CN213822856U - Complete implantation type long-term indwelling device for dialysis - Google Patents
Complete implantation type long-term indwelling device for dialysis Download PDFInfo
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- CN213822856U CN213822856U CN202022008632.6U CN202022008632U CN213822856U CN 213822856 U CN213822856 U CN 213822856U CN 202022008632 U CN202022008632 U CN 202022008632U CN 213822856 U CN213822856 U CN 213822856U
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- channel
- catheter
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- dialysis
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- 238000000502 dialysis Methods 0.000 title claims abstract description 46
- 230000007774 longterm Effects 0.000 title claims abstract description 29
- 238000002513 implantation Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 abstract description 23
- 210000001367 artery Anatomy 0.000 abstract description 21
- 239000007943 implant Substances 0.000 abstract description 4
- 238000007920 subcutaneous administration Methods 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 16
- 210000004369 blood Anatomy 0.000 description 16
- 238000005457 optimization Methods 0.000 description 15
- 230000002792 vascular Effects 0.000 description 9
- 230000017531 blood circulation Effects 0.000 description 8
- 208000015181 infectious disease Diseases 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000001631 haemodialysis Methods 0.000 description 3
- 230000000322 hemodialysis Effects 0.000 description 3
- 201000003144 pneumothorax Diseases 0.000 description 3
- 206010001526 Air embolism Diseases 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 2
- 206010016717 Fistula Diseases 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 208000034158 bleeding Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003890 fistula Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 208000032767 Device breakage Diseases 0.000 description 1
- 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 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000008321 arterial blood flow Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 239000011780 sodium chloride Substances 0.000 description 1
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Abstract
The utility model discloses a complete implantable long-term indwelling device for dialysis, which comprises a base, wherein an artery cavity and a vein cavity which are sealed by a puncture diaphragm are arranged on the base, and the artery cavity and the vein cavity are respectively communicated with an outlet part through an artery cavity channel and a vein cavity channel; and a catheter which is communicated with the outlet part and is provided with an artery channel and a vein channel along the length direction of the catheter. Adopt the utility model discloses a dialysis is with full implantation nature long-term indwelling equipment, implant subcutaneous completely, can keep somewhere the use for a long time.
Description
Technical Field
The utility model relates to a dialysis is with complete implantation nature long-term indwelling equipment belongs to medical instrument technical field.
Background
With the improvement of medical technology, the survival time of dialysis patients is also remarkably prolonged, the vascular resources of the patients cannot be regenerated, meanwhile, the vascular resources of the patients are exhausted due to the old age of the patients with diabetes, hypertension, obesity, poor vascular conditions of the patients, repeated internal fistula and other reasons, the autologous arteriovenous internal fistula is difficult to establish, the cost of artificial transplantation of the blood vessels is high, edema of limbs is easy to occur after establishment, the healing of punctured parts is difficult, the compression hemostasis time after puncture is long, the service life is short, and the like, so that the clinical utilization rate is low. The deep vein long-term dialysis catheter with cuff is a good supplementary form for establishing a long-term vascular access, but the catheter formed by long-term placement of the catheter has more related complications such as infection, catheter function loss, catheter breakage and the like, and is an important reason for threatening the survival of patients with hemodialysis and causing the failure of catheter technology. The neck internal catheter with smooth blood flow and good function is vital to maintaining a hemodialysis patient, but the long-term catheter of the neck internal vein has complications such as unattractive appearance after operation, pneumothorax during operation, blood seepage after operation, infection at the periphery after operation, broken pipeline, pipeline slippage and the like, so the research on how to reduce the complications of the indwelling catheter, prolong the service life of the catheter, improve the life quality of the maintenance hemodialysis patient with blood vessel exhaustion, improve the dialysis sufficiency and reduce the medical cost for repeatedly establishing a blood vessel passage is of great significance.
Disclosure of Invention
The invention of the utility model aims to: to the problem that above-mentioned exists, provide a dialysis and keep somewhere device with complete implantation nature for a long time, the utility model discloses implant completely subcutaneous, can keep somewhere the use for a long time.
The utility model adopts the technical scheme as follows:
a fully implantable long-term indwelling device for dialysis comprises a base, a base and a control device, wherein the base is provided with an arterial chamber and a venous chamber which are sealed through puncture diaphragms, and the arterial chamber and the venous chamber are communicated with an outlet part through an arterial chamber channel and a venous chamber channel respectively; and a catheter which is communicated with the outlet part and is provided with an artery channel and a vein channel along the length direction of the catheter.
When the utility model is used, the device is completely implanted into the body of a patient in an operation mode, the base is arranged under the skin, and the outlet of the catheter is inserted into the central vein, so that a long-term stable vascular access is formed in the body, and the operation of the device is simple and can be completed in 20-30 minutes, thereby reducing the pain of the patient caused by repeatedly establishing the vascular access and reducing complications such as infection; the shape of the patient after the operation is normal, the normal life of the patient can not be influenced, and the life quality of the dialysis patient is improved.
After the device is implanted into a patient, when dialysis treatment is needed, the device penetrates through a puncture membrane to enter an artery cavity and a vein cavity through a nondestructive needle respectively, then is connected with a dialysis instrument to carry out dialysis treatment, after the treatment is completed, the artery cavity and the vein cavity are washed clean by using normal saline, then heparin saline is injected into the artery cavity and the vein cavity, and then the nondestructive needle is taken down. The puncture diaphragm is punctured by using the non-damage needle, the damage to the puncture diaphragm is small, therefore, the indwelling device of the utility model can be used for a long time, and the service life is as long as 6-7 years.
Further, the catheter port is a three-way valve.
In the scheme, the three-way valve is used, and the three-way valve can prevent blood return, so that no blood exists in the catheter cavity, and the risk of air embolism, blood backflow or coagulation is avoided.
Further, the outlets of the arterial cavity channel and the venous cavity channel are matched with the arterial channel and the venous channel, so that a catheter can be directly inserted to be communicated with the arterial channel and the venous channel.
Furthermore, the device also comprises a connecting piece, one end of the connecting piece is communicated with the vein cavity channel and the artery cavity channel, and the other end of the connecting piece is provided with a catheter interface matched with the artery channel and the vein channel.
In the scheme, the catheter interface is provided with two protruding channels which can be respectively inserted into and communicated with the arterial channel and the venous channel of the catheter; the other end is communicated with the outlet part, and the connecting piece can be inserted into the corresponding artery cavity channel and vein cavity channel, or the artery cavity channel and vein cavity channel are correspondingly inserted into the connecting piece so as to be communicated with the artery cavity channel and vein cavity channel.
Furthermore, the middle part of the connecting piece is provided with a sleeving part with the diameter larger than that of the guide pipe.
Further, the device also comprises a catheter lock, wherein the catheter lock is provided with a catheter end matched with the outer diameter of the catheter, and a connecting end matched with the outer diameter of the connecting piece.
In the scheme, the catheter lock is made of flexible materials, the inner diameter of the catheter end of the catheter lock is equivalent to the outer diameter of the catheter, the inner diameter of the connecting end is equivalent to the sleeving part of the connecting piece, the catheter end is tightly sleeved outside the catheter in use, and the connecting end is tightly sleeved on the sleeving part to prevent the catheter from falling off from the connecting piece.
Furthermore, the arterial chamber and the venous chamber both use three-way valves and are independent from each other and are not communicated.
In the scheme, the three-way valve is used, and the three-way valve can prevent blood return, so that no blood exists in the catheter cavity, and the risk of air embolism, blood backflow or coagulation is avoided.
Further, the venous cavity channel and the arterial cavity channel are communicated with the bottoms of the venous cavity and the arterial cavity.
In the scheme, the venous chamber channel and the arterial chamber channel are communicated with the venous chamber, and the bottom of the arterial chamber is convenient for the circulation of blood between the arterial chamber and the venous chamber and the blood flow of the catheter during dialysis treatment.
Furthermore, a partition is arranged in the catheter to divide the inner cavity of the catheter into an arterial channel and a venous channel with semicircular sections.
In the scheme, the circular catheter is divided into two semicircular channels, so that the cross section area of the channels is as large as possible to meet the requirement of dialysis blood flow.
Furthermore, a length difference exists between the liquid inlet of the venous channel and the liquid outlet of the arterial channel.
Further, the venous channel inlet at the end of the catheter is longer than the arterial channel outlet.
Furthermore, the distance between the liquid inlet of the venous channel and the liquid outlet of the arterial channel is more than 3 cm.
In the above scheme, a certain distance is ensured between the vein channel liquid inlet and the artery channel liquid outlet at the tail end of the catheter, so that the blood recirculation of dialysis can be effectively prevented, and the blood recirculation rate is reduced.
Furthermore, the vein channel liquid inlet and the artery channel liquid outlet are in a fixed and separated type.
In the scheme, the risk that the cavity of the double-cavity catheter is completely split when the tail end split opening is too large, so that excessive bleeding, infection or catheter damage are caused can be reduced.
Furthermore, the tail ends of the venous channel and the arterial channel are provided with 360-degree side holes.
In above-mentioned scheme, 360 side openings are that setting up the round side opening in the radial 360 orientations of pipe, set up 360 side openings and can provide extra blood flow passageway for the dialysis, reduce the not enough danger of artery blood flow, avoid ordinary cascaded pipe in order to produce the adsorption, and the pipe adsorbs the condition at the pipe wall.
Further, the outer diameter of the catheter is 14-15Fr to meet the blood volume for dialysis.
Further, the conduit is a long-term conduit with a cuff.
Further, the cross section of the artery cavity and the vein cavity is circular.
Furthermore, the outer surface of the base is provided with an identification ring corresponding to the artery cavity and the vein cavity.
Furthermore, the bottom material of base is the aluminum alloy, can effectively prevent to puncture improper complications such as pneumothorax.
Furthermore, the puncture diaphragm is made of wearable liquid silica gel.
Further, the bottom of the base is provided with a chassis expanding outwards.
Furthermore, a plurality of slotted holes are arranged on the chassis.
In the scheme, the base can be fixed under the skin of a patient, and the base is prevented from moving.
The utility model discloses a dialysis is with long-term indwelling equipment of complete implantability implants patient internally through the operation with indwelling equipment to can be long-term, facilitate the use when the dialysis, reduce and establish the vascular route repeatedly and give the misery that dialysis patient caused, and elegant appearance does not influence patient's normal life.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the implant can be completely implanted under the skin and can be kept in place for long-term use;
2. the pain of dialysis patients caused by repeatedly establishing a vascular access is reduced;
3. the appearance is elegant and the normal life of the patient is not affected.
Drawings
Figure 1 is a first schematic view of an indwelling device;
figure 2 is a second schematic view of the indwelling device;
figure 3 is a third schematic view of the indwelling device;
figure 4 is a schematic cross-sectional view of a first schematic view of an indwelling device;
FIG. 5 is a schematic view of a base;
FIG. 6 is a schematic view of a base and a connector;
FIG. 7 is another schematic view of the base and connector;
FIG. 8 is a schematic view of a connector;
FIG. 9 is a schematic view of a catheter lock;
FIG. 10 is a schematic view of a catheter;
figure 11 is another schematic view of a catheter.
The labels in the figure are: 1-base, 2-conduit, 3-connecting piece, 4-conduit lock, 5-chassis, 11-venous chamber, 12-arterial chamber, 13-puncture septum, 14-outlet part, 15-positioning ring, 16-venous chamber channel, 17-arterial chamber channel, 21-venous channel, 22-arterial channel, 23-partition, 24-venous channel liquid inlet, 25-arterial channel liquid outlet, 31-conduit interface, 32-socket joint part, 41-connecting end, 42-conduit end and 51-slotted hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1, 4 and 5, the fully implantable long-term indwelling device for dialysis of the present embodiment includes a base 1, which is provided with an arterial chamber 12 and a venous chamber 11 sealed at the ends by a puncture septum 13, wherein the arterial chamber 12 and the venous chamber 11 are respectively communicated with an outlet port 14 through an arterial chamber channel 17 and a venous chamber channel 16; a catheter 2 which is communicated with the outlet part 14 and is provided with an arterial channel 22 and a venous channel 21 along the length direction of the catheter 2, wherein the interface of the catheter 2 adopts a three-way valve; the outlets of the arterial and venous chamber channels 17, 16 are matched with the arterial and venous channels 22, 21 so that the catheter 2 can be inserted directly to communicate with them.
In this embodiment, after the indwelling device is implanted into the body of the patient through the operation, when dialysis treatment is required, the non-damage needle passes through the puncture membrane 13 to enter the arterial chamber 12 and the venous chamber 11, and then is connected to a dialysis apparatus to perform dialysis treatment, and after the treatment is completed, the non-damage needle is removed. Blood enters the catheter 2 from the venous channel inlet 24 and is conveyed to the venous chamber 11, then is pumped to the dialysis apparatus for blood purification, and purified blood is conveyed to the arterial chamber 12 and then is conveyed back through the arterial channel outlet 25 of the catheter 2, thereby completing the dialysis process.
Example 2
As shown in fig. 2, 6 and 8, as a further optimization of embodiment 1, this embodiment further includes a connector 3, one end of which is communicated with the venous chamber channel 16 and the arterial chamber channel 17, and the other end of which is provided with a catheter interface 31 matched with the arterial channel 22 and the venous channel 21.
As shown in fig. 8, the catheter hub 31 has two catheter hubs 31 matching the venous channel 21 and the arterial channel 22, and can be directly inserted into the arterial channel 22 and the venous channel 21 of the catheter 2 to communicate with the two catheter hubs; the other end is communicated with the vein chamber channel 16 and the artery chamber channel 17, the connecting piece 3 can be inserted into the corresponding artery chamber channel 17 and the vein chamber channel 16, or the artery chamber channel 17 and the vein chamber channel 16 can be inserted into the connecting piece 3 correspondingly so as to be communicated with the connecting piece.
Example 3
As shown in fig. 3, 8 and 9, as a further optimization of the embodiment 2, the middle part of the connecting piece 3 of the embodiment is provided with a socket part 32 with a diameter larger than that of the conduit 2; the pipe connector also comprises a hollow pipe lock 4 which is provided with a pipe end 42 matched with the outer diameter of the pipe 2 and a connecting end 41 matched with the outer diameter of the sleeving part 32, wherein the pipe end 42 is tightly sleeved outside the pipe 2 in use, and the connecting end 41 is tightly sleeved on the sleeving part 32 to prevent the pipe 2 from falling off from the connecting piece 3.
As a further optimization of the above embodiment, in other embodiments, the venous chamber channel 16 and the arterial chamber channel 17 are communicated with the bottoms of the venous chamber 11 and the arterial chamber 12, so as to facilitate the blood flow communication between the arterial chamber 12 and the venous chamber 11 and the catheter 2 during dialysis treatment.
As a further optimization of the above embodiment, in other embodiments, a partition 23 is provided in the catheter 2 to divide the lumen of the catheter 2 into an arterial channel 22 and a venous channel 21 with semicircular cross sections, so that the cross sections of the arterial channel 22 and the venous channel 21 are as large as possible to meet the requirement of dialysis blood flow.
As a further optimization of the above embodiment, in other embodiments, there is a length difference between the venous channel inlet 24 and the arterial channel outlet 25; the venous channel inlet 24 at the end of the catheter 2 is longer than the arterial channel outlet 25; the distance between the venous channel liquid inlet 24 and the arterial channel liquid outlet 25 is more than 3cm, so that the blood recirculation of dialysis can be effectively prevented.
As a further optimization of the above embodiment, in other embodiments the outer diameter of the catheter 2 is any value from 14 to 15Fr, such as 14.5Fr, to meet the blood volume for dialysis.
As a further optimization of the above embodiment, in other embodiments the conduit 2 is a long-term conduit 2 with cuff.
As a further optimization of the above embodiment, in other embodiments, as shown in fig. 10, the venous passage outlet 24 and the arterial passage outlet 25 of the catheter 2 are located on the same tube, the arterial passage outlet 25 is located on the side of the catheter 2, and the venous passage outlet 24 is located at the end of the catheter 2.
As a further optimization of the above embodiment, in other embodiments, as shown in fig. 11, two liquid outlet pipes are led out from the end of the catheter 2 to form a separate venous channel liquid outlet 24 and an arterial channel liquid outlet 25, so as to reduce the risk that the cavity of the double-lumen catheter is completely split when the split opening at the end is too large, thereby causing excessive bleeding, infection or catheter damage.
As a further optimization of the above embodiment, in other embodiments, the ends of the venous channel 21 and the arterial channel 22 are provided with 360 ° side holes, which can provide an additional blood flow path for dialysis, reduce the risk of insufficient arterial blood flow, and avoid the situation that a common stepped catheter adsorbs on the wall of the catheter due to adsorption.
As a further optimization of the above embodiment, in other embodiments, the arterial and venous chambers 12, 11 are circular in cross-section.
As a further optimization of the above embodiment, in other embodiments, the outer surface of the base 1 is provided with an identification ring corresponding to the arterial chamber 12 and the venous chamber 11.
As a further optimization of the above embodiment, in other embodiments, the bottom of the base 1 is made of aluminum alloy, which can effectively prevent complications such as pneumothorax caused by improper puncture.
As a further optimization of the above embodiment, in another embodiment, the material of the puncture membrane 13 is a penetration-resistant liquid silicone.
As a further optimization of the above embodiment, in other embodiments, the bottom of the base 1 is provided with a bottom plate 5 expanding outwards, and the bottom plate 5 is provided with a plurality of slots 51.
In conclusion, the fully-implantable long-term indwelling device for dialysis, which is disclosed by the utility model, is completely implanted under the skin and can be used for indwelling for a long time; the pain of dialysis patients caused by repeatedly establishing a vascular access is reduced; the appearance is elegant and the normal life of the patient is not affected.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022008632.6U CN213822856U (en) | 2020-09-10 | 2020-09-10 | Complete implantation type long-term indwelling device for dialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022008632.6U CN213822856U (en) | 2020-09-10 | 2020-09-10 | Complete implantation type long-term indwelling device for dialysis |
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| Publication Number | Publication Date |
|---|---|
| CN213822856U true CN213822856U (en) | 2021-07-30 |
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| CN202022008632.6U Expired - Fee Related CN213822856U (en) | 2020-09-10 | 2020-09-10 | Complete implantation type long-term indwelling device for dialysis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975506A (en) * | 2021-11-11 | 2022-01-28 | 上海长征医院 | X type hemodialysis port |
| CN114053502A (en) * | 2021-11-11 | 2022-02-18 | 上海长征医院 | Y type hemodialysis harbor |
| CN118697961A (en) * | 2024-08-07 | 2024-09-27 | 中国人民解放军陆军军医大学第二附属医院 | A subcutaneous hemodialysis port and its components |
-
2020
- 2020-09-10 CN CN202022008632.6U patent/CN213822856U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975506A (en) * | 2021-11-11 | 2022-01-28 | 上海长征医院 | X type hemodialysis port |
| CN114053502A (en) * | 2021-11-11 | 2022-02-18 | 上海长征医院 | Y type hemodialysis harbor |
| CN118697961A (en) * | 2024-08-07 | 2024-09-27 | 中国人民解放军陆军军医大学第二附属医院 | A subcutaneous hemodialysis port and its components |
| CN118697961B (en) * | 2024-08-07 | 2025-03-14 | 中国人民解放军陆军军医大学第二附属医院 | Subcutaneous indwelling hemodialysis port and assembly thereof |
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Granted publication date: 20210730 |