CN208822954U - A kind of adjustable incision knife of syringe needle - Google Patents
A kind of adjustable incision knife of syringe needle Download PDFInfo
- Publication number
- CN208822954U CN208822954U CN201820688586.9U CN201820688586U CN208822954U CN 208822954 U CN208822954 U CN 208822954U CN 201820688586 U CN201820688586 U CN 201820688586U CN 208822954 U CN208822954 U CN 208822954U
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- China
- Prior art keywords
- hole
- syringe needle
- injection
- tube
- cutter head
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Abstract
The utility model relates to the field of medical instrument technology, and in particular to a kind of adjustable incision knife of syringe needle.Inject handle, core bar and pedestal are respectively provided with through its internal first through hole, second through-hole and third through-hole, it is slidably mounted in the second through-hole of core bar by the way that handle will be injected, one end of injection-tube is installed in the first through hole of injection handle, and injection-tube passes through the second through-hole and third through-hole, the other end is fixedly connected with syringe needle, connecting pipe box are outside the injection-tube and one end connects core bar, the other end is fixed with cutter head, the syringe needle slides in the fourth hole of cutter head, so as to control expanding-contracting action of the syringe needle in cutter head by control injection handle, therefore the relative position of cutter head and syringe needle during coagulation is adjusted and injects two, the convenience of operation is greatly improved, the point stress of syringe needle smoothly penetrating tissue surface and can be injected and reduce operation risk.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of adjustable incision knife of syringe needle.
Background technique
Incision knife is widely used to medical field, especially in Minimally Invasive Surgery in use, since its cutter head is unique
Moulding and size are small, and have coagulation effect, can be more accurate to the assurance of size when cutting tissue film, and guarantee
The safety and stability of Minimally Invasive Surgery.
Existing monopole incision knife, the main connection type fixed using cutter head and syringe needle, syringe needle cannot be transported in cutter head
It is dynamic, and since cutter head needs to carry out coagulation operation, syringe needle is usually mounted in cutter head plane, therefore, cutter head is being resisted tissue
When surface is injected, needing firmly to press cutter head makes cutter head submerge organization internal, to provide biggish injection pressure for syringe needle
Power is to pierce through tissue surface.
Above-mentioned existing incision knife design has the following deficiencies: that syringe needle cannot be moved with respect to cutter head, can not adjust coagulation with
The relative position of cutter head and syringe needle, inconvenient during injection two；The design that syringe needle is located in cutter head plane can not be not
Syringe needle is smoothly inserted into organization internal in the case where firmly pressing；Firmly pressing cutter head guarantees that syringe needle pierces through tissue surface, is easy
The injury to tissue bottom is caused, and strength is difficult to grasp, it is more demanding to the proficiency of user, it is with higher to use wind
Danger.
Utility model content
Technical problem to be solved in the utility model are as follows: a kind of adjustable incision knife of syringe needle is provided, can be solved existing
Following defect existing for incision knife: syringe needle cannot be moved with respect to cutter head, can not adjust coagulation and injection two during cutter head and
The relative position of syringe needle, it is inconvenient；Syringe needle is located at the design in cutter head plane can not be in the case where not pressing firmly by needle
Head is smoothly inserted into organization internal；Firmly pressing cutter head guarantees that syringe needle pierces through tissue surface, be easy to cause the injury to tissue bottom,
And strength is difficult to grasp, and it is more demanding to the proficiency of user, there is higher operation risk.
Used technical solution is to solve above-mentioned technical problem:
A kind of adjustable incision knife of syringe needle, including injection handle, core bar, electrode, pedestal, injection-tube, connecting tube, syringe needle and knife
Head, the injection handle have through its internal first through hole, and core bar has through its second internal through-hole, and pedestal, which has, to be passed through
Its internal third through-hole is worn, the injection handle is slidably mounted in the second through-hole, and one end of the injection-tube is installed on first
In through-hole, and injection-tube passes through the second through-hole and third through-hole, and the other end is fixedly connected with syringe needle, and the core bar is installed on pedestal
On, the connecting pipe box are outside injection-tube, and connecting tube one end is fixed in the second through-hole, and connecting tube passes through third through-hole,
The other end is fixedly connected with cutter head, and the cutter head has through its internal fourth hole, and the syringe needle is sliding in fourth hole
It is dynamic, and syringe needle can skid off cutter head and be more than cutter head plane, the connecting tube is conductive material and passes through electrode and contact with electrode,
The electrode is through pedestal side wall and is fixed on pedestal, and the injection handle injects liquid into injection-tube by first through hole, and
It is delivered to syringe needle by injection-tube, injection handle slides in the second through-hole for driving injection-tube to move, to make syringe needle stroke
It is adjustable.
In a preferred embodiment, there is the second sliding block, second sliding block is slidably mounted on the core bar
In third through-hole, it is fixed with outer tube in pedestal third through-hole end, the connecting pipe box are in outer tube, and core bar is along third through-hole
Connecting tube can be driven to move along outer tube in sliding process.
In a preferred embodiment, insulation sleeve, the connection are installed between cutter head outer surface and outer tube wall
Pipe is connect by limited block with cutter head, and the limited block is conductive material, and limited block is slided along outer tube wall, and cutter head stretches out outer
Pipe, drives limited block to move and withstand insulation sleeve, and the limited block is used to limit the length that cutter head stretches out outer tube.
In a preferred embodiment, outer tube is stretched out in described cutter head one end, and the incision end of cutter head is located at outside outer tube
Portion, the diameter for cutting end is greater than outer tube diameter, to prevent in cutter head retraction outer tube.
In a preferred embodiment, the connecting tube is bourdon tube.
In a preferred embodiment, the core bar has sliding slot and location hole, has first on the injection handle
Sliding block and positioning bead, first sliding block are installed in sliding slot, thus slide injection handle can along core bar axis direction, it is described fixed
At least two on core bar axis direction, positioning bead, which is caught in location hole, fixes injection handle in position hole.
In a preferred embodiment, the injection-tube is fixedly connected by boost tube with injection handle.
In a preferred embodiment, female Luer, the female Luer connection are installed at the top of the injection handle
First through hole, female Luer is for connecting syringe.
The beneficial effects of the utility model are:
(1) it is slidably mounted in the second through-hole of core bar by the way that handle will be injected, one end of injection-tube is installed on injection handle
In first through hole, and injection-tube passes through the second through-hole and third through-hole, and the other end is fixedly connected with syringe needle, and connecting pipe box are in described
Outside injection-tube and one end connects core bar, and the other end is fixed with cutter head, and the syringe needle slides in the fourth hole of cutter head, thus
Expanding-contracting action of the syringe needle in cutter head, therefore knife during adjustable coagulation and injection two can be controlled by control injection handle
The relative position of head and syringe needle, is greatly improved the convenience of operation；
(2) guarantee that syringe needle can skid off cutter head and be more than cutter head plane, so that syringe needle and cutter head plane be made to form drop, inciting somebody to action
When cutter head resists tissue surface, the point stress of syringe needle can smoothly penetrating tissue surface and be injected；
(3) it due to not needing firmly to press incision knife, so as to avoid the injury to tissue bottom, greatly reduces to making
The requirement of user's proficiency, to reduce operation risk indirectly.
Detailed description of the invention:
Fig. 1 is: the perspective view of incision knife described in the utility model；
Fig. 2 is: the explosive view of incision knife described in the utility model；
Fig. 3 is: the injection handle pull-out of incision knife described in the utility model, core bar pull out the sectional view of state；
Fig. 4 is: the injection handle of incision knife described in the utility model pulls out, core bar pulls out the sectional view at state lower cutter head；
Fig. 5 is: the sectional view for injecting handle push-in, core bar pushing status of incision knife described in the utility model；
Fig. 6 is: the injection handle push-in of incision knife described in the utility model, the sectional view at core bar pushing status lower cutter head.
Each appended drawing reference in figure are as follows: 1: injection handle, 11: female Luer, 12: the first sliding blocks, 13: positioning bead, 14: the first is logical
Hole, 2: core bar, 21: sliding slot, 22: location hole, 23: the second sliding blocks, 24: the second through-holes, 3: pedestal, 31: electrode, 32: electrode sleeve,
33: top base, 34: bottom base, 35: third through-hole, 4: boost tube, 5: injection-tube, 6: bourdon tube, 7: outer tube, 71: insulation sleeve,
8: syringe needle, 9: cutter head, 91: limited block.
Specific embodiment:
Below with reference to each attached drawing, the utility model is described in detail.
Incision knife described in the utility model includes injection handle 1, core bar 2, pedestal 3, electrode 31, injection combined with Figure 1 and Figure 2,
Pipe 5, bourdon tube 6, syringe needle 8 and cutter head 9.Female Luer 11 is fixedly installed at the top of injection handle 1, injection handle 1, which has, runs through it
Internal first through hole 14, the injection orifice connection first through hole 14 of female Luer 11 simultaneously connect syringe (not shown),
The lower part of injection handle 1 is oppositely arranged there are two the first sliding block 12, is respectively arranged with a positioning bead 13 in the two sides of injection handle 1.
There is the sliding slot 21 on connection its surface and inner wall on the opposite flank of core bar 2, be respectively arranged with location hole in the two sides of sliding slot 21
22, and there are two every group of tools of location hole 22.Handle 1 will be injected to be inserted into the second through-hole 24 of core bar 2, wherein the first sliding block 12 with
Sliding slot 21, which cooperates, realizes that injection handle 1 is slided along the generatrix direction of core bar 2, and positioning bead 13 can be caught in location hole 22, thus
It realizes and can control syringe needle in the locking of different stalls injection handle 1.The lower part of core bar 2 has the second sliding block 23, and it is upper that pedestal 3, which divides,
Pedestal 33, bottom base 34 and electrode sleeve 32, top base 33 and bottom base 34 mutually fasten installation, and inner wall forms third through-hole
35, the second sliding block 23 of core bar 2 can slide in the second through-hole 24, control to realize the stroke of cutter head 9.By electrode 31
Pedestal 3 is passed through by electrode sleeve 32, and guarantees that bourdon tube 6 passes through electrode 31 to complete coagulation by 6 conduction of bourdon tube.?
The lower section of pedestal 33 is equipped with outer tube 7, and outer tube 7 is for protecting internal pipeline.
Hereinafter, the incision knife different conditions are described in detail in conjunction with sectional view.
In conjunction with Fig. 3 and Fig. 4, boost tube 4 is fixed in the first through hole 14 of injection handle 1, connects note in one end of boost tube 4
Penetrate pipe 5.Injection-tube 5 passes through the second through-hole 24 of core bar 2 and the third through-hole 35 of pedestal 3 and is connected with syringe needle 8 in the other end.
Bourdon tube 6 is installed in the second through-hole 24 of core bar 2, bourdon tube 6 is placed on outside injection-tube 5, and bourdon tube 6 is logical across third
Hole 35 is simultaneously connected with cutter head 9 by limited block 91 in the other end, and bourdon tube 6 passes through electrode 31 and contacts with electrode, uses spring
The effect of pipe 6 are as follows: can guarantee that cutter head 9 has certain buffer function during contacting tissue surface, user is avoided to exert oneself
Lead to the damage to tissue greatly.It is fixed with outer tube 7 in the lower part of pedestal 3, outer tube 7 entangles bourdon tube 6 to play a protective role.
Wherein, bourdon tube 6, cutter head 9 and limited block 91 are stainless steel material, have conductive characteristic, when by high-frequency apparatus connection electrode
When 31, electric current passes sequentially through electrode 31, bourdon tube 6, limited block 91, cutter head 9 and human body to form current loop to realize
Coagulation.And insulation sleeve 71 is installed between one end of outer tube 7 and cutter head 9.It is fixed with limited block 91 at the top of cutter head 9, is made
With are as follows: limited block 91 withstands insulation sleeve to prevent the completely out outer tube 7 of cutter head 9 when to 9 downward movement of cutter head.
Injection handle 1 is located at uppermost position in fig-ure, and the first sliding block 12 withstands 21 top of sliding slot, and positioning bead 13 is caught in positioning above
Hole 22, injection handle 1 drives injection-tube 5 by boost tube 4, to drive in 8 retraction cutter head 9 of syringe needle.It is pulled out simultaneously by core bar 2,
At this point, core bar 2 drives bourdon tube 6 and limited block 91 to pull 9 retraction of cutter head.The section of cutter head 9 in the axial direction is T
Shape, it is ensured that cutter head 9 withstands insulation sleeve 71 during moving upwards, so that cutter head 9 be avoided to be entirely retracted to inside outer tube 7.
It in conjunction with Fig. 5 and Fig. 6, injects handle 1 and is set positioned at lowermost position, the first sliding block 12 withstands 21 bottom of sliding slot, and positioning bead 13 blocks
Enter following location hole 22, injection handle 1 drives injection-tube 5 by boost tube 4, so that syringe needle 8 be driven to stretch out.It is pushed into simultaneously by core
Bar 2, at this point, core bar 2 drives bourdon tube 6 and limited block 91 to push cutter head 9 to stretch out outer tube 7.At this point, limited block 91 is withstood absolutely
Edge set 71, to guarantee that cutter head 9 does not deviate from outer tube 7.
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field similarly includes within the protection scope of the present utility model.
Claims (8)
1. a kind of adjustable incision knife of syringe needle, which is characterized in that including injecting handle, core bar, electrode, pedestal, injection-tube, connection
Pipe, syringe needle and cutter head, with its internal first through hole is run through, core bar has to be led to the injection handle through the second of its inside
Hole, pedestal have through its internal third through-hole, and the injection handle is slidably mounted in the second through-hole, and the one of the injection-tube
End is installed in first through hole, and injection-tube passes through the second through-hole and third through-hole, and the other end is fixedly connected with syringe needle, the core
Bar is installed on pedestal, and the connecting pipe box are outside injection-tube, and connecting tube one end is fixed in the second through-hole, and connecting tube is worn
Third through-hole is crossed, the other end is fixedly connected with cutter head, and the cutter head has through its internal fourth hole, and the syringe needle is the
It is slided in four through-holes, and syringe needle can skid off cutter head and be more than cutter head plane, the connecting tube is conductive material and passes through electrode simultaneously
It is contacted with electrode, the electrode is through pedestal side wall and is fixed on pedestal, and the injection handle is infused liquid by first through hole
Entering injection-tube, and syringe needle is delivered to by injection-tube, injection handle slides in the second through-hole for driving injection-tube to move, thus
Keep syringe needle stroke adjustable.
2. a kind of adjustable incision knife of syringe needle as described in claim 1, which is characterized in that have second to slide on the core bar
Block, second sliding block are slidably mounted in third through-hole, are fixed with outer tube, the connecting pipe box in pedestal third through-hole end
In outer tube, core bar can drive connecting tube to move along outer tube along third through-hole sliding process.
3. a kind of adjustable incision knife of syringe needle as claimed in claim 2, which is characterized in that in cutter head outer surface and outer tube wall
Between insulation sleeve is installed, the connecting tube connect by limited block with cutter head, and the limited block is conductive material, and limited block edge is outside
Inside pipe wall sliding, cutter head stretch out outer tube, drive limited block to move and withstand insulation sleeve, the limited block is for limiting cutter head stretching
The length of outer tube.
4. a kind of adjustable incision knife of syringe needle as claimed in claim 3, which is characterized in that outer tube is stretched out in described cutter head one end,
And the incision end of cutter head is located at outside pipe, the diameter for cutting end is greater than outer tube diameter, to prevent cutter head retraction outer tube
In.
5. the adjustable incision knife of a kind of syringe needle according to any one of claims 1-4, which is characterized in that the connecting tube is bullet
Reed pipe.
6. the adjustable incision knife of a kind of syringe needle according to any one of claims 1-4, which is characterized in that the core bar, which has, to be slided
Slot and location hole have the first sliding block and positioning bead on the injection handle, and first sliding block is installed in sliding slot, to make to infuse
Penetrating handle can slide along core bar axis direction, and for the location hole at least two on core bar axis direction, positioning bead is caught in positioning
Fix injection handle in hole.
7. the adjustable incision knife of a kind of syringe needle according to any one of claims 1-4, which is characterized in that the injection-tube passes through
Boost tube is fixedly connected with injection handle.
8. the adjustable incision knife of a kind of syringe needle according to any one of claims 1-4, which is characterized in that at the top of the injection handle
Female Luer is installed, the female Luer is connected to first through hole, and female Luer is for connecting syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688586.9U CN208822954U (en) | 2018-05-09 | 2018-05-09 | A kind of adjustable incision knife of syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688586.9U CN208822954U (en) | 2018-05-09 | 2018-05-09 | A kind of adjustable incision knife of syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208822954U true CN208822954U (en) | 2019-05-07 |
Family
ID=66304377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820688586.9U Expired - Fee Related CN208822954U (en) | 2018-05-09 | 2018-05-09 | A kind of adjustable incision knife of syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208822954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309439A (en) * | 2018-05-09 | 2018-07-24 | 诸暨市鹏天医疗器械有限公司 | A kind of adjustable incision knife of syringe needle and its application method |
| CN110464448A (en) * | 2019-08-15 | 2019-11-19 | 诸暨市鹏天医疗器械有限公司 | Incision knife and its application method |
-
2018
- 2018-05-09 CN CN201820688586.9U patent/CN208822954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309439A (en) * | 2018-05-09 | 2018-07-24 | 诸暨市鹏天医疗器械有限公司 | A kind of adjustable incision knife of syringe needle and its application method |
| CN110464448A (en) * | 2019-08-15 | 2019-11-19 | 诸暨市鹏天医疗器械有限公司 | Incision knife and its application method |
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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 |
Granted publication date: 20190507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |