CN216725412U

CN216725412U - Transfusion port

Info

Publication number: CN216725412U
Application number: CN202120233507.7U
Authority: CN
Inventors: 蔡涛; 叶良骏; 吕向东; 陈大为
Original assignee: Kangdi Taike Beijing Medical Technology Co ltd
Current assignee: Kangdi Taike Beijing Medical Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-06-14
Anticipated expiration: 2031-01-27

Abstract

The embodiment of the utility model provides an infusion port, which comprises a port body, a first catheter and a second catheter, wherein the second catheter is wrapped outside the first catheter; the port body comprises a port body and a diaphragm assembly arranged in the port body, the port body is provided with a first opening, the second conduit is positioned at the first opening, and the first end of the second conduit is communicated with the first opening; the first catheter comprises a catheter body and a handle arranged at the first end of the catheter body, the second end of the catheter body penetrates through the diaphragm assembly and enters the second catheter, the second catheter extends out of the second catheter along the second catheter, the second catheter is driven by the first catheter to puncture a target blood vessel together, the position of the second catheter is kept unchanged after successful puncture, the first catheter is slowly withdrawn, and finally the port body and the second catheter are successfully implanted into the body of a patient, so that the operation is simple.

Description

Transfusion port

Technical Field

The utility model relates to the field of medical equipment, in particular to a transfusion port.

Background

In the modern society, diseases such as vascular occlusion, cancer, tumor and the like are common, and the diseases are generally difficult to cure, complicated in treatment process and high in treatment cost. With the development of modern medicine, it is considered that targeted therapy can treat such disorders with relatively high efficiency and low side effects, i.e. drugs are directly delivered to the diseased region by building a pathway and the like.

The existing transfusion port system is designed in a split structure, namely, a transfusion port body and a transfusion tube are separated, in the clinical use process, an operator at least needs to perform incision operation twice on a patient, a first wound performs vascular puncture, and one end of the transfusion tube is sent into a blood vessel; the second wound is used for port implantation and connection of the port and the infusion tube, and the operation is complex.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an infusion port, which can solve the problem of complex operation when an infusion port system is implanted.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the utility model provides an infusion port, which comprises a port body, a first catheter and a second catheter, wherein the second catheter is wrapped outside the first catheter;

the port body comprises a port body and a diaphragm assembly arranged in the port body, the port body is provided with a first opening, the second conduit is positioned at the first opening, and the first end of the second conduit is communicated with the first opening;

the first catheter comprises a catheter body and a handle arranged at the first end of the catheter body, and the second end of the catheter body penetrates through the diaphragm assembly, enters the second catheter and extends out of the second catheter along the second catheter.

Optionally, the harbor body further comprises a base, a groove is formed in the base, and the harbor body is arranged on the groove.

Optionally, a second opening is arranged on the groove, the first opening and the second opening are arranged adjacent to each other, and the second end of the catheter body penetrates through the diaphragm assembly and sequentially passes through the first opening and the second opening to enter the second catheter, and extends out of the second catheter along the second catheter.

Optionally, the harbor body further includes a first cover body, the first cover body is matched with the harbor body to form a first accommodating cavity, and the diaphragm assembly is disposed in the first accommodating cavity.

Optionally, the first cover body has a third opening, the first opening and the second opening are arranged perpendicularly to each other in the opening direction, a limiting member is arranged at the third opening, and the diaphragm assembly is arranged on the first accommodating cavity through the limiting member.

Optionally, the harbor body further comprises a second cover body, the second cover body is provided with a second accommodating cavity, the harbor body is arranged in the second accommodating cavity, the second accommodating cavity is provided with a fourth opening, a clamping groove is formed in the fourth opening, and the harbor body is fixed in the second accommodating cavity through the clamping groove.

Optionally, the diaphragm assembly includes a fixing member and a diaphragm disposed on the fixing member;

the fixing piece is arranged at the fourth opening, and the diaphragm is fixed on the second cover body through the fixing piece.

Optionally, a plurality of through holes are arranged on the side wall of the second end of the second conduit.

Optionally, the port further comprises a third conduit, and the third conduit is sleeved on the second conduit.

Optionally, the second cover and the second conduit both contain a developer.

The embodiment of the utility model provides an infusion port, which comprises a port body, a first catheter and a second catheter wrapped outside the first catheter, wherein the port body comprises a port body and a diaphragm assembly arranged in the port body, a handle is arranged at the first end of the first catheter, the second catheter is communicated with the port body through a first opening arranged on the port body, the second end of the first catheter penetrates through the diaphragm assembly to enter the second catheter and extends out of the second catheter along the second catheter, the second catheter is driven by the first catheter to puncture a target blood vessel together, the position of the second catheter is kept unchanged after the puncture is successful, the first catheter is slowly withdrawn, and finally the port body and the second catheter are successfully implanted into a patient body.

Drawings

FIG. 1 is a cross-sectional view of an infusion port in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the components of a port of the present invention;

fig. 3 is a schematic structural diagram of a first conduit according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides an infusion port comprising a port body 10, a first catheter 20, and a second catheter 30 wrapped around the first catheter;

the harbor body 10 comprises a harbor body 11 and a septum assembly 12 disposed in the harbor body 11, the harbor body 11 has a first opening 111, the second conduit 30 is located at the first opening 111, and a first end of the second conduit 30 communicates with the first opening 111;

the first catheter includes a catheter body 21 and a handle 22 disposed at a first end of the catheter body 21, and a second end of the catheter body 21 passes through the septum assembly 12 and into the second catheter 30 and extends along the second catheter 30 and out of the second catheter 30.

The infusion port is a closed infusion device completely implanted into a human body, comprises a conduit part with the tip positioned in a superior vena cava and an injection seat embedded under the skin, and is a special infusion device which is implanted into the human body in order to relieve the stimulation of medicaments to blood vessels of a patient. Currently, ports are used primarily for patients requiring long-term, repeated infusion administration; patients who take blood, blood transfusion, or nutritional drug infusion; patients with bolus contrast; patients who use chemotherapeutic drugs for a long time.

In this embodiment, after the patient is prepared for the operation such as anesthesia, the operator only needs to make an incision by selecting a suitable port implantation position on the patient and then implant the port into the patient.

Wherein, first pipe is the puncture pipe, and the puncture pipe body is nickel titanium alloy material, has the characteristics that the pliability is fabulous and power conduction performance is excellent. After the harbor body is implanted into a patient body, the ultrasonic equipment is used for observing, the puncture catheter is pushed, when the far end of the puncture catheter reaches the position near a preset blood vessel, the puncture catheter is slowly pushed, the position is adjusted through real-time display of ultrasonic images until the needle tip part at the far end of the puncture catheter is distributed to the position of the blood vessel to be punctured, when the puncture catheter gradually enters the blood vessel, blood can flow into the puncture catheter through a small hole behind the needle tip, and blood can flow along the inner cavity of the puncture catheter by blood pressure until the blood flows out from the handle of the puncture catheter. If continuous blood flows out of the handle, the successful puncture of the blood vessel is proved. After the puncture catheter punctures the target blood vessel successfully, the infusion tube is driven to enter the blood vessel together, in order to prevent the needle tip part of the puncture catheter from scratching the inner wall of the blood vessel, the puncture catheter part can be withdrawn into the infusion tube, scales can be arranged on the tube wall of the infusion tube, and the relative position of the puncture catheter and the infusion tube is determined through the scales on the tube wall. After the infusion tube is implanted, the puncture catheter is withdrawn from the infusion tube, and finally the puncture catheter is taken off from the harbor body.

The second catheter 30 is an infusion tube, i.e., a catheter located in the superior vena cava, and since the infusion tube is finally left in the body of the patient, the material of the infusion tube needs to be extremely soft, so that the possibility of falling off due to excessive movement of the patient can be reduced, and in addition, the comfort of the patient can be improved.

Compared with the prior port infusion system, the operator needs to perform incision operation on the patient at least twice during the use process, and the incision is larger: carrying out vascular puncture on the first wound, sending one end of the infusion tube into a blood vessel to enable the blood vessel to reach a lesion part, and meanwhile sending the other end of the infusion tube to a preselected port body implantation position in a subcutaneous tunnel building mode; the second wound is the port implantation and connection of the port to the tubing, which is fragile and prone to breakage, which can lead to failure of the system and infection due to multiple incisions. Through setting up puncture catheter, puncture catheter can lead the transfer line and reach the target blood vessel, and need not to open the incision in addition on patient's health, has reduced the risk of wound infection.

The embodiment of the utility model provides an infusion port, which comprises a port body 10, a first catheter and a second catheter 30 wrapped outside the first catheter, wherein the port body 10 comprises a port body 10 body and a diaphragm assembly 12 arranged in the port body 10 body, a handle 22 is arranged at a first end of the first catheter, the second catheter 30 is communicated with the port body 10 body through a first opening 111 arranged in the port body 10 body, a second end of the first catheter penetrates through the diaphragm assembly 12 to enter the second catheter 30 and extends out of the second catheter 30 along the second catheter 30, the second catheter 30 is driven by the first catheter to puncture a target blood vessel, the position of the second catheter 30 is kept unchanged after the puncture is successful, the first catheter is slowly withdrawn, and finally the port body 10 and the second catheter 30 are successfully implanted into a patient, so that the operation is simple.

Optionally, the harbor body 10 further comprises a base 13, a groove is arranged on the base 13, and the harbor body 10 is arranged on the groove.

In this embodiment, a groove is formed on the base 13, and the body of the harbor body 10 is adapted to the groove, so that the body of the harbor body 10 is fixed on the base 13, and the stability of the harbor body 10 in the body of the patient is improved.

Optionally, a second opening 131 is disposed on the groove, the first opening 111 is disposed adjacent to the second opening 131, and the second end of the conduit body 21 passes through the diaphragm assembly 12, passes through the first opening 111 and the second opening 131 in sequence, enters the second conduit 30, and extends along the second conduit 30 to the outside of the second conduit 30.

Wherein the base 13 is provided at the bottom end thereof with a second opening 131, the body of the port body 10 is provided at the bottom end thereof with a first opening 111, and the second opening 131 is larger than the first opening 111, the body of the port body 10 is provided on the base 13, and the second opening 131 is arranged to overlap the first opening 111, so that the body of the port body 10 provided on the base 13 is fixed relative to the base 13.

Optionally, the harbor body 10 further comprises a first cover 14, the first cover 14 and the harbor body 10 cooperate to form a first accommodating cavity, and the membrane assembly 12 is disposed in the first accommodating cavity.

In this embodiment, the first cover 14 is disposed on the main body of the port body 10, the first cover 14 and the main body of the port body 10 cooperate to form a first accommodating cavity, the membrane assembly 12 is disposed at an upper portion of the first accommodating cavity, the membrane assembly 12 divides the first accommodating cavity into two spaces, when the port infusion system is used, the needle of the infusion apparatus punctures the membrane assembly 12 and enters the first accommodating cavity, the liquid medicine is retained in the first accommodating cavity, and when the pressure in the first accommodating cavity is greater than the venous pressure, the liquid in the first accommodating cavity flows into the target blood vessel along the infusion tube under the action of the atmospheric pressure.

Optionally, the first cover 14 has a third opening 141, the openings of the first opening 111 and the second opening 131 are perpendicular to each other, a limiting member is disposed at the third opening 141, and the diaphragm assembly 12 is disposed on the first accommodating cavity through the limiting member.

The first cover 14 is provided with a third opening 141, and the third opening 141 is vertically arranged with the opening orientations of the first opening 111 and the second opening 131, wherein the first opening 111 and the second opening 131 are both arranged at the bottom end of the port body 10, i.e. the third opening 141 is arranged at the top end of the port body 10 and is vertical to the orientations of the first opening 111 and the second opening 131.

A limiting member is disposed at the third opening 141, wherein the limiting member is two protruding pillars surrounding the third opening 141 and disposed oppositely, a slot adapted to the protruding pillar is disposed on the diaphragm assembly 12, the diaphragm assembly 12 is rotated, and the slot on the diaphragm assembly 12 passes through the protruding pillar and is fixed at the protruding pillar.

The retainer may also be a bead strip disposed around the third opening 141 such that the cross-sectional area of the diaphragm assembly 12 is smaller than the third opening 141 such that the diaphragm assembly 12 is fixed relative to the third opening 141. The specific structure of the limiting member is not limited in this embodiment.

In this embodiment, the limiting member is disposed at the third opening 141, so that the diaphragm assembly 12 is fixed on the first accommodating cavity, thereby improving the stability of the system.

Optionally, the harbour body 10 further includes a second cover 15, the second cover 15 is provided with a second accommodating cavity, the harbour body 11 is arranged in the second accommodating cavity, the second accommodating cavity has a fourth opening 151, a clamping groove is arranged at the fourth opening 151, and the harbour body 10 is fixed in the second accommodating cavity through the clamping groove.

The second cover 15 is a hollow structure, the port body 10 is disposed in the hollow structure, and has a fourth opening 151, wherein the fourth opening 151 and the third opening 141 are oriented in the same direction, the fourth opening 151 is communicated with the third opening 141, and a locking groove disposed along the opening is disposed at the fourth opening 151, so that the sectional area of the fourth opening 151 is smaller than that of the port body 10, thereby fixing the port body 10 in the second accommodating cavity.

In addition, the second cover body 15 can also be a circular ring structure, one end of the circular ring structure is flush with and fixed to the base 13, and the first cover body 14 is fixed to the other end of the circular ring structure through a clamping groove, so that the function of the protection port body 10 is met, and the self weight is reduced.

Optionally, the diaphragm assembly 12 includes a fixing member 121 and a diaphragm 122 disposed on the fixing member 121;

the fixing member 121 is disposed at the fourth opening 151, and the diaphragm 122 is fixed to the second cover 15 by the fixing member 121.

The membrane 122 is made of a silica gel material, and due to the characteristics of good elasticity and good softness, the needle can be punctured for tens of thousands of times, and the fixing piece 121 arranged around the edge of the membrane 122 can be made of a silica gel material or a rubber material, and is made of a specific material, so that the embodiment is not limited. In addition, the maximum number of punctures of the septum 122 or the maximum use time may be set, and when the number of punctures or the use time is exceeded, the septum 122 may be replaced, or the septum 122 and the fixing member 121 may be replaced together, thereby improving the flexibility of the port system and the economy.

The fixing member 121 is disposed at the fourth opening 151, and the fixing member 121 is larger than the opening area of the fourth opening 151, that is, the fixing member 121 cannot slide out of the fourth opening 151, and is clamped at the fourth opening 151, so that the diaphragm 122 disposed on the fixing member 121 is fixed on the second cover 15.

Optionally, a plurality of through holes are disposed on the sidewall of the second end of the second conduit 30.

In this embodiment, after the port is implanted into the body of the patient, the second end of the second catheter 30 is located in the target blood vessel, the liquid medicine penetrates through the membrane 122 through the injection needle tip and enters the first accommodating cavity, then flows through the second catheter 30 and finally enters the target blood vessel, and through the through hole formed in the side wall of the second end of the second catheter 30, the liquid medicine is released more softly and uniformly, so that the impact damage to the blood vessel during the release of the medicine is reduced, and the uniform absorption of the medicine by the lesion part is facilitated.

Optionally, the port further comprises a third conduit 40, and the third conduit 40 is sleeved on the second conduit 30.

The third catheter 40 is a tearable sheath, which is sleeved on the second catheter 30, and comprises a sheath and a handle 22 arranged at one end of the sheath, while the other end of the sheath is gradually reduced, and the tip of the sheath can be used for assisting puncture due to higher hardness of the sheath, and the sheath can also provide sufficient mechanical support for building and dredging a subcutaneous tunnel. After the puncture catheter is punctured successfully, the tearable sheath and the infusion tube are pushed slowly to enable the tearable sheath and the infusion tube to enter the blood vessel along the passage set up by the puncture catheter, after the infusion tube enters the blood vessel successfully, the infusion tube and the puncture catheter are kept in the fixed position and are withdrawn slowly, and the sheath is torn until the sheath is completely separated from the second catheter 30.

Alternatively, the second cover 15 and the second duct 30 each contain a developer.

The developer is a chemical agent which develops a latent image generated by exposing a photosensitive material into a visible image. The developing agent can be added into the second cover body 15 and the second guide pipe 30 during production, in addition, when a patient is examined, the developing agent can enter various parts of a human body for metabolism through injecting the developing agent into the patient, the metabolism amount of the developing agent on the diseased region is large, a large amount of developing agent can be concentrated on the diseased region, and therefore the diseased region can be easily found through scanning of the ultrasonic equipment.

In this embodiment, the second cover 15 and the second catheter 30 are configured to contain a contrast agent, so that when the patient is implanted with the port, the specific location of the port in the body of the patient can be easily found by scanning with the ultrasound device, and the status of the port system in the body can be checked.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An infusion port comprising a port body, a first catheter, and a second catheter wrapped around the first catheter;

2. The port of claim 1 wherein the port body further comprises a base having a groove disposed therein, the port body being disposed on the groove.

3. The port of claim 2 wherein the recess defines a second opening, the first opening being disposed adjacent the second opening, the second end of the catheter body passing through the septum assembly and sequentially through the first opening, the second opening, into the second catheter, and extending along the second catheter and out of the second catheter.

4. The port of claim 3, further comprising a first cover cooperating with the port body to form a first receiving chamber, wherein the septum assembly is disposed within the first receiving chamber.

5. The port of claim 4, wherein the first cover has a third opening, the first opening and the second opening are oriented perpendicularly, the third opening is provided with a stopper, and the diaphragm assembly is disposed on the first receiving cavity through the stopper.

6. The port of claim 1, further comprising a second cover, wherein the second cover defines a second cavity, the port body is disposed within the second cavity, the second cavity has a fourth opening, and a slot is disposed at the fourth opening, and the port body is secured within the second cavity by the slot.

7. The port of claim 6, wherein the membrane assembly comprises a fixture and a membrane disposed on the fixture;

8. The port of claim 1 wherein the second end of the second conduit has a plurality of through holes formed in a sidewall thereof.

9. The port of claim 1 further comprising a third conduit disposed about said second conduit.

10. The port of claim 6, wherein the second cap and the second conduit each contain a visualization agent.