CN215023458U

CN215023458U - Implantable blood drainage tube for intrarenal hemodialysis

Info

Publication number: CN215023458U
Application number: CN202120349724.2U
Authority: CN
Inventors: 王宝福; 罗银平
Original assignee: Nanchong Central Hospital
Current assignee: Nanchong Central Hospital
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-12-07
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses an implanted blood drainage tube for intrarenal hemodialysis, which comprises a first implanted tube and a second implanted tube, wherein the first implanted tube is bound with the second implanted tube side by side through a sleeve, the first implanted tube is connected with and communicated with a first extension tube, the second implanted tube is connected with and communicated with a second extension tube, the first extension tube is bound with the second extension tube side by side through a fixed wing, a flow rate controller is respectively clamped on the first extension tube and the second extension tube, and the end parts of the first extension tube and the second extension tube are respectively and fixedly connected with a connector, the utility model discloses can conveniently realize the functions of drainage and blood transfusion of the implanted blood drainage tube, and simultaneously, the outer surface of the sleeve is provided with a plurality of fine bulges, thereby realizing that the fine burrs of the sleeve are together with vascular tissues, preventing bleeding, and solving the problem of pain of patients caused by repeated puncture, through setting up the connector, it is low to have solved the sealed degree of pipe fitting, leads to the problem of blood infection.

Description

Implantable blood drainage tube for intrarenal hemodialysis

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an implanted blood drainage tube for intrarenal hemodialysis.

Background

In the process of hemodialysis treatment of uremia patients, 2 methods for discharging blood out of a body exist at present, one is deep venous catheter drainage, thrombus is easily formed clinically by the method, and meanwhile, the phenomenon of adherence (vascular wall) of a drainage tube is also generated, so that unsmooth blood drainage is caused; when the drainage tube is pulled out, the blood vessel is easy to shrink and narrow, and the intubation is affected again. The other is internal arteriovenous fistula drainage, the mode is because the blood flow direction has been changed, has increased venous pressure, easily leads to distal end vein backward flow to be obstructed, produces limbs swelling, and still because the direct backward flow vein of arterial blood has increased the heart burden, in addition repeated puncture has increased patient's pain to fixed degree is low, and the pipe fitting changes, causes pain and the sealed degree of pipe fitting is low, leads to blood infection.

Disclosure of Invention

The utility model aims to provide an implanted blood drainage tube for intrarenal hemodialysis, which comprises a first implanted tube and a second implanted tube, wherein the first implanted tube is bound with the second implanted tube side by side through a sleeve, the first implanted tube is connected with and communicated with a first extension tube, the second implanted tube is connected with and communicated with a second extension tube, the first extension tube is bound with the second extension tube side by side through a fixed wing, the first extension tube and the second extension tube are respectively connected with a flow rate controller, the end parts of the first extension tube and the second extension tube are respectively and fixedly connected with a connector, and the implanted blood drainage tube is characterized in that the connector comprises an external sleeve, the external sleeve comprises a liquid inlet cavity, a circulation cavity and a liquid outlet cavity which are mutually communicated, the inner diameters of the cavity of the liquid inlet cavity and the liquid outlet cavity are smaller than the inner diameter of the cavity of the circulation cavity, the liquid inlet cavity is fixedly connected with the second extension tube/the first extension tube in a sealing way, the liquid cavity is equipped with mutual fixed connection's cylindrical slider, round platform shape water conservancy diversion piece, water conservancy diversion connector from inside to outside in proper order, cylindrical slider and liquid cavity sliding connection, water conservancy diversion connector and the sealed sliding connection of liquid cavity, the circulation intracavity be equipped with circulation cavity sliding connection's slider, the one end and the spring fixed connection of fixed connection at the circulation intracavity of slider, the other end of slider passes through right angle knee and cylindrical slider fixed connection, the water conservancy diversion connector overlaps with outside telescopic junction and is equipped with the sealing rubber circle, promotes the water conservancy diversion connector and removes to circulation chamber direction, and cylindrical slider, round platform shape water conservancy diversion piece remove to the circulation intracavity, form the liquid circulation passageway in the outside sleeve.

Preferably, the water conservancy diversion connector is including fixed cup joint the inner ring cover of cover on round platform shape water conservancy diversion piece, with the sealed sliding connection's of outside sleeve outer loop sleeve, the annular channel that inner ring cover and outer loop sleeve formed is linked together with the liquid circulation passageway that forms in the outside sleeve, wear to be equipped with on the outer loop sleeve with the sealed fixed connection's in the bottom honeycomb duct of inner ring cover, honeycomb duct and the sealed fixed connection of outer loop sleeve, be equipped with the water conservancy diversion hole on the honeycomb duct, the water conservancy diversion hole is located between inner ring cover and the outer loop sleeve, annular channel passes through the water conservancy diversion hole and forms out liquid passageway with the honeycomb duct.

Preferably, the opening directions of the first implantation tube and the second implantation tube are opposite, part of the first implantation tube is positioned below the second implantation tube, and a ventilation tube is arranged below the first implantation tube and the second implantation tube.

Preferably, the sleeve is positioned at the corner of the first implant tube and the second implant tube, the outer surface of the sleeve is provided with a plurality of tiny bulges, and the sleeve is tightly sleeved on the first implant tube and the second implant tube.

Preferably, the inner surfaces of the first implant tube, the second implant tube and the first extension tube are provided with a coating for preventing thrombus formation.

Preferably, one side of the fixed wing is fixedly connected with a magic tape, and the other side of the fixed wing is fixedly connected with a magic tape female tape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up first implantation tube, the second is implanted the pipe, first extension pipe, and the effect of drainage and blood transfusion that the device can conveniently be realized to the second extension pipe makes the in-process that the device was using through setting up the draught tube simultaneously, and blood can pass through the smooth circulation of draught tube, and the effectual device of having avoided blocks up the condition in the blood vessel in the drainage.

2. Through with first implantation pipe through the sleeve pipe with the second is implanted the pipe and is bound side by side, and the sleeve pipe surface has numerous fine archs, when first implantation pipe and second implantation pipe implantation blood vessel after, the long hemorrhage that prevents together of sheathed tube fine burr and vascular tissue seals the human body, implants a pipe fitting and just can used repeatedly, need not implant again, has solved because puncture repeatedly and has increased the painful problem of patient.

3. Through setting up the connector, it is low to have solved the sealed degree of pipe fitting, leads to the problem of blood infection.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of an implantable blood drainage tube for intrarenal hemodialysis according to the present invention;

FIG. 2 is a schematic structural view of a connector of an implantable blood drainage tube for intrarenal hemodialysis according to the present invention;

FIG. 3 is a schematic view of a structure of a flow guiding connector of an implantable blood drainage tube for intrarenal hemodialysis according to the present invention;

description of reference numerals:

1-a second extension tube, 2-a first extension tube, 3-a second implantation tube, 4-a first implantation tube, 5-a sleeve, 6-a fixed wing, 7-a flow rate controller, 8-a connector, 9-a flow-through tube, 10-a coating, 801-an external sleeve, 802-a cylindrical sliding block, 803-a truncated cone-shaped flow guide block, 804-a spring, 805-a sliding block, 806-a right-angle bent rod, 807-a flow-guide connector, 808-a rubber sealing ring, 8011-a liquid inlet cavity, 8012-a flow cavity, 8013-a liquid outlet cavity, 8071-an internal ring sleeve, 8072-an external ring sleeve, 8073-a flow guide tube, 8074-a flow guide hole and 8075-an annular channel.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, but it should be understood that the scope of the present invention is not limited by the specific embodiments.

Example (b):

as shown in fig. 1 to 3, an implantable blood drainage tube for intrarenal hemodialysis comprises a first implantation tube 4 and a second implantation tube 3, wherein the first implantation tube 4 is bound with the second implantation tube 3 in parallel through a cannula 5, the first implantation tube 4 is communicated with a first extension tube 2, the second implantation tube 3 is communicated with a second extension tube 1, the first implantation tube 4 and the second implantation tube 3 are arranged, so that the device can drain and draw blood through the second implantation tube 3, and transfuse blood through the first implantation tube 4, thereby realizing two functions of draining and drawing blood and transfusing blood, the first extension tube 2 is bound with the second extension tube 1 in parallel through a fixing wing 6, after the tube is inserted into a human body, the tube is fixed on the human body through the fixing wing 6, thereby solving the problems of low fixing degree and preventing bleeding and pain caused by tube change, the first extension tube 2 and the second extension tube 1 are respectively connected with a flow rate controller 7, the flow rate controller 7 can control the flow rate of blood in the tube, the end parts of the first extension tube 2 and the second extension tube 1 are respectively and fixedly connected with a connector 8, the connectors 8 are connected with an interface on a dialysis machine, the dialysis machine works, and blood flows, and the blood circulation dialysis machine is characterized in that the connectors 8 comprise an external sleeve 801, the external sleeve 801 comprises a liquid inlet cavity 8011, a circulation cavity 8012 and a liquid outlet cavity 8013 which are mutually communicated, and the inner diameters of the liquid inlet cavity 8011 and the liquid outlet cavity 8013 are smaller than the inner diameter of the circulation cavity 8012.

The liquid inlet cavity 8011 is fixedly connected with the second extension pipe 1/the first extension pipe 2 in a sealing manner, a cylindrical sliding block 802, a circular truncated cone-shaped flow guide block 803 and a flow guide connector 807 which are fixedly connected with each other are sequentially arranged in the liquid outlet cavity 8013 from inside to outside, the cylindrical sliding block 802 is connected with the liquid outlet cavity 8013 in a sliding manner, the flow guide connector 807 is connected with the liquid outlet cavity 8013 in a sealing manner, a sliding block 805 which is connected with the flow cavity 8012 in a sliding manner is arranged in the flow cavity 8012, one end of the sliding block 805 is fixedly connected with a spring 804 which is fixedly connected in the flow cavity 802, the other end of the sliding block 805 is fixedly connected with the cylindrical sliding block 802 through a right-angle bent rod 806, a sealing rubber ring 808 is sleeved at the connection position of the flow guide connector 807 and an outer sleeve 801, the flow guide connector 807 is pushed to move towards the flow cavity 8012, the cylindrical sliding block 802 and the circular truncated cone-shaped flow guide block 803 move into the flow cavity 8012, the outer sleeve 801 forms a fluid communication channel therein.

The flow guide connector 807 comprises an inner ring sleeve 8071 fixedly sleeved on the circular truncated cone-shaped flow guide block 803 and an outer ring sleeve 8072 in sealing sliding connection with the outer sleeve 801, an annular channel 8075 formed by the inner ring sleeve 8071 and the outer ring sleeve 8072 is communicated with a liquid flow channel formed in the outer sleeve 801, a flow guide pipe 8073 in sealing fixed connection with the bottom of the inner ring sleeve 8701 is arranged on the outer ring sleeve 8072 in a penetrating manner, the flow guide pipe 8073 is in sealing fixed connection with the outer ring sleeve 8072, flow guide holes 8074 are formed in the flow guide pipe 8073, the flow guide holes 8074 are located between the inner ring sleeve 8701 and the outer ring sleeve 8702, and a liquid outlet channel is formed by the annular channel 8075 through the flow guide holes 8074 and the flow guide pipe 8073.

The guide tube 8073 on the guide connector 807 is connected with the upper interface of the dialysis machine, the guide tube 8073 is pushed, then the truncated cone-shaped flow guiding block 803, the cylindrical sliding block 802, and the sliding block 805 fixedly connected with the cylindrical sliding block 802 through the right-angled bent rod 806 sequentially flow to one end far away from the flow guiding pipe 8073, the spring 804 is compressed, and after the blood entering from the liquid inlet cavity 8011 of the outer sleeve 801 flows through the flow cavity 8012, enters the liquid outlet cavity 8013 through the truncated cone-shaped flow guide block 803, flows into the flow guide connector 807, flows through an annular channel 8075 formed between the inner ring sleeve 8071 and the outer ring sleeve 8072, flows into the dialysis machine through the flow guide holes 8074, when not in use, the flow guide connector 807 is loosened to enable the spring 804 to rebound, the cylindrical sliding block 802 blocks the blood passage of the liquid outlet cavity 8013, so that the blood is prevented from being polluted by the external environment, and the problem of blood infection caused by low sealing degree of the pipe fitting is solved.

The opening direction of the first implantation tube 4 is opposite to that of the second implantation tube 3, the part of the first implantation tube 4 is positioned below the second implantation tube 3, the lower part of the first implantation tube 4 and the second implantation tube 3 is provided with the flow tube 9, blood is implanted into the blood vessel, the blood is pumped out through the second implantation tube 3, the blood is sent into the blood vessel through the first implantation tube 4, meanwhile, part of the blood normally flows through the flow tube 9, and the condition that the blood vessel is blocked by the device in drainage is effectively avoided by arranging the flow tube 9.

The sleeve 5 is located the bent angle department of first implantation tube 4 and second implantation tube 3, there are numerous fine archs on the 5 surfaces of sleeve, the inseparable suit of sleeve 5 is on first implantation tube 4 and second implantation tube 3, after first implantation tube 4 and second implantation tube 3 implanted blood vessel, the thin burr on the sleeve 5 and vascular tissue are long together to prevent to bleed.

The inner surfaces of the first implantation tube 4, the second implantation tube 3, the first extension tube 2 and the second extension tube 1 are provided with a coating 10 for preventing thrombus formation, and the coating 10 is a heparin coating or a rapamycin coating for preventing thrombus formation on the inner wall of the tube.

The fixing device is characterized in that one side of the fixing wing 6 is fixedly connected with a magic tape, the other side of the fixing wing 6 is fixedly connected with a magic tape female tape, and in order to fix the first extension pipe 2 and the second extension pipe 1 on the limb, the fixing of the device is effectively enhanced.

The utility model discloses a theory of operation and use flow: the medical staff closes the flow rate controller 7 first, then implants the pipe fitting into the blood vessel, plugs the blood vessel opening with the sleeve 5, the thin burr on the sleeve 5 and the blood vessel tissue grow together, the magic tape and the magic tape female tape at the two ends of the fixed wing 6 are attached to the human body, the pipe fitting is fixed, the bleeding caused by the pipe fitting change is prevented, the problem of pain of the patient caused by the low fixing degree of the pipe fitting and the pipe fitting change is solved, when the dialysis is needed, the guide pipe 8073 is connected with the interface on the dialysis machine, the guide pipe 8073 is pushed, the circular truncated cone-shaped guide block 803, the cylindrical sliding block 802, the sliding block 805 fixedly connected with the cylindrical sliding block 802 through the right angle bent rod 806 sequentially flows to the end far away from the guide pipe 8073, the spring 804 is compressed, the blood entering from the liquid inlet cavity 8011 of the external sleeve 801 flows through the flow cavity 8012, and then enters the liquid outlet 8013 through the circular truncated cone-shaped guide block 803, flows into the flow guiding connector 807, flows through an annular channel 8075 formed between the inner ring sleeve 8071 and the outer ring sleeve 8072, flows into the dialysis machine through the flow guiding hole 8074, blood flows, the dialysis machine works, when the device is not used, the flow guiding connector 807 is loosened, the spring 804 rebounds, the cylindrical sliding block 802 blocks the blood channel of the liquid outlet cavity 8013 to prevent the external environment from polluting blood, the problem of blood infection caused by low sealing degree of the pipe fitting is solved, the sleeve 5 is positioned at the bent angle of the first implantation pipe 4 and the second implantation pipe 3, the outer surface of the sleeve 5 is provided with a plurality of fine bulges, the sleeve 5 is tightly sleeved on the first implantation pipe 4 and the second implantation pipe 3, after the first implantation pipe 4 and the second implantation pipe 3 are implanted into a blood vessel, the fine burrs on the sleeve 5 grow together with the blood vessel tissue to prevent bleeding, the human body is sealed, and the once implanted pipe fitting can be reused, the patient is not required to be implanted again, and the problem that the pain of the patient is increased due to repeated puncture is solved.

Finally, the description is as follows: the above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An implanted blood drainage tube for intrarenal hemodialysis, comprising a first implanted tube (4) and a second implanted tube (3), wherein the first implanted tube (4) is bound with the second implanted tube (3) side by side through a sleeve (5), the first implanted tube (4) is connected with a first extension tube (2) and is communicated, the second implanted tube (3) is connected with a second extension tube (1) and is communicated, the first extension tube (2) is bound with the second extension tube (1) side by side through a fixed wing (6), the first extension tube (2) and the second extension tube (1) are respectively connected with a flow rate controller (7), the ends of the first extension tube (2) and the second extension tube (1) are respectively and fixedly connected with a connector (8), the connector (8) is characterized in that the connector (8) comprises an external sleeve (801), and the external sleeve (801) comprises an implanted liquid cavity (8011) which is communicated with each other, the liquid inlet cavity (8012) and the liquid outlet cavity (8013) are respectively provided with a flow cavity (8012) and a liquid outlet cavity (8013), and the inner diameters of the flow cavity (8011) and the liquid outlet cavity (8013) are smaller than that of the flow cavity (8012);

the liquid inlet cavity (8011) is fixedly connected with the second extension pipe (1)/the first extension pipe (2) in a sealing manner, a cylindrical sliding block (802), a truncated cone-shaped flow guide block (803) and a flow guide connector (807) which are fixedly connected with each other are sequentially arranged in the liquid outlet cavity (8013) from inside to outside, the cylindrical sliding block (802) is connected with the liquid outlet cavity (8013) in a sliding manner, the flow guide connector (807) is connected with the liquid outlet cavity (8013) in a sealing manner, a sliding block (805) which is connected with the flow cavity (8012) in a sliding manner is arranged in the flow cavity (8012), one end of the sliding block (805) is fixedly connected with a spring (804) which is fixedly connected in the flow cavity (8012), the other end of the sliding block (805) is fixedly connected with the cylindrical sliding block (802) through a right-angle bent rod (806), and a sealing rubber ring (808) is sleeved at the joint of the flow guide connector (807) and an outer sleeve (801), the flow guide connector (807) is pushed to move towards the flow cavity (8012), the cylindrical sliding block (802) and the truncated cone-shaped flow guide block (803) move into the flow cavity (8012), and a liquid flow passage is formed in the outer sleeve (801).

2. The implantable blood drainage tube for intrarenal hemodialysis according to claim 1, wherein: the flow guide connector (807) comprises an inner ring sleeve (8071) fixedly sleeved on a truncated cone-shaped flow guide block (803) and an outer ring sleeve (8072) connected with the outer sleeve (801) in a sealing and sliding manner, an annular channel (8075) formed by the inner ring sleeve (8071) and the outer ring sleeve (8072) is communicated with a liquid flow channel formed in the outer sleeve (801), a flow guide pipe (8073) fixedly connected with the bottom of the inner ring sleeve (8071) is arranged on the outer ring sleeve (8072) in a penetrating manner, the flow guide pipe (8073) is fixedly connected with the outer ring sleeve (8072) in a sealing manner, a flow guide hole (8074) is formed in the flow guide pipe (8073), the flow guide hole (8074) is located between the inner ring sleeve (8071) and the outer ring sleeve (8072), and the annular channel (8075) forms a liquid outlet channel with the flow guide pipe (8073) through the flow guide hole (8074).

3. The implantable blood drainage tube for intrarenal hemodialysis according to claim 1, wherein: the opening direction of the first implanted tube (4) is opposite to that of the second implanted tube (3), the part of the first implanted tube (4) is positioned below the second implanted tube (3), and a flow-through tube (9) is arranged below the first implanted tube (4) and the second implanted tube (3).

4. The implantable blood drainage tube for intrarenal hemodialysis according to claim 1, wherein: the sleeve (5) is positioned at the corner of the first implanted tube (4) and the second implanted tube (3), the outer surface of the sleeve (5) is provided with a plurality of fine bulges, and the sleeve (5) is tightly sleeved on the first implanted tube (4) and the second implanted tube (3).

5. The implantable blood drainage tube for intrarenal hemodialysis according to claim 1, wherein: the inner surfaces of the first implantation tube (4), the second implantation tube (3) and the first extension tube (2) and the second extension tube (1) are provided with a coating (10) for preventing thrombus formation.

6. The implantable blood drainage tube for intrarenal hemodialysis according to claim 1, wherein: one side of the fixed wing (6) is fixedly connected with a magic tape, and the other side of the fixed wing is fixedly connected with a magic tape female tape.