CN207125935U - The hemodialysis catheter that can be punctured - Google Patents
The hemodialysis catheter that can be punctured Download PDFInfo
- Publication number
- CN207125935U CN207125935U CN201720198855.9U CN201720198855U CN207125935U CN 207125935 U CN207125935 U CN 207125935U CN 201720198855 U CN201720198855 U CN 201720198855U CN 207125935 U CN207125935 U CN 207125935U
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- Prior art keywords
- puncture tube
- repeatedly
- catheter
- punctured
- main body
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- 238000001631 haemodialysis Methods 0.000 title claims abstract description 46
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 43
- 230000000717 retained effect Effects 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 229920004933 Terylene® Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000023597 hemostasis Effects 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000000502 dialysis Methods 0.000 abstract description 17
- 238000007920 subcutaneous administration Methods 0.000 abstract description 10
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 230000002980 postoperative effect Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000000338 in vitro Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000004731 jugular vein Anatomy 0.000 description 11
- 210000003462 vein Anatomy 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 210000001321 subclavian vein Anatomy 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003191 femoral vein Anatomy 0.000 description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 2
- 230000000202 analgesic effect Effects 0.000 description 2
- 229940030225 antihemorrhagics Drugs 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000025 haemostatic effect Effects 0.000 description 2
- 229960002897 heparin Drugs 0.000 description 2
- 229920000669 heparin Polymers 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 238000002627 tracheal intubation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010064687 Device related infection Diseases 0.000 description 1
- 206010018999 Haemorrhage subcutaneous Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000003109 clavicle Anatomy 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000037257 muscle growth Effects 0.000 description 1
- 235000016236 parenteral nutrition Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The hemodialysis catheter that can be punctured, it is related to medical equipment technical field, it include being used for the venous catheter main body of indwelling and for be retained in it is subcutaneous can puncture tube repeatedly, can the front end of puncture tube repeatedly be connected to catheter main body and communicated with the cavity inside catheter main body, can puncture tube repeatedly endcapped, can be additionally provided with repeatedly on puncture tube for it in the conduit fixed structure subcutaneously fixed.The above-mentioned hemodialysis catheter punctured is simpler compared to existing dialysis catheter overall structure; it is postoperative puncture tube to be fixed on repeatedly in hypodermic tunnel; surface cannula port available line sutures; conduit buries subcutaneously without exposed part in vitro completely; thus significantly reduce infection rate; reduce and laundry hits/pull conduit are worn off because patient is daily cause the probability of catheter displacement; substantially increase the convenience of patient's daily routines; because whole dialysis catheter is without external part; aesthetic property is preferable, is also beneficial to mitigate the psychological burden of patient.
Description
Technical field
Medical equipment technical field is the utility model is related to, more particularly to a kind of hemodialysis catheter punctured.
Background technology
In blood dialysis, dialysis catheter is a kind of conventional medical equipment.Common dialysis catheter is shown in Fig. 1
Double channel catheter, including double channel catheter main body 1（Dividing plate is provided with pipe inner chamber is separated into two cavities independent of each other, one
Digestive tract bleeding, a cavity enter blood）And it is connected to the joint 2 on the top of double channel catheter main body 1, butterfly folder 3, two external branch pipes
4 are connected by joint 2 with double channel catheter main body 1, in addition, existing double channel catheter also includes the calparine cap 5 for being connected to external branch pipe 4
And for clamping the grade part of tube clamp 6 of external branch pipe 4.
The more common central vein in hemodialysis has：Jugular vein, subclavian vein and femoral vein, are dialysed using double channel catheter
When, double channel catheter main body 1 is retained in central vein, the part of joint 2 and the above（Including two external branch pipes 4）It is placed in body
Outside and skin surface is bonded at by medical proof fabric to be fixed（As shown in Figure 2, the dotted portion subcutaneous tunnel of conduit is inserted in figure
Enter in vein, bold portion exposes outside body）.Double channel catheter is exposed at external part and wears off clothes and other days to patient
Normal activity brings great inconvenience, often will accidentally touch external branch pipe 4, and the collision of great dynamicses/pullled can
The displacement of double channel catheter main body 1 can be caused or even be sliding out coming from central vein.In addition, the external part of conduit has an effect on U.S.
See, heavier psychological burden is brought to patient.More the serious is due to its in dialysis catheter in addition to double channel catheter main body 1
It is partly placed in vitro, catheter exit site infection and hypodermic tunnel infection, or even catheter infections, serious sense easily occur
Dye needs tube drawing to handle.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of overall structure, and simply, after intubation support pipe free is placed in vitro
The hemodialysis catheter punctured.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：A kind of haemodialysis punctured
Conduit, including for the venous catheter main body of indwelling and for be retained in it is subcutaneous can puncture tube repeatedly, it is described can be anti-
The front end of multiple puncture tube is connected to catheter main body and communicated with the cavity inside catheter main body, it is described can puncture tube repeatedly end
Closing, it is described can be additionally provided with repeatedly on puncture tube for it in the conduit fixed structure subcutaneously fixed.
In one embodiment of the present utility model, the hemodialysis catheter punctured, which includes two, to be punctured repeatedly
Pipe and a catheter main body, are provided with two cavities inside the catheter main body, described two can repeatedly puncture tube each correspond to and
A cavity inside catheter main body communicates.
In another embodiment of the present utility model, the hemodialysis catheter punctured, which includes two, to be worn repeatedly
Thorn is managed and two catheter main bodies, and a cavity is equipped with inside the catheter main body, and every can the corresponding connection of puncture tube repeatedly
In a catheter main body.
In the above-described embodiments, it is described can repeatedly puncture tube include outer layer made of expanded PTFE or polyurethane and
Internal layer, is provided with intermediate layer between the outer layer and internal layer, the intermediate layer is the elastic silica gel for pulling out the hemostasis that can bounce back immediately after pin
Layer pulls out macromolecular material layer capable of self-healing after pin.
Preferably, the conduit fixed structure include being used for by two can the end of puncture tube repeatedly be fixedly attached together
Connector.
Further, the connector can puncture the pin thread of pipe end repeatedly and be fixedly connected including being fixedly connected on one
So that two puncture tube can be connected to repeatedly in the box that another can puncture pipe end repeatedly, the pin thread insertion box
Together.
Further, it is described can the end of puncture tube repeatedly blocked by the partition in its inner chamber, it is described can be anti-
The tube wall of multiple puncture tube up extends above partition and forms lock installation cavity for installing pin thread and box, the pin thread and mother
Button is separately mounted to one can be repeatedly in the lock installation cavity of puncture tube, and the pin thread includes one and inserted toward the bar shaped of outer lug
Head, the box include a slot matched with bar shaped insertion head, and the outer peripheral face of the bar shaped insertion head is provided with sheet
Flank, the outer of the sheet flank flushes in can puncture tube outer peripheral face or positioned at can be repeatedly in puncture tube outer peripheral face repeatedly
Side, after the bar shaped insertion head inserts slot, the sheet flank exposes outside box, offers and wears on the sheet flank
String holes, by the sheet flank after skin closure is together with can to it is described can repeatedly puncture tube end carry out it is spacing solid
It is fixed.
Preferably, include being fixedly connected on can the sheet of puncture tube front end and/or end repeatedly for the conduit fixed structure
Flank, offer threading hole on the sheet flank, by the sheet flank after skin closure is together with can to it is described can
Puncture tube fixes repeatedly.
Preferably, the conduit fixed structure include fixed be set in can the terylene of puncture tube front end and/or end repeatedly
The collar.
As preferred embodiment, it is described can repeatedly puncture tube outer peripheral face be provided with it is annular and/or spiral recessed
Groove.
The hemodialysis catheter provided by the utility model punctured compares existing dialysis catheter（Such as in background technology
Double channel catheter）It is simpler to eliminate part, its overall structure such as butterfly folder, calparine cap and tube clamp.More importantly it is,
When doing Central venous catherization using the utility model, postoperative to bury in hypodermic tunnel fixed by puncture tube repeatedly, surface is inserted
Mouth of pipe available line sutures, thus significantly reduces infection rate.Further, since conduit is hidden in subcutaneously, reduces and worn because patient is daily
De- laundry hits/pull conduit cause the probability of catheter displacement, substantially increase the convenience of patient's daily routines, hemodialysis starts
When punctured into by syringe needle through skin can be repeatedly in puncture tube, dialysis is completed and pulls out pin pressing haemostatic after heparin water sealing (sealing water) pipe,
Later stage dialysis cost is low compared with existing conduit and nursing is simpler（Existing dialysis catheter all needs to change calparine cap after dialysing every time
With conduit skin exit dressing bag, and also conduit skin exit site, pipe joint and exit are carried out disinfection every time
Processing）.Finally, due to above-mentioned puncture tube can be hidden in subcutaneously repeatedly, for whole dialysis catheter without external part, aesthetic property is preferable,
Be advantageous to mitigate the psychological burden of patient.
Brief description of the drawings
Fig. 1 is the overall structure diagram of double channel catheter in the prior art；
Fig. 2 is double channel catheter jugular vein and subclavian vein individually put pipe schematic diagram in the prior art；
Fig. 3 is the overall structure diagram for the hemodialysis catheter that can be punctured in embodiment 1；
Fig. 4 is the overall structure diagram for the hemodialysis catheter that can be punctured in embodiment 2；
Fig. 5 is individually to put pipe signal using the hemodialysis catheter jugular vein or subclavian vein that can be punctured shown in Fig. 3
Figure；
Fig. 6 is using the hemodialysis catheter jugular vein and subclavian vein that can be punctured shown in Fig. 4 while puts pipe signal
Figure；
Fig. 7 is using the hemodialysis catheter both sides jugular vein that can be punctured shown in Fig. 4 while puts pipe schematic diagram；
Fig. 8 is using the hemodialysis catheter both sides femoral vein that can be punctured shown in Fig. 4 while puts pipe schematic diagram；
Fig. 9 be in the utility model can puncture tube repeatedly cross-sectional structure schematic diagram；
Figure 10 be in the hemodialysis catheter that can puncture shown in Fig. 3 two can puncture repeatedly pipe end will by pin thread and
Overall structure diagram when box connects；
Figure 11 be in the hemodialysis catheter that can puncture shown in Fig. 3 two can puncture pipe end repeatedly and pass through pin thread and box
Overall structure diagram after connection；
Figure 12 is the partial enlarged drawing at A positions in Figure 10；
Figure 13 is the partial enlarged drawing at B positions in Figure 10；
Figure 14 is the partial enlarged drawing at A positions in Figure 11；
In figure：
1 --- double channel catheter main body 2 --- joint 3 --- butterfly folder
4 --- external conduit 5 --- calparine cap 6 --- tube clamps
10 --- catheter main body 11 --- can repeatedly puncture tube 11a --- outer layers
11b --- internal layer 11c --- intermediate layer 11d --- partitions
12a --- connector 12b --- sheet flank 12c --- terylene collars
--- head is inserted in pin thread 12a2 --- box 12a1a --- bar shaped to 12a1
12a2a --- slot.
Embodiment
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", " top ", " bottom ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
As shown in Fig. 3,4,10-14, a kind of hemodialysis catheter punctured, including for the venous conduit of indwelling
Main body 10 and for be retained in it is subcutaneous can puncture tube 11 repeatedly, can the front end of puncture tube 11 repeatedly be connected to catheter main body 10
And communicated with the cavity inside catheter main body 10, can puncture tube 11 repeatedly endcapped, can be additionally provided with repeatedly on puncture tube 11
For to it in the conduit fixed structure subcutaneously fixed.
It should be noted that in the utility model, in addition to the structure of example 1 below and embodiment 2, the blood that can puncture
Liquid dialysis catheter also includes but is not limited to following structure（Structure described below is not shown in the accompanying drawings）：Such as catheter main body 10
Inside be provided with 3 cavities, connected on the top of catheter main body 10 3 can puncture tube 11 repeatedly, every can the correspondence of puncture tube 11 repeatedly
Connected with a cavity, it is long-term that one of cavity is used as haemocoele, a cavity to be used as haemocoele, the 3rd cavity can be used as
Approach is given in parenteral nutrition, long-term injection of antibiotic, the injection of chronic analgesic medicine.Certainly, the above-mentioned conduit master for including 3 cavities
The diameter of body 10 is thicker, and during actual use, it is not useable for subclavian vein intubation, but the neck relatively thick available for vessel diameter
Internal jugular vein.In addition, the above-mentioned hemodialysis catheter punctured can also use following structure：Such as it includes two catheter main bodies
10, a catheter main body 10 is interior to be provided with 2 cavities, and one of cavity is into haemocoele, and another cavity is as long-term parenteral battalion
Support, long-term injection of antibiotic, approach is given in the injection of chronic analgesic medicine, on the top pair of catheter main body 10 that this includes 2 cavities
Should connect two can puncture tube 11 repeatedly, every can puncture tube 11 be corresponding repeatedly be connected with 1 cavity；Another catheter main body 10
1 cavity is inside set, the cavity corresponds to connection one and its as haemocoele is gone out, on the top of catheter main body 10 that this includes 1 cavity
Internal passage connection can puncture tube 11 repeatedly, the catheter main body 10 provided with 2 cavities is used to insert jugular vein, provided with 1 chamber
The catheter main body 10 in road inserts the jugular vein of subclavian vein or opposite side.
From the above, it can be seen that the hemodialysis catheter provided by the utility model punctured compares existing dialysis
Conduit（Such as the double channel catheter in background technology）The parts such as butterfly folder 3, calparine cap 5 and tube clamp 6 are eliminated, it is integrally tied
Structure is simpler.More importantly it is, it is postoperative to bury puncture tube 11 repeatedly when doing Central venous catherization using the utility model
It is fixed in hypodermic tunnel, the suture of surface cannula port available line, thus significantly reduce infection rate.Further, since conduit is hidden in
Subcutaneously, reduce and laundry hits/pull conduit are worn off because patient is daily cause the probability of catheter displacement, substantially increase patient's day
The often convenience of activity, being punctured into when hemodialysis starts by syringe needle through skin can be repeatedly in puncture tube 11, and dialysis is completed and heparin
Pin pressing haemostatic is pulled out after water sealing (sealing water) pipe, later stage dialysis cost is low compared with existing conduit and nursing is simpler（Existing dialysis is led
Pipe all needs to change calparine cap 5 and conduit skin exit dressing bag after dialysing every time, and every time will also be to conduit skin export department
Position, pipe joint and exit carry out disinfection processing）.Finally, due to above-mentioned puncture tube 11 can be hidden in subcutaneously repeatedly, whole dialysis
For conduit without external part, aesthetic property is preferable, is also beneficial to mitigate the psychological burden of patient.
For the ease of the understanding of those skilled in the art, with accompanying drawing the utility model is made with reference to two embodiments into
The explanation of one step.
Embodiment 1：
As shown in Figure 3, a kind of hemodialysis catheter punctured, including two be used to be retained in subcutaneous to puncture repeatedly
Pipe 11 and one are used for the venous catheter main body 10 of indwelling, and the inside of catheter main body 10 is provided with two cavities, and two can be repeatedly
Puncture tube 11 is each corresponding to be communicated with a cavity inside catheter main body 10, can puncture tube 11 repeatedly endcapped, can be anti-
Be additionally provided with multiple puncture tube 11 for it in the conduit fixed structure subcutaneously fixed.
The above-mentioned hemodialysis catheter punctured can be selected and put pipe mode shown in Fig. 5（Dotted line is to bury in subcutaneous tunnel in figure
In road can repeatedly puncture tube 11 and insertion vein in catheter main body 10）, catheter main body 10 inserts jugular vein or clavicle
Lower vein, two can repeatedly puncture tube 11 insert it is in the hypodermic tunnel accomplished fluently and fixed, it is noted that after fixed can be anti-
Multiple 11 each turning site of puncture tube must assure that the situation that sharp turn/bending must not gently occur, finally by surface cannula port line
Suture（Stated to simplify, other Conventional processing steps such as cleaning, sterilization all omit, are not described specifically）.
Embodiment 2：
As shown in Figure 4, a kind of hemodialysis catheter punctured, including two be used to be retained in subcutaneous to puncture repeatedly
Pipe 11 and two are used for the venous catheter main body 10 of indwelling, are equipped with a cavity inside catheter main body 10, every can be anti-
Multiple puncture tube 11 is correspondingly connected to a catheter main body 10, can puncture tube 11 repeatedly endcapped, can puncture tube 11 repeatedly
On be additionally provided with for it in the conduit fixed structure subcutaneously fixed.
The above-mentioned hemodialysis catheter punctured can be selected and put pipe mode shown in Fig. 6（Dotted line is to bury in subcutaneous tunnel in figure
In road can repeatedly puncture tube 11 and insertion vein in catheter main body 10）, an insertion jugular vein of catheter main body 10, separately
Piece catheter main body 10 inserts subclavian vein, and what is connected on two catheter main bodies 10 puncture tube 11 can respectively insert and accomplish fluently repeatedly
Hypodermic tunnel in and it is fixed, in the same manner as in Example 1, it is fixed after can repeatedly 11 each turning site of puncture tube should be guaranteed that it is flat
It is slow, the situation of sharp turn/bending must not occur, finally again close surface cannula port with linear slit（Stated to simplify, cleaning, sterilization etc.
Other Conventional processing steps all omit, are not described specifically）.
In addition, the above-mentioned hemodialysis catheter punctured, which also can be selected shown in Fig. 7, puts pipe mode（In figure dotted line for bury in
In hypodermic tunnel can repeatedly puncture tube 11 and insertion vein in catheter main body 10）, two catheter main bodies 10 insert respectively
Both sides jugular vein, what is connected on two catheter main bodies 10 can insert the hypodermic tunnel accomplished fluently respectively by puncture tube 11 repeatedly（Subcutaneously
Tunnel is across neck）In and it is fixed, with it is foregoing put pipe mode as, it is fixed after can 11 each turning site of puncture tube should repeatedly
Ensure gently, the situation of sharp turn/bending must not occur, finally again close surface cannula port with linear slit（Stated to simplify, cleaning,
Other Conventional processing steps such as sterilization all omit, are not described specifically）.
In addition, the above-mentioned hemodialysis catheter punctured, which also can be selected shown in Fig. 8, puts pipe mode（In figure dotted line for bury in
In hypodermic tunnel can repeatedly puncture tube 11 and insertion vein in catheter main body 10）, two catheter main bodies 10 insert respectively
Both sides femoral vein, what is connected on two catheter main bodies 10 can insert the hypodermic tunnel accomplished fluently respectively by puncture tube 11 repeatedly（Subcutaneous tunnel
Road is across belly）In and it is fixed, with it is foregoing any one put pipe mode as, it is fixed after can 11 each turning part of puncture tube repeatedly
Position should be guaranteed that gently, not may occur in which the situation of sharp turn/bending, finally again closes surface cannula port with linear slit（Stated to simplify,
Other Conventional processing steps such as cleaning, sterilization all omit, are not described specifically）.
In above-described embodiment 1 and 2, to avoid surface smooth（Smooth surface is more conducive to penetrate hypodermic tunnel）Can be anti-
Multiple puncture tube 11 down sliding transfer in hypodermic tunnel, above-mentioned conduit fixed structure includes being used for can puncture tube repeatedly by two
The connector 12a that 11 end is fixedly attached together.Skin around hypodermic tunnel is tightly connected with muscle not to be separated, by two
Root can puncture tube 11 repeatedly end be fixedly attached together after, due to hypodermic tunnel surrounding skin and the barrier effect of muscle,
Can preferably limit can puncture tube 11 repeatedly position, avoid two can all down sliding causes conduit master to puncture tube 11 repeatedly
Body 10 inserts the too deep situation of vein.
Preferably, as shown in Figure 10-12 and Figure 14（Structure using Figure 10-12 and Figure 14 to connector 12a herein
Illustrate, although the hemodialysis catheter that can be punctured in Figure 10-12 and Figure 14 uses the structure of embodiment 1, needs carry
Wake up those skilled in the art it is noted that structure shown in above-mentioned accompanying drawing connector 12a be not be only limited to used in embodiment 1 can
On the hemodialysis catheter of puncture, it is equally applicable in the application other embodiments）, connector 12a is including being fixedly connected
One can repeatedly the pin thread 12a1 of the end of puncture tube 11 and be fixedly connected on another can the end of puncture tube 11 repeatedly mother
12a2 is detained, pin thread 12a1 is inserted in box 12a2 so as to which two puncture tube 11 can be connected together repeatedly.It should be noted that
When connector 12a uses buckle structure, it is necessary to can hypodermic tunnel surface notch residing for the end of puncture tube 11 repeatedly, so
It can be operated by human hand and insert pin thread 12a1 in box 12a2, again close the otch with linear slit after snapping connection.Need spy
Although not, it is emphasized that the utility model not to be between pin thread 12a1 and box 12a2 how to be connected together and the two phase
The attachment structure mutually coordinated is what kind of elaborates, but it will be appreciated by those skilled in the art that, above-mentioned pin thread 12a1 with
Box 12a2 concrete structure can be selected as needed in the prior art, a variety of achievable sheets in the prior art be present
Apply for the buckle structure of goal of the invention, these can realize that the buckle structure of goal of the invention can be applied to the application in theory.
Specifically, see Figure 12, it is above-mentioned can the end of puncture tube 11 repeatedly pass through the partition 11d closure in its inner chamber
Firmly, can the tube wall of puncture tube 11 repeatedly up extend above partition 11d and form lock for installing pin thread 12a1 and box 12a2
Detain installation cavity, pin thread 12a1 and box 12a2 each correspond to be arranged on one can be public repeatedly in the lock installation cavity of puncture tube 11
Detain 12a1 and include one and insert head 12a1a toward the bar shaped of outer lug, box 12a2 include one matched with bar shaped insertion head 12a1a it is slotting
Groove 12a2a, bar shaped insertion head 12a1a outer peripheral face are provided with sheet flank 12b, and sheet flank 12b outer flushes in can be anti-
The multiple outer peripheral face of puncture tube 11 or positioned at can the outer peripheral face of puncture tube 11 repeatedly inner side, as shown in Figure 14, bar shaped insertion head 12a1a is inserted
After entering slot 12a2a, sheet flank 12b exposes outside box 12a2, threading hole is offered on sheet flank 12b, by sheet
Flank 12b after skin closure is together with can pair can the end of puncture tube 11 repeatedly fix.By sheet flank 12b
Being arranged on bar shaped insertion head 12a1a outer peripheral faces and limit that its outer flushes in can the outer peripheral face of puncture tube 11 or positioned at can be anti-repeatedly
Following benefit be present on the inside of the multiple outer peripheral face of puncture tube 11：1st, being set directly at compared to sheet flank 12b can be repeatedly outside puncture tube 11
On side face, above-mentioned be arranged on bar shaped insertion head 12a1a outer peripheral faces and limit that its outer flushes in sheet flank 12b can be repeatedly
The outer peripheral face of puncture tube 11 penetrates hypodermic tunnel positioned at that can be more conducive to pipeline on the inside of the outer peripheral face of puncture tube 11 repeatedly, during poling
Be not in that sheet flank 12b scratches/pullled the situation of hypodermic tunnel wall, be advantageous to mitigate hypodermic tunnel damage, reduce it is subcutaneous
Bleeding.2nd, after bar shaped insertion head 12a1a insertion slots 12a2a, sheet flank 12b exposes outside box 12a2 so that two
There can be a gap between the end of puncture tube 11 repeatedly, postoperative muscle can be gradually grown into the gap, and this is for can be repeatedly
The fixation of the end of puncture tube 11 is also good.
In all embodiments of the present utility model, it is preferred that above-mentioned to be tied repeatedly using shown in Fig. 9 puncture tube 11
Structure：It includes outer layer 11a made of expanded PTFE or polyurethane and internal layer 11b, is set between outer layer 11a and internal layer 11b
It is to pull out the flexible silicon glue-line for the hemostasis that can bounce back immediately after pin or pull out high score capable of self-healing after pin to have intermediate layer 11c, intermediate layer 11c
Elastic material layer.
In addition, as shown in Figure 12-14（Illustrated herein using Figure 12-14 pairs of conduit fixed structures, although Figure 12-14
For Figure 10 and 11 partial enlarged drawing, and the hemodialysis catheter that can be punctured in Figure 10 and 11 uses the structure of embodiment 1, but needs
Those skilled in the art are reminded it is noted that the conduit fixed structure of structure shown in accompanying drawing 12-14 is not only limited to be used in fact
Apply on the hemodialysis catheter punctured of example 1, it is equally applicable in the application other embodiments）, in the utility model
All embodiments in, conduit fixed structure includes being fixedly connected on can the sheet of the front end of puncture tube 11 and/or end repeatedly
Flank 12b（For using buckle structure by two can the end of puncture tube 11 connects together repeatedly in the case of, as before
Shown in content and Figure 12 and 14, can the sheet flank 12b of the end of puncture tube 11 repeatedly need to only be located at pin thread 12a1 bar shaped insertion
, can the end outer peripheral face of puncture tube 11 repeatedly without being arranged on head 12a1a）, threading is offered on sheet flank 12b
Hole, sheet flank 12b pair puncture tube 11 can be fixed repeatedly after skin closure is together with.
It is also preferred that as shown in Figure 12 and 14, in all embodiments of the present utility model, conduit fixed structure bag
Including fixed be set in can the terylene collar 12c of the front end of puncture tube 11 and/or end repeatedly（The terylene collar is in the field of business also referred to as
“cuff”）.Terylene collar 12c can help fixation can puncture tube 11 repeatedly, reduce the probability of conduit sliding transfer, it is specific and
Speech, because terylene collar 12c is formed using terylene woven, minim gap between fiber be present, indwelling after subcutaneous a period of time, with
The growth of muscle, it gradually can be with muscle adhesion together with, therefore can help fixation can puncture tube 11 repeatedly well.
Finally, in the utility model, can the outer peripheral face of puncture tube 11 repeatedly be provided with annular and/or spiral groove
（The annular and/or spiral groove is not shown in the accompanying drawings）.Can be opened up repeatedly on the outer peripheral face of puncture tube 11 annular and/
Or the purpose of spiral groove also play a part of help can 11 spacing fixation of puncture tube repeatedly, when postoperative muscle growth insert groove
In after can preferably avoid puncture tube 11 can sliding/rotating repeatedly.
Above-described embodiment is the preferable implementation of the utility model, and in addition, the utility model can be with other sides
Formula is realized, any on the premise of the technical program design is not departed from obviously to replace in protection model of the present utility model
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the utility model relative to prior art improvement it
Place, some accompanying drawings of the present utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, those of ordinary skill in the art should be aware that these elements omitted also may make up in of the present utility model
Hold.
Claims (10)
1. the hemodialysis catheter that can be punctured, including for the venous catheter main body of indwelling（10）And for being retained in skin
Under can puncture tube repeatedly（11）, it is described can puncture tube repeatedly（11）Front end be connected to catheter main body（10）And and catheter main body
（10）Internal cavity communicates, it is described can puncture tube repeatedly（11）Endcapped, it is described can puncture tube repeatedly（11）On also set
Have for it in the conduit fixed structure subcutaneously fixed.
2. the hemodialysis catheter according to claim 1 punctured, it is characterised in that：The haemodialysis punctured
Conduit includes two can puncture tube repeatedly（11）With a catheter main body（10）, the catheter main body（10）Inside is provided with two chambers
Road, described two can puncture tube repeatedly（11）Each corresponding and catheter main body（10）An internal cavity communicates.
3. the hemodialysis catheter according to claim 1 punctured, it is characterised in that：The haemodialysis punctured
Conduit includes two can puncture tube repeatedly（11）With two catheter main bodies（10）, the catheter main body（10）Inside is equipped with one
Cavity, every can puncture tube repeatedly（11）It is correspondingly connected to a catheter main body（10）.
4. the hemodialysis catheter punctured according to any one in claim 1-3, it is characterised in that：It is described can be anti-
Multiple puncture tube（11）Including outer layer made of expanded PTFE or polyurethane（11a）And internal layer（11b）, the outer layer
（11a）And internal layer（11b）Between be provided with intermediate layer（11c）, the intermediate layer（11c）To pull out the bullet for the hemostasis that can bounce back immediately after pin
Property layer of silica gel pulls out macromolecular material layer capable of self-healing after pin.
5. the hemodialysis catheter punctured according to Claims 2 or 3, it is characterised in that：The conduit fixed structure
Including for can puncture tube repeatedly by two（11）The connector that is fixedly attached together of end（12a）.
6. the hemodialysis catheter according to claim 5 punctured, it is characterised in that：The connector（12a）Including
Being fixedly connected on one can puncture tube repeatedly（11）The pin thread of end（12a1）And it is fixedly connected on another and can punctures repeatedly
Pipe（11）The box of end（12a2）, the pin thread（12a1）Insert box（12a2）In so as to can puncture tube repeatedly by two
（11）Connect together.
7. the hemodialysis catheter according to claim 6 punctured, it is characterised in that：It is described can puncture tube repeatedly（11）
End pass through the partition in its inner chamber（11d）Block, it is described can puncture tube repeatedly（11）Tube wall up extend height
Go out partition（11d）Formed for installing pin thread（12a1）And box（12a2）Lock installation cavity, the pin thread（12a1）It is and female
Button（12a2）Each it is corresponding be arranged on one can puncture tube repeatedly（11）Lock installation cavity in, the pin thread（12a1）Including one
Toward the bar shaped insertion head of outer lug（12a1a）, the box（12a2）Including one and bar shaped insertion head（12a1a）Matching
Slot（12a2a）, the bar shaped insertion head（12a1a）Outer peripheral face be provided with sheet flank（12b）, the sheet flank
（12b）Flush in can puncture tube repeatedly for outer（11）Outer peripheral face or positioned at can puncture tube repeatedly（11）The inner side of outer peripheral face, institute
State bar shaped insertion head（12a1a）Insert slot（12a2a）Afterwards, the sheet flank（12b）Expose in box（12a2）Outside, institute
State sheet flank（12b）On offer threading hole, by the sheet flank（12b）Can be to described after skin closure is together with
Can puncture tube repeatedly（11）End fix.
8. the hemodialysis catheter punctured according to any one in claim 1-3, it is characterised in that：The conduit
Fixed structure includes being fixedly connected on can puncture tube repeatedly（11）Front end and/or the sheet flank of end（12b）, the sheet side
The wing（12b）On offer threading hole, by the sheet flank（12b）It can be worn repeatedly to described after skin closure is together with
Thorn pipe（11）Fix.
9. the hemodialysis catheter punctured according to any one in claim 1-3, it is characterised in that：The conduit
Fixed structure includes fixed be set in can puncture tube repeatedly（11）Front end and/or the terylene collar of end（12c）.
10. the hemodialysis catheter punctured according to any one in claim 1-3, it is characterised in that：It is described can
Puncture tube repeatedly（11）Outer peripheral face be provided with annular and/or spiral groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198855.9U CN207125935U (en) | 2017-03-02 | 2017-03-02 | The hemodialysis catheter that can be punctured |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198855.9U CN207125935U (en) | 2017-03-02 | 2017-03-02 | The hemodialysis catheter that can be punctured |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207125935U true CN207125935U (en) | 2018-03-23 |
Family
ID=61630363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198855.9U Withdrawn - After Issue CN207125935U (en) | 2017-03-02 | 2017-03-02 | The hemodialysis catheter that can be punctured |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207125935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938064A (en) * | 2017-03-02 | 2017-07-11 | 毕国善 | The hemodialysis catheter that can be punctured |
-
2017
- 2017-03-02 CN CN201720198855.9U patent/CN207125935U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938064A (en) * | 2017-03-02 | 2017-07-11 | 毕国善 | The hemodialysis catheter that can be punctured |
| CN106938064B (en) * | 2017-03-02 | 2023-11-24 | 南华大学附属第二医院 | Puncture hemodialysis catheter |
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