CN110292419A - Hypodermic tunnel constructing apparatus - Google Patents
Hypodermic tunnel constructing apparatus Download PDFInfo
- Publication number
- CN110292419A CN110292419A CN201810241197.6A CN201810241197A CN110292419A CN 110292419 A CN110292419 A CN 110292419A CN 201810241197 A CN201810241197 A CN 201810241197A CN 110292419 A CN110292419 A CN 110292419A
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- Prior art keywords
- tunnel
- puncture
- hypodermic
- constructing apparatus
- obtuse
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- 206010033675 panniculitis Diseases 0.000 claims abstract description 26
- 210000004304 subcutaneous tissue Anatomy 0.000 claims abstract description 26
- 208000006558 Dental Calculus Diseases 0.000 claims description 14
- 238000007920 subcutaneous administration Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000000740 bleeding effect Effects 0.000 abstract description 4
- 206010048038 Wound infection Diseases 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 206010052428 Wound Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 208000034656 Contusions Diseases 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009519 contusion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004215 skin function Effects 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
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- 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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- 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
- A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
Abstract
The present invention provides a kind of hypodermic tunnel constructing apparatus, comprising: punctures inner core, forms point of puncture for puncturing skin；Obtuse expander is movably set in and punctures on inner core, and obtuse expander is used for along puncture node expansion subcutaneous tissue to form hypodermic tunnel；Support of tunnel pipe is movably set on obtuse expander, and support of tunnel pipe prevents medical catheter from being oppressed bending by subcutaneous tissue for being supported in hypodermic tunnel.Hypodermic tunnel constructing apparatus provided by the invention, by puncturing the setting of inner core, obtuse expander and support of tunnel pipe, so that it, when constructing hypodermic tunnel, reduces bleeding, wound infection probability is low, and medical catheter will not be bent due to the compressing by subcutaneous tissue.
Description
Technical field
The invention belongs to medicine technology fields, are to be related to a kind of hypodermic tunnel constructing apparatus more specifically.
Background technique
During many clinical operations, it is implanted into after medical tube, in order to reduce the probability of infection, can be generally worn with original
A hypodermic tunnel is created between certain point except thorn point starts to periphery 3-5cm, former point of puncture is closed, so that tube body is separate
Former point of puncture.
In the prior art, the method for generally construction hypodermic tunnel has following two:
1. going to implement with operation curved forceps, reach and give directions after position, with broken skin knife broken skin, forms hypodermic tunnel；
2. going to implement with tunnel guide, the generally included broken skin function of tunnel guide.
Both methods all has the disadvantage that
1. being all the surgical instrument using metal material, being cut or being torn to subcutaneous tissue, it will cause
Layer undertissue mechanical damage is serious, bleeds profusely；
Biggish cutting wound is caused when 2. puncturing skin, easily causes infection；
3. being all the process of a building hypodermic tunnel, after hypodermic tunnel formation, not to by hypodermic tunnel
Medical tube protected, it will cause medical tube pliable or suffer oppression, can not be played so as to cause medical tube
Preset effect.
Summary of the invention
The purpose of the present invention is to provide a kind of hypodermic tunnel constructing apparatus, to solve construction skin existing in the prior art
It bleeds profusely when lower tunnel, to infect serious and medical catheter pliable or the technical issues of suffer oppression.
To achieve the above object, the technical solution adopted by the present invention is that: provide a kind of hypodermic tunnel constructing apparatus, wrap
It includes:
Inner core is punctured, forms point of puncture for puncturing skin；
Obtuse expander is movably set on the puncture inner core, and the obtuse expander is used for along the point of puncture
Subcutaneous tissue is expanded to form hypodermic tunnel；
Support of tunnel pipe is movably set on the obtuse expander, and the support of tunnel pipe is for being supported in the skin
It is bent in lower tunnel with preventing medical catheter from being oppressed by the subcutaneous tissue.
Further, the inner core that punctures includes the puncture tube for puncturing the skin, and is connected with the puncture tube
The handle for connecing and being used to hold for hand.
Further, one end of the puncture tube has the tartar for puncturing the skin, and the tartar is in tip-like,
The handle is set to the other end of the puncture tube.
Further, the obtuse expander has the central bore axially penetrated through, and the internal diameter of the central bore is greater than
The outer diameter of the puncture tube, the central bore are sheathed on the puncture tube, and the puncture tube can be set to the central bore
In and move along its axis, the tartar can be retracted and one end of the extended central bore, the handle can backstop in institute
State the other end of central bore.
Further, the obtuse expander includes the enlarged portion for expanding the subcutaneous tissue, and with the expansion
The portion of opening connects and is used to limit the limiting section of the handle, and the central bore axially penetrates through the enlarged portion and the limit
Portion, the support of tunnel pipe are movably set in the enlarged portion.
Further, the central bore includes the expanded bore through the enlarged portion, and is communicated with the expanded bore
And run through the limit hole of the limiting section, the internal diameter of the limit hole from the expanded bore to the other end of the central bore by
Cumulative big, the handle can be plugged and is limited in the limit hole.
Further, described enlarged portion one end has the boot segment for guiding the enlarged portion to enter the point of puncture,
And connect and be used to expand the expansion segment of the subcutaneous tissue with the boot segment, the boot segment and the expansion segment it is outer
Surface is in circular conical surface, and the cone angle of the boot segment is greater than the cone angle of the expansion segment.
Preferably, the enlarged portion be can axial stretching telescopic sleeve.
Further, the support of tunnel pipe has the extension end for stretching out the hypodermic tunnel, the hypodermic tunnel construction
Device further includes the fixing clamp for being fixed on the extension end on the skin.
Further, the fixing clamp includes the interconnecting piece that can be sheathed on the extension end, and is set to the connection
Portion's opposite sides and the fixed part that can be attached on skin.
The beneficial effect of hypodermic tunnel constructing apparatus provided by the invention is: compared with prior art, skin of the invention
For lower tunnel construction device by the design of puncture inner core, obtuse expander and support of tunnel pipe, the surface of a wound can be formed by puncturing inner core
Lesser point of puncture, to reduce wound infection probability；Obtuse expander forms subcutaneous tunnel using the mode of expansion subcutaneous tissue
Road significantly reduces so that isolating of being subject to of subcutaneous tissue injures contusion, reduces bleeding；Support of tunnel pipe can be in subcutaneous tunnel
Medical catheter is supported in road, to prevent medical catheter from bending due to the compressing by subcutaneous tissue.In addition, the present invention pass through by
Obtuse expander, which is movably set in, to be punctured on inner core, and support of tunnel pipe is movably set in the design on obtuse expander, is made
It obtains when constructing hypodermic tunnel, does not need frequently puncture inner core or obtuse expander is dismantled or pacified from support of tunnel pipe
Dress, so that structure is easy to assembly, and prevents structural damage caused by due to frequently dismounting.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is supported in the structural schematic diagram of hypodermic tunnel for the support of tunnel pipe in the embodiment of the present invention；
Fig. 2 is the stereoscopic schematic diagram of hypodermic tunnel constructing apparatus provided in an embodiment of the present invention；
Fig. 3 is the front cross-sectional schematic diagram of hypodermic tunnel constructing apparatus provided in an embodiment of the present invention；
Fig. 4 is the partial enlarged view of the part A in Fig. 3；
Fig. 5 is the partial enlarged view of the part B in Fig. 3；
Fig. 6 is the structural schematic diagram of the puncture inner core in Fig. 2；
Fig. 7 is the structural schematic diagram of the obtuse expander in Fig. 2；
Fig. 8 is a kind of embodiment schematic diagram of the enlarged portion of obtuse expander provided by the invention；
Fig. 9 is the scheme of installation of support of tunnel pipe and fixing clamp that present invention implementation provides.
Wherein, each appended drawing reference in figure:
1- punctures inner core；2- obtuse expander；3- support of tunnel pipe；4- fixing clamp；5- medical catheter；6- skin；7- skin
Undertissue；8- hypodermic tunnel；80- tunnel exit；9- point of puncture；11- puncture tube；12- handle；20- central bore；21- expansion
Portion；22- limiting section；The extension end 31-；41- interconnecting piece；42- fixed part；111- tartar；121- outer cover；122- internal valve；210- expands
Zhang Kong；211- boot segment；212- expansion segment；The extended segment 213-；220- limit hole.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 5, now hypodermic tunnel constructing apparatus provided by the invention is illustrated.The subcutaneous tunnel
Road constructing apparatus is used for the surface construction hypodermic tunnel 8 under skin 6, to close wearing after being implanted into medical catheter 5 in clinical operation
Thorn point 9.Hypodermic tunnel constructing apparatus includes puncturing inner core 1, obtuse expander 2 and support of tunnel pipe 3,2 activity of obtuse expander
It is sheathed on and punctures on inner core 1, support of tunnel pipe 3 is movably set on obtuse expander 2, punctures inner core 1 for puncturing 6 shape of skin
At point of puncture 9, obtuse expander 2 is used to expand subcutaneous tissue 7 along point of puncture 9 to form hypodermic tunnel 8, support of tunnel pipe 3
It is used to support in hypodermic tunnel 8 to prevent medical catheter 5 from being oppressed by subcutaneous tissue 7 and bend.It is subcutaneous in the embodiment of the present invention
Tunnel construction device specific working mode is as follows: being movably set in obtuse expander 2 puncture on inner core 1 first, and by tunnel
Support tube 3 is movably set on obtuse expander 2, is then punctured the formation point of puncture 9 of skin 6 by puncturing inner core 1, is passed through obtuse
Expander 2 expands subcutaneous tissue 7 along point of puncture 9 and forms hypodermic tunnel 8, and obtuse expander 2 is expanded to designated position, and (distance is worn
Pierce the position of point 3-5cm), it then punctures inner core 1 and is drive on boldly forward with respect to obtuse expander 2, puncture skin 6, form tunnel exit
80, then obtuse expander 2 and support of tunnel pipe 3 successively come out from the expansion of tunnel exit 80, finally puncture inner core 1 and obtuse expands
Prop 2 is all exited from hypodermic tunnel 8, so far, construction complete hypodermic tunnel 8.And support of tunnel pipe 3 will be 80 from tunnel exit
Allocate out and reserved 1-3cm length support in hypodermic tunnel 8 as medical catheter 5, when medical catheter 5 works, can directly from
It is inserted into support of tunnel pipe 3 and works into inside of human body.
Hypodermic tunnel constructing apparatus provided by the invention, compared with prior art, hypodermic tunnel constructing apparatus of the invention
By puncturing the design of inner core 1, obtuse expander 2 and support of tunnel pipe 3, the lesser puncture of the surface of a wound can be formed by puncturing inner core 1
Point 9, to reduce wound infection probability；Obtuse expander 2 forms hypodermic tunnel 8 using the mode of expansion subcutaneous tissue 7, thus
So that the isolating of being subject to of subcutaneous tissue 7 injures contusion and significantly reduce, reduce bleeding；Support of tunnel pipe 3 can be in hypodermic tunnel 8
Medical catheter 5 is supported, to prevent medical catheter 5 from bending because of the compressing by subcutaneous tissue 7.In addition, the present invention pass through by
Obtuse expander 2, which is movably set in, to be punctured on inner core 1, and support of tunnel pipe 3 is movably set in setting on obtuse expander 2
Meter, so that not needing frequently puncture inner core 1 or obtuse expander 2 from support of tunnel pipe 3 when constructing hypodermic tunnel 8
Disassembly or installation, so that structure is easy to assembly, and prevent structural damage caused by due to frequently dismounting.
Further, Fig. 4 to 6 is please referred to, a kind of specific implementation as hypodermic tunnel constructing apparatus provided by the invention
Mode, above-mentioned puncture inner core 1 include puncture tube 11 and handle 12, puncture tube 11 for puncturing skin 6 to form point of puncture 9,
Hand 12 is connect with puncture tube 11, and handle 12 is used to hold for hand, in use, medical staff can be controlled by catching handle 12
The puncture activity in obtuse expander 2 of inner core 1, which is gone forward side by side, assassinates broken skin skin 6.Specifically, in the present embodiment, above-mentioned puncture tube 11
Be an integral molding structure with handle 12, by the same mold can will puncture 1 one-pass molding of inner core, not only reduce mold at
This, and the processing is simple.Certainly, in other embodiments of the invention, according to the actual situation and specific requirement, above-mentioned puncture tube 11
It is also possible to be separately formed with handle 12, is then fixedly connected by fastener or stickers, does not do unique limit herein
It is fixed.
Further, Fig. 4 and Fig. 6 is please referred to, a kind of specific reality as hypodermic tunnel constructing apparatus provided by the invention
Mode is applied, one end of above-mentioned puncture tube 11 has tartar 111, and handle 12 is set to the other end of puncture tube 11, referring to Fig. 4, thorn
First 111 be in tip-like, and tartar 111 is for puncturing skin 6 to form point of puncture 9.The embodiment of the present invention is by designing tartar 111
In tip-like, to reduce 9 surface of a wound of point of puncture, and then achieve the purpose that reduce infection.
Further, Fig. 4 and 5 is please referred to, a kind of specific implementation as hypodermic tunnel constructing apparatus provided by the invention
Mode, above-mentioned obtuse expander 2 have the central bore 20 axially penetrated through, and the internal diameter of central bore 20 is greater than the outer of puncture tube 11
Diameter, central bore 20 are sheathed on puncture tube 11, and puncture tube 11 can be set in central bore 20 and move along its axis, tartar
111 can be retracted and one end of the extended central bore 20, and handle 12 can backstop in the other end of central bore 20.At this
In inventive embodiments, when general work state, central bore 20 is sheathed on puncture tube 11, and 111 retraction central bore of tartar
20 one end, handle 12 is located at the other end of central bore 20, when needing to puncture skin 6 using tartar 111, for catching handle
Hand 12 moves axially puncture tube 11 in central bore 20, until tartar 111 stretches out one end of central bore 20 and punctures skin
Skin 6, and after skin 6 punctures, puncture tube 11 is yearned for into return in 20 axis of central bore further through handle 12 and is moved, until thorn
In first 111 retraction central bore 20, expansion subcutaneous tissue 7 is then gone by obtuse expander 2.
Further, Fig. 4, Fig. 5 and Fig. 7 are please referred to, a kind of tool as hypodermic tunnel constructing apparatus provided by the invention
Body embodiment, above-mentioned obtuse expander 2 include enlarged portion 21 and limiting section 22, and enlarged portion 21 is limited for expanding subcutaneous tissue 7
Position portion 22 is connect with enlarged portion 21, and limiting section 22 axially penetrates through enlarged portion 21 and limit for limiting handle 12, central bore 20
Portion 22, support of tunnel pipe 3 are movably set in enlarged portion 21.The present embodiment passes through the setting of limiting section 22, so that handle 12 is not
It can enter in central bore 20 in the case where no restriction, lead to not operate the puncture inner core 1, and limiting section 22 is limiting
The bending strength of handle 12 is enhanced while handle 12, to prevent when puncture inner core 1 punctures skin 6, handle 12
It can break, and then ensure that the entire use intensity for puncturing inner core 1.
Further, 5 are please referred to, as a kind of specific embodiment of hypodermic tunnel constructing apparatus provided by the invention,
Above-mentioned central bore 20 includes the expanded bore 210 through enlarged portion 21, and communicates with expanded bore 210 and run through limiting section 22
Limit hole 220.Limit hole 220 is in coniform, and the internal diameter of limit hole 220 is from expanded bore 210 to the other end of central bore 20
It is gradually increased, handle 12 can be plugged and is limited in limit hole 220.Specifically, referring to Fig. 5, handle 12 include outer cover 121 and
Internal valve 122, outer cover 121 is cylindrical, and internal valve 122 is set in outer cover 121 and outer cover 121 is stretched out in part, and internal valve 122 is also in circular cone
Shape, and the tilt angle of 122 outer surface of internal valve is greater than the tilt angle of limit hole 220, when internal valve 122 is inserted in limit hole 220
When middle, enlarged portion 21 gives internal valve 122 support strength, to improve the use intensity of handle 12.
Further, Fig. 4 and Fig. 5 is please referred to, a kind of specific reality as hypodermic tunnel constructing apparatus provided by the invention
Mode is applied, above-mentioned enlarged portion 21 includes that outer diameter is gradually increased boot segment 211, expansion segment 212 and extended segment 213, and expansion segment 212 connects
Be connected between boot segment 211 and extended segment 213, extended segment 213 is connect with limiting section 22, boot segment 211 and expansion segment 212 it is outer
Surface is in circular conical surface, and the outer surface of extended segment 213 is in cylindrical surface, and the cone angle of boot segment 211 is greater than the cone angle of expansion segment 212.
The embodiment of the present invention guides entire enlarged portion 21 to enter point of puncture 9, then passes through cone angle by the biggish boot segment 211 of cone angle
Lesser expansion segment 212 expands subcutaneous tissue 7, in this way, not only guarantee that enlarged portion 21 can rapidly enter point of puncture 9, and
Expansion segment 212 will not generate damage to subcutaneous tissue 7 as far as possible when carrying out subcutaneous tissue 7 and expanding, and reduce bleeding.
Preferably, referring to Fig. 8, a kind of specific embodiment as hypodermic tunnel constructing apparatus provided by the invention,
Above-mentioned enlarged portion 21 be can axial stretching telescopic sleeve, specifically, above-mentioned enlarged portion 21 include three sleeves being successively socketed,
In use, can be stretched according to the demand of 8 length of hypodermic tunnel to enlarged portion 21, so that hypodermic tunnel construction dress
The hypodermic tunnel 8 suitable for various length requirements is set, and then prevents from needing repeatedly to be pierced through because tunnel is too long, and then is reduced
Damage and infection probability.Certainly, in other embodiments of the invention, according to the specific requirements of construction hypodermic tunnel, above-mentioned expansion
Portion 21 may not be the telescopic sleeve including three sleeves, but only one sleeve, that is to say that enlarged portion 21 cannot
It is flexible, do not do unique restriction herein.
Further, Fig. 1 and Fig. 9 is please referred to, a kind of specific reality as hypodermic tunnel constructing apparatus provided by the invention
Mode is applied, above-mentioned support of tunnel pipe 3 has the extension end 31 for stretching out hypodermic tunnel 8, and hypodermic tunnel constructing apparatus further includes fixing
Folder 4, fixing clamp 4 are securable on extension end 31 and for skin 6 to be fixed in extension end 31.In the present embodiment, above-mentioned
Fixing clamp 4 is to puncture inner core 1 after hypodermic tunnel 8 is completed and obtuse expander 2 is extracted out from support of tunnel pipe 3, and tunnel
After road support tube 3 extracts extension end 31 from tunnel exit 80, then fixing clamp 4 is fixed on skin 6 by adhesive plaster etc.,
The medical catheter 5 being located in support of tunnel pipe 3 is made also to have obtained fixation in this way, to guarantee 5 the operation is stable of medical catheter.
Further, referring to Fig. 9, a kind of specific embodiment party as hypodermic tunnel constructing apparatus provided by the invention
Formula, for above-mentioned fixing clamp 4 in butterfly-like, fixing clamp 4 includes interconnecting piece 41 and two fixed parts 42, and interconnecting piece 41 is in semi-cylindrical, and two
Fixed part 42 is set to the opposite sides of interconnecting piece 41, and interconnecting piece 41 can be sheathed on extension end 31, and two fixed parts 42 can be attached at
On skin 6, then fixing clamp 4 is fixed on skin 6 by adhesive plaster.The present embodiment passes through the design of two fixed parts 42, so that
Contact surface between entire fixing clamp 4 and skin 6 is bigger, to increase the stationary plane of fixing clamp 4, ensure that extension end 31 exists
Fixation on skin 6, and then ensure that 5 the operation is stable of medical catheter.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. hypodermic tunnel constructing apparatus characterized by comprising
Inner core is punctured, forms point of puncture for puncturing skin；
Obtuse expander is movably set on the puncture inner core, and the obtuse expander is used for along the puncture node expansion
Subcutaneous tissue is to form hypodermic tunnel；
Support of tunnel pipe is movably set on the obtuse expander, and the support of tunnel pipe is for being supported in the subcutaneous tunnel
It is bent in road with preventing medical catheter from being oppressed by the subcutaneous tissue.
2. hypodermic tunnel constructing apparatus as described in claim 1, which is characterized in that the puncture inner core includes for puncturing
The puncture tube of skin is stated, and the handle for connecting with the puncture tube and being used to hold for hand.
3. hypodermic tunnel constructing apparatus as claimed in claim 2, which is characterized in that one end of the puncture tube has for piercing
The tartar of the skin is broken, the tartar is in tip-like, and the handle is set to the other end of the puncture tube.
4. hypodermic tunnel constructing apparatus as claimed in claim 3, which is characterized in that the obtuse expander, which has, to be axially penetrated through
Central bore, the internal diameter of the central bore is greater than the outer diameter of the puncture tube, and the central bore is sheathed on the puncture
Guan Shang, the puncture tube can be set in the central bore and move along its axis, and the tartar can be retracted and extended described
One end of central bore, the handle can backstop in the other end of the central bore.
5. hypodermic tunnel constructing apparatus as claimed in claim 4, which is characterized in that the obtuse expander includes for expanding
The enlarged portion of the subcutaneous tissue, and the limiting section of the handle is connect and is used to limit with the enlarged portion, the center
Inner hole axially penetrates through the enlarged portion and the limiting section, and the support of tunnel pipe is movably set in the enlarged portion.
6. hypodermic tunnel constructing apparatus as claimed in claim 5, which is characterized in that the central bore includes running through the expansion
The expanded bore in portion, and the limit hole of the limiting section is communicated and run through with the expanded bore, the internal diameter of the limit hole by
The expanded bore is gradually increased to the other end of the central bore, and the handle can be plugged and is limited in the limit hole.
7. hypodermic tunnel constructing apparatus as claimed in claim 5, which is characterized in that described enlarged portion one end has for guiding
The enlarged portion enters the boot segment of the point of puncture, and connect with the boot segment and be used to expand the subcutaneous tissue
The outer surface of expansion segment, the boot segment and the expansion segment is in circular conical surface, and the cone angle of the boot segment is greater than the expansion
Open the cone angle of section.
8. hypodermic tunnel constructing apparatus as claimed in claim 5, which is characterized in that the enlarged portion be can axial stretching stretch
Heat-Shrinkable Tubings.
9. hypodermic tunnel constructing apparatus as claimed in claim 5, which is characterized in that the support of tunnel pipe has described in stretching
The extension end of hypodermic tunnel, the hypodermic tunnel constructing apparatus further include for the extension end to be fixed on the skin
Fixing clamp.
10. hypodermic tunnel constructing apparatus as claimed in claim 9, which is characterized in that the fixing clamp includes that can be sheathed on institute
State the interconnecting piece on extension end, and set on the interconnecting piece opposite sides and the fixed part that can be attached on skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241197.6A CN110292419A (en) | 2018-03-22 | 2018-03-22 | Hypodermic tunnel constructing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241197.6A CN110292419A (en) | 2018-03-22 | 2018-03-22 | Hypodermic tunnel constructing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN110292419A true CN110292419A (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810241197.6A Pending CN110292419A (en) | 2018-03-22 | 2018-03-22 | Hypodermic tunnel constructing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960298A (en) * | 2019-12-10 | 2020-04-07 | 胡桂菊 | Subcutaneous tunnel establishment tool in tunnel type PICC (peripherally inserted central catheter) catheterization and use method thereof |
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| US5944732A (en) * | 1997-08-27 | 1999-08-31 | Medical Components, Inc. | Subcutaneous tunnelling device and methods of forming a subcutaneous tunnel |
| EP1468652A1 (en) * | 2003-04-16 | 2004-10-20 | Paul M. Tsou | Apparatus for endoscopic spinal surgery |
| CN201642253U (en) * | 2010-04-29 | 2010-11-24 | 江兴华 | Spinal puncture tunnel guide external member |
| CN103007416A (en) * | 2011-09-20 | 2013-04-03 | 武汉金至园科技有限公司 | Percutaneous renal puncture expansion tube with changeable front end shape |
| CN202446142U (en) * | 2012-02-01 | 2012-09-26 | 高桃 | Subcutaneous tunnel cleaning rod |
| US9161775B1 (en) * | 2012-05-08 | 2015-10-20 | Greatbatch Ltd. | Tunneling tool for deliberate placement of an ILR |
| JP2016195678A (en) * | 2015-04-03 | 2016-11-24 | 国立大学法人滋賀医科大学 | Puncture needle for subcutaneous tunnel |
| CN208640848U (en) * | 2018-03-22 | 2019-03-26 | 深圳市擎源医疗器械有限公司 | Hypodermic tunnel constructing apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960298A (en) * | 2019-12-10 | 2020-04-07 | 胡桂菊 | Subcutaneous tunnel establishment tool in tunnel type PICC (peripherally inserted central catheter) catheterization and use method thereof |
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