the tightening latch block 23 positioned at 22 end of tightening latch, the tightening latch block 23 in coaxial distribution, locking bolt
Outside locking pipe 18, tightening latch 22 stretches into locking 18 interior energy of pipe and make it that locking tubular elastic body 21 is in compressive state.
, can be spacing to playing the movement progress of shank 9 by the setting of elongated insertion part 20 and locking 18 direct outside diameter of pipe, that is, work as lock
After fixed first 20 stretch into casing location hole 11, by locking contact of the pipe 18 with 2 inner wall of outer tube, to the whole fortune for playing shank 9
It is dynamic to realize spacing, avoid locking pipe 18 with outer tube 2, puncture the disengaging of body 1.The outside diameter of tightening latch block 23 is more than the outer of tightening latch 22
Footpath, and the outside diameter of tightening latch block 23 is more than the internal diameter of locking pipe 18, i.e., can enter locking pipe 18 to tightening latch 22 by tightening latch block 23
Length carries out spacing.Locking tubular elastic body 21 is compressed by tightening latch 22 so that locking elastic body 21 can promote locking to manage all the time
18 and elongated insertion part 20 moved to close to the direction of outer tube 2.
After outer tube 2, which is sleeved on, to be punctured on body 1, guiding mechanism is utilized so that outer tube 2 can only be along the length for puncturing body 1
Direction is moved without rotating, i.e., after the movement of outer tube 2, elongated insertion part 20 can realize and the alignment of casing location hole 11,
And then stretch into casing location hole 11.Elongated insertion part 20 sets the one side wall of casing location hole 11, tightening latch block 23 close to outer tube 2
In puncturing between body 1 and outer tube 2, and side wall of the tightening latch block 23 away from casing location hole 11, outer tube 2 and between puncturing between body 1
Gap meets the movement needs between elongated insertion part 20, locking pipe 18 and locking bolt.
Further, unlocking mechanism is further included, the unlocking mechanism coordinates with playing shank 9, can be so that stretching into
The head end of the bullet shank 9 of casing location hole 11 exits described sleeve pipe location hole 11, and the head end for playing shank 9 exits casing location hole 11
Afterwards, outer tube 2 is moved in the opposite body 1 that punctures in the head for puncturing body 1.
In the specific implementation, since by playing shank 9 by outer tube 2 with puncturing after body 1 locks, pressing again punctures body 1
When, outer tube 2 with puncture body 1 can not relative motion again, puncture tip 3 is always positioned in outer tube 2.And in piercing process
In, it is sometimes desirable to situation that is secondary or repeatedly puncturing is carried out, when carrying out secondary puncture or repeatedly puncturing, it is necessary to release bullet pin
Body 9 is to outer tube 2 and the lock-out state for puncturing body 1.As shown in the above description, to release and play shank 9 to outer tube 2 with puncturing body
Lock-out state between 1, it is necessary to the head end for playing shank 9 is exited out of casing location hole 11, is playing reality of the shank 9 using Fig. 4
When applying structure, i.e., elongated insertion part 20 is exited out of casing location hole 11.
Further, the unlocking mechanism includes being used to promote playing the movement of shank 9 so that the head end for playing shank 9 exits
Push rod 10 in casing location hole 11, one end of the push rod 10, which is stretched into, to be punctured in body 1, and push rod 10 can be along institute in puncture body 1
The length direction movement for puncturing body 1 is stated, the end that push rod 10 stretches into puncture body 1 can be adapted to connection with playing shank 9.
Push rod 10 described in the embodiment of the present invention is in coaxial distribution with the puncture body 1 in puncture body 1, and push rod 10 stretches into
Puncturing the end of body 1 has promotion contact inclined-plane 25, plays and is set on shank 9 with promoting the promotion contiguous block for contacting inclined-plane 25 and being adapted to
19, the promotion of push rod 10 contact inclined-plane 25 with promote contiguous block 19 contact after, by push rod 10 to close 3 direction of puncture tip promotion
When, can be so that the head end for playing shank 9 be exited in casing location hole 11.
The bullet shank 9 can use Fig. 4 or other structure types, by taking the structure of having a try using Fig. 4 as an example, such as Fig. 6
It is shown, promote contact inclined-plane 25 oblique, promote contiguous block 19 to be arranged on locking 18 outer wall of pipe, promote contiguous block 19 with pushing away
The contact surface on dynamic contact inclined-plane 25 is also required to use heeling condition, when by push rod 10 to close to the promotion of 3 direction of puncture tip,
The head end that can to play shank 9 exits casing location hole 11, will lock pipe 18 to the direction of the tightening latch block 23 close to locking bolt
Movement.When it is implemented, when push rod 10 inserts and punctures in body 1 and contacted with promotion contiguous block 19, refer to along the tail end for puncturing body 1
On the direction of head-end, the incline direction for promoting contact inclined-plane 25 is in gradually rise.So that when promoting push rod 10, by with pushing away
Dynamic contiguous block 19 coordinates so that locking pipe 18 can stretch along 1 axis direction of vertical puncturing body so that elongated insertion part 20 can exit casing
Location hole 11.In the specific implementation, contiguous block 19 is promoted to be symmetricly set on locking pipe 18, contiguous block 19 is symmetrical when promoting
When being distributed on locking pipe 18, there are two can be contacted with the promotion for promoting contiguous block 19 to be engaged respectively for the end of push rod 10
Inclined-plane 25, after two promote contact inclined-plane 25 and promote contiguous block 19 to coordinate, can ensure that the stability for promoting locking pipe 18 to move
With reliability.
Further, pushrod movement resetting-mechanism is further included, the pushrod movement resetting-mechanism includes being sheathed on push rod 10
On push rod elastomer 5 and the elastomer contiguous block 24 that is arranged on push rod 10, push rod elastomer 5 pushed away positioned at puncturing in body 1
One end of bar elastomer 5 is connected with puncturing the push rod elastomer step 17 in body 1, in push rod 10 to close to 3 direction of puncture tip
During movement, push rod elastomer 5 is in compressive state.
In the embodiment of the present invention, when the promotion contact inclined-plane 25 of push rod 10 is with promoting contiguous block 19 to coordinate so that elongated insertion part
20 exit out of casing location hole 11, and outer tube 2 moves so that when casing location hole 11 is no longer aligned with elongated insertion part 20, this
When, it can not realize to outer tube 2 and the locking for puncturing body 1.At this time, push rod 10 is multiple under the action of pushrod movement resetting-mechanism
Position.
As shown in Figure 1 and Figure 5, push rod elastomer 5 is being punctured in body 1, and elastomer contiguous block 24 is convexly equipped on push rod 10, when
Push rod 10 is promoted to when being moved close to the direction of puncture tip 3, push rod elastomer 5 can be compressed, after push rod 10 is unclamped, pushed away
Bar elastomer 5 can be so that direction movement of 10 phase of push rod away from puncture tip 3, realizes the reset of push rod 10.Push rod elastomer 5 can
To be called oneself using elastomeric elements such as springs, in addition, in order to ensure the promotion of push rod 10 is contacted between inclined-plane 25 and promotion contiguous block 19
The Stability and dependability coordinated is connected, pushrod movement guiding mechanism, pushrod movement can be set between body 1 and push rod 10 puncturing
Guiding mechanism can guarantee that push rod 10 carries out the linear motion in a direction all the time in puncture body 1, will not be produced puncturing in body 1
Rotate.Pushrod movement guiding mechanism can use the fit form of convex block and guide groove, and concrete form can carry out as needed
Selection, details are not described herein again.
Claims (10)
1. a kind of safety-type puncture core, it is characterized in that：Including the overcoat for puncturing body (1) and being sleeved on described puncture body (1) head
Manage (2), the head end for puncturing body (1) sets the puncture tip (3) of puncture, and outer tube (2) is puncturing the head energy of body (1)
Along the length direction movement for puncturing body (1), when outer tube (2) is with puncturing body (1) relative motion, puncture tip (3) can be from overcoat
The head end of pipe (2) exposes；
Promoted when being additionally included in puncture tip (3) break-through penetrating area outer tube (2) movement sleeve movement driving mechanism and
For locking outer tube (2) and puncturing the cannula lock mechanism of location status between body (1)；
The afterbody that pressing punctures body (1) causes outer tube (2) is opposite to puncture body (1) movement and puncture tip (3) can be caused from outer
The head end of casing (2) exposes, to carry out required puncture using puncture tip (3)；In puncture tip (3), penetrating area is treated in break-through
When, sleeve movement driving mechanism drive outer casing (2) is opposite to puncture body (1) movement, so that puncture tip (3) is located at outer tube
(2) in, when puncture tip (3) is interior into outer tube (2), outer tube (2) is locked with puncturing body (1) by cannula lock mechanism
Surely it is maintained at current location status.
2. safety-type puncture core according to claim 1, it is characterized in that：Described sleeve pipe motion driving mechanism includes being sheathed on
The casing-tube elastic body (7) on body (1) is punctured, one end of described sleeve pipe elastomer (7) is with puncturing the elastomer connected unit on body (1)
Rank (8) connects, and the other end of casing-tube elastic body (7) is connected with the inner barrier connector (12) in outer tube (2)；In puncture tip
(3) when exposing from the head end of outer tube (2), casing-tube elastic body (7) is in compressive state；In puncture tip (3), break-through is waited to puncture
During region, casing-tube elastic body (7) can promote outer tube (2) to move, so that puncture tip (3) is located in outer tube (2).
3. safety-type puncture core according to claim 1, it is characterized in that：Described sleeve pipe locking mechanism includes being arranged at puncture
The bullet shank (9) on body (1) head, the bullet pin mounting hole (15) for allowing bullet shank (9) to set is set in the head end for puncturing body (1),
Bullet pin mounting hole (15) perforation punctures body (1) and the length direction of bullet pin mounting hole (15) hangs down with puncturing the length direction of body (1)
Directly；
Casing location hole (11) is set on outer tube (2), and playing shank (9) can move in bullet pin mounting hole (15), play shank (9)
Head end can stretch into casing location hole (11), and when the head end for playing shank (9) stretch into casing location hole (11) it is interior when, can general it is outer
Casing (2) is with puncturing body (1) mutually locking.
4. safety-type puncture core according to claim 3, it is characterized in that：It is described bullet shank (9) include locking pipe (18) with
And the elongated insertion part (20) outside described locking pipe (18) head end is arranged at, locking pipe (18) is placed in bullet pin mounting hole (15), described
Elongated insertion part (20) can be stretched into casing location hole (11)；
Further include and promoted for the elongated insertion part for promoting elongated insertion part (20) to be moved all the time towards the casing location hole (11) of outer tube (2)
Mechanism, when elongated insertion part (20) is aligned with the casing location hole (11) of outer tube (2), elongated insertion part pushing mechanism can promote elongated insertion part
(20) stretch into casing location hole (11).
5. safety-type puncture core according to claim 4, it is characterized in that：The elongated insertion part pushing mechanism includes being arranged at lock
Locking tubular elastic body (21) and one end in fixed tube (18) stretch into the locking bolt in locking pipe (18), one end of the locking bolt
It can be contacted with locking tubular elastic body (21).
6. safety-type puncture core according to claim 5, it is characterized in that：The outside diameter of the elongated insertion part (20) is less than locking and manages
(18) outside diameter, and elongated insertion part (20) and locking pipe (18) they are in coaxial distribution, locking bolt includes tightening latch (22) and positioned at described
The tightening latch block (23) of tightening latch (22) end, positioned at locking pipe (18) outside, tightening latch (22) stretches into locking pipe to the tightening latch block (23)
(18) interior energy make it that locking tubular elastic body (21) is in compressive state.
7. safety-type puncture core according to claim 3, it is characterized in that：Further include unlocking mechanism, the locking solution
, can be so that the head end for the bullet shank (9) for stretching into casing location hole (11) exits described sleeve pipe and determines except mechanism is with playing shank (9) cooperation
Position hole (11), play shank (9) head end exit casing location hole (11) after, outer tube (2) is worn the head for puncturing body (1) is opposite
Nematophore (1) moves.
8. safety-type puncture core according to claim 7, it is characterized in that：The unlocking mechanism includes being used to promote bullet
Shank (9) moves so that the head end for playing shank (9) exits push rod (10) in casing location hole (11), and the one of the push rod (10)
End, which is stretched into, to be punctured in body (1), and push rod (10) is moved in puncture body (1) interior energy along the length direction of the puncture body (1), push rod
(10) connection can be adapted to playing shank (9) by stretching into the end of puncture body (1).
9. safety-type puncture core according to claim 8, it is characterized in that：The push rod (10) is being punctured in body (1) and institute
It is in coaxial distribution to state and puncture body (1), and push rod (10), which stretches into the end for puncturing body (1), has promotion contact inclined-plane (25), plays shank
(9) the promotion contiguous block (19) for contact inclined-plane (25) adaptation with promoting is set on, the promotion of push rod (10) contact inclined-plane (25) and
After promoting contiguous block (19) contact, by push rod (10) to when promoting close to puncture tip (3) direction, it can to play shank (9)
Head end is exited in casing location hole (11).
10. safety-type puncture core according to claim 9, it is characterized in that：Pushrod movement resetting-mechanism is further included, it is described to push away
Bar movement resetting-mechanism includes the push rod elastomer (5) being sheathed on push rod (10) and the elastomer being arranged on push rod (10)
Contiguous block (24), push rod elastomer (5) is positioned at puncturing in body (1), and one end of push rod elastomer (5) is with puncturing pushing away in body (1)
Bar elastomer step (17) connects, and in push rod (10) to when being moved close to puncture tip (3) direction, push rod elastomer (5) is in
Compressive state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711329320.1A CN107898491B (en) | 2017-12-13 | 2017-12-13 | Safety puncture core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711329320.1A CN107898491B (en) | 2017-12-13 | 2017-12-13 | Safety puncture core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107898491A true CN107898491A (en) | 2018-04-13 |
| CN107898491B CN107898491B (en) | 2023-11-24 |
Family
ID=61865327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711329320.1A Active CN107898491B (en) | 2017-12-13 | 2017-12-13 | Safety puncture core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107898491B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852472A (en) * | 2018-06-18 | 2018-11-23 | 无锡圣诺亚科技有限公司 | From locking safety-type veress needle |
| CN108938056A (en) * | 2018-08-01 | 2018-12-07 | 张云峰 | A kind of scalable fixed hysteroscope puncture outfit |
| CN109009251A (en) * | 2018-09-12 | 2018-12-18 | 南京市第医院 | Intravascular localized biopsy device |
| CN111658096A (en) * | 2020-07-14 | 2020-09-15 | 青岛市市北区蓝天心理研究所 | Puncture needle for medical treatment |
| CN111772741A (en) * | 2020-07-07 | 2020-10-16 | 无锡圣诺亚科技有限公司 | Safety pneumoperitoneum needle capable of self-locking |
| CN112545701A (en) * | 2020-12-03 | 2021-03-26 | 苏州大学 | Wire bolt, fixer, wire bolt operating device and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5318584A (en) * | 1992-04-13 | 1994-06-07 | Boehringer Mannheim Gmbh | Blood lancet device for withdrawing blood for diagnostic purposes |
| CN101953706A (en) * | 2009-07-16 | 2011-01-26 | 上海交通大学医学院附属新华医院 | Special puncture outfit for single-pore peritoneoscope |
| US20130310750A1 (en) * | 2012-05-16 | 2013-11-21 | The Seaberg Company, Inc. | Safety needle |
| CN107320161A (en) * | 2017-08-30 | 2017-11-07 | 无锡圣诺亚科技有限公司 | Core is punctured from retraction |
| CN107361829A (en) * | 2017-08-30 | 2017-11-21 | 无锡圣诺亚科技有限公司 | Cored structure is punctured from retraction |
-
2017
- 2017-12-13 CN CN201711329320.1A patent/CN107898491B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5318584A (en) * | 1992-04-13 | 1994-06-07 | Boehringer Mannheim Gmbh | Blood lancet device for withdrawing blood for diagnostic purposes |
| CN101953706A (en) * | 2009-07-16 | 2011-01-26 | 上海交通大学医学院附属新华医院 | Special puncture outfit for single-pore peritoneoscope |
| US20130310750A1 (en) * | 2012-05-16 | 2013-11-21 | The Seaberg Company, Inc. | Safety needle |
| CN107320161A (en) * | 2017-08-30 | 2017-11-07 | 无锡圣诺亚科技有限公司 | Core is punctured from retraction |
| CN107361829A (en) * | 2017-08-30 | 2017-11-21 | 无锡圣诺亚科技有限公司 | Cored structure is punctured from retraction |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852472A (en) * | 2018-06-18 | 2018-11-23 | 无锡圣诺亚科技有限公司 | From locking safety-type veress needle |
| CN108938056A (en) * | 2018-08-01 | 2018-12-07 | 张云峰 | A kind of scalable fixed hysteroscope puncture outfit |
| CN108938056B (en) * | 2018-08-01 | 2024-04-09 | 四川省医学科学院·四川省人民医院 | Telescopic fixed type endoscopic puncture outfit |
| CN109009251A (en) * | 2018-09-12 | 2018-12-18 | 南京市第医院 | Intravascular localized biopsy device |
| CN109009251B (en) * | 2018-09-12 | 2024-01-23 | 南京医科大学附属逸夫医院 | Intravascular positioning biopsy device |
| CN111772741A (en) * | 2020-07-07 | 2020-10-16 | 无锡圣诺亚科技有限公司 | Safety pneumoperitoneum needle capable of self-locking |
| CN111658096A (en) * | 2020-07-14 | 2020-09-15 | 青岛市市北区蓝天心理研究所 | Puncture needle for medical treatment |
| CN111658096B (en) * | 2020-07-14 | 2021-11-09 | 青岛市市北区蓝天心理研究所 | Puncture needle for medical treatment |
| CN112545701A (en) * | 2020-12-03 | 2021-03-26 | 苏州大学 | Wire bolt, fixer, wire bolt operating device and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107898491B (en) | 2023-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107898491A (en) | Safety-type puncture core | |
| JP2018183627A (en) | Subcutaneous delivery tool | |
| CN107361829B (en) | Self-retraction puncture core structure | |
| JP2009297509A (en) | Bladed/bladeless obturator for use in surgical trocar assembly | |
| CN106572874B (en) | The scissors end effector and application method of pin type | |
| KR20090078306A (en) | T-bar suture instrument | |
| CN108261227A (en) | It is a kind of to puncture core assembly and with its puncture outfit | |
| CN106491192A (en) | A kind of perforator comprising double protective covers | |
| CN108553140B (en) | Child indirect hernia minimally invasive wire device and use method thereof | |
| CN107320161A (en) | Core is punctured from retraction | |
| EP2796096A1 (en) | Medical port | |
| CN208274606U (en) | Safety-type puncture core | |
| CN108261228A (en) | A kind of puncture outfit | |
| KR200445693Y1 (en) | A trocar for endoscopic operation | |
| CN108888320A (en) | Needle set for Lung neoplasm Needle localization | |
| CN207804347U (en) | Core is punctured from retraction | |
| CN209186815U (en) | A kind of high ligation of hernial sac needle | |
| CN208910420U (en) | A kind of Lung neoplasm puncture localization needle | |
| CN201179082Y (en) | Double-tip diplopore double-flute arcuated sewing needle | |
| CN209392044U (en) | A kind of hemorrhoid set bundle cushion rubber remover | |
| CN107028631A (en) | A kind of minimally invasive suture combined apparatus of heel string | |
| CN209285669U (en) | Needle set for Lung neoplasm Needle localization | |
| CN105852923A (en) | Achilles tendon minimally-invasive suture instrument set | |
| CN210138183U (en) | Ablation protection isolation device | |
| CN208959092U (en) | Anti-dropout antisitic defect seal wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200102 Address after: 214000 A1, fifth floor, standard workshop of Wuxi Liyuan Development Zone, Wuxi, Jiangsu Applicant after: WUXI HUANA MEDICAL TECHNOLOGY CO.,LTD. Address before: 214072 Standard Building A3, Laiyuan Development Zone, Binhu District, Wuxi City, Jiangsu Province, 302 Applicant before: WUXI HOLY NOAH TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |