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 artIt 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, wrapIt 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 punctureSubcutaneous 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 skinIt 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 tubeThe 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 thanThe 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 boreIn and move along its axis, the tartar can be retracted and one end of the extended central bore, the handle can backstop in instituteState the other end of central bore.
Further, the obtuse expander includes the enlarged portion for expanding the subcutaneous tissue, and with the expansionThe 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 limitPortion, 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 boreAnd 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 byCumulative 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 outerSurface 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 constructionDevice 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 connectionPortion'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 inventionFor 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 coreLesser point of puncture, to reduce wound infection probability；Obtuse expander forms subcutaneous tunnel using the mode of expansion subcutaneous tissueRoad significantly reduces so that isolating of being subject to of subcutaneous tissue injures contusion, reduces bleeding；Support of tunnel pipe can be in subcutaneous tunnelMedical 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 byObtuse 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 madeIt obtains when constructing hypodermic tunnel, does not need frequently puncture inner core or obtuse expander is dismantled or pacified from support of tunnel pipeDress, so that structure is easy to assembly, and prevents structural damage caused by due to frequently dismounting.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie belowAccompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is onlyTo 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 elementOn one element or indirectly on another element.When an element is known as " being connected to " another element, it canTo 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 closedSystem, 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 haveSpecific 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 importanceOr implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed orImplicitly 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 tunnelRoad 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 operationThorn point 9.Hypodermic tunnel constructing apparatus includes puncturing inner core 1, obtuse expander 2 and support of tunnel pipe 3,2 activity of obtuse expanderIt 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 skinAt 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 3It 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 inventionTunnel construction device specific working mode is as follows: being movably set in obtuse expander 2 puncture on inner core 1 first, and by tunnelSupport 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 obtuseExpander 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 wornPierce 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 exit80, 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 expandsProp 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 exitAllocate out and reserved 1-3cm length support in hypodermic tunnel 8 as medical catheter 5, when medical catheter 5 works, can directly fromIt 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 inventionBy 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 1Point 9, to reduce wound infection probability；Obtuse expander 2 forms hypodermic tunnel 8 using the mode of expansion subcutaneous tissue 7, thusSo 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 8Medical 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 byObtuse 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 2Meter, so that not needing frequently puncture inner core 1 or obtuse expander 2 from support of tunnel pipe 3 when constructing hypodermic tunnel 8Disassembly 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 inventionMode, 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 12The 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 11Be 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 atThis, and the processing is simple.Certainly, in other embodiments of the invention, according to the actual situation and specific requirement, above-mentioned puncture tube 11It is also possible to be separately formed with handle 12, is then fixedly connected by fastener or stickers, does not do unique limit hereinIt 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 inventionMode 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, thornFirst 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 111In 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 inventionMode, 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 11Diameter, 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, tartar111 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 thisIn inventive embodiments, when general work state, central bore 20 is sheathed on puncture tube 11, and 111 retraction central bore of tartar20 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 handleHand 12 moves axially puncture tube 11 in central bore 20, until tartar 111 stretches out one end of central bore 20 and punctures skinSkin 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 thornIn 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 inventionBody embodiment, above-mentioned obtuse expander 2 include enlarged portion 21 and limiting section 22, and enlarged portion 21 is limited for expanding subcutaneous tissue 7Position 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 20Portion 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 notIt 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 limitingThe bending strength of handle 12 is enhanced while handle 12, to prevent when puncture inner core 1 punctures skin 6, handle 12It 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 22Limit 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 20It 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 andInternal 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 coneShape, 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 220When 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 inventionMode 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 connectsBe 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 outerSurface 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 angleLesser expansion segment 212 expands subcutaneous tissue 7, in this way, not only guarantee that enlarged portion 21 can rapidly enter point of puncture 9, andExpansion 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 dressThe 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 reducedDamage and infection probability.Certainly, in other embodiments of the invention, according to the specific requirements of construction hypodermic tunnel, above-mentioned expansionPortion 21 may not be the telescopic sleeve including three sleeves, but only one sleeve, that is to say that enlarged portion 21 cannotIt 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 inventionMode 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 fixingFolder 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-mentionedFixing 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 tunnelAfter 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 inventionFormula, 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 twoFixed 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 atOn 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 thatContact 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 existsFixation 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 inventionMade any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.