An infusion port

Abstract

An embodiment of the present invention provides an infusion port, comprising a port body, a first catheter, and a second catheter wrapped outside the first catheter; the port body comprises a port body main body and a diaphragm assembly arranged in the port body main body, the port body main body has a first opening, the second catheter is located at the first opening, and the first end of the second catheter is connected to 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 passes through the diaphragm assembly and enters the second catheter, and extends along the second catheter to the outside of the second catheter, the second catheter is driven by the first catheter to puncture the target blood vessel together, after the puncture is successful, the position of the second catheter is kept unchanged, the first catheter is slowly withdrawn, and finally the port body and the second catheter are successfully implanted into the patient's body, and the operation is simple.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to an infusion port. Background Art

[0002] In today's society, diseases such as blood vessel blockage, cancer, and tumors are relatively common. These diseases are usually difficult to cure and the treatment process is complicated and the cost of treatment is relatively high. With the development of modern medicine, we believe that targeted therapy can treat such diseases relatively efficiently and with low side effects, that is, by building pathways and other methods to deliver drugs directly to the lesion site.

[0003] The existing infusion port system is a split structural design, that is, the infusion port body and the infusion tube are separated. During clinical use, the operator needs to make at least two incisions on the patient. The first wound is for puncturing the blood vessel to insert one end of the infusion tube into the blood vessel; the second wound is for implanting the port body and connecting the port body and the infusion tube, which is a complicated operation. Summary of the invention

[0004] The embodiment of the present invention provides an infusion port, which can solve the problem of complex operation when implanting an infusion port system.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of the present invention provides an infusion port, comprising a port body, a first catheter, and a second catheter wrapped outside the first catheter;

[0007] The port body comprises a port body and a diaphragm assembly disposed in the port body, the port body has a first opening, the second conduit is located at the first opening, and a first end of the second conduit is connected to the first opening;

[0008] The first catheter includes a catheter body and a handle arranged at a first end of the catheter body. The second end of the catheter body passes through the diaphragm assembly and enters the second catheter, and extends along the second catheter to the outside of the second catheter.

[0009] Optionally, the port body further comprises a base, the base is provided with a groove, and the port body is provided on the groove.

[0010] Optionally, a second opening is provided on the groove, the first opening is arranged adjacent to the second opening, the second end of the catheter body passes through the diaphragm assembly and sequentially passes through the first opening and the second opening to enter the second catheter, and extends along the second catheter to the outside of the second catheter.

[0011] Optionally, the port body further includes a first cover body, the first cover body cooperates with the port body to form a first accommodating cavity, and the diaphragm assembly is disposed in the first accommodating cavity.

[0012] Optionally, the first cover body has a third opening, the first opening and the second opening are arranged in a vertical direction, a limiting member is provided at the third opening, and the diaphragm assembly is arranged on the first accommodating cavity through the limiting member.

[0013] Optionally, the port body further includes a second cover body, the second cover body is provided with a second accommodating cavity, the port body is arranged in the second accommodating cavity, the second accommodating cavity has a fourth opening, the fourth opening is provided with a slot, and the port body is fixed in the second accommodating cavity through the slot.

[0014] Optionally, the diaphragm assembly includes a fixing member and a diaphragm disposed on the fixing member;

[0015] The fixing member is arranged at the fourth opening, and the diaphragm is fixed to the second cover body through the fixing member.

[0016] Optionally, a plurality of through holes are provided on the side wall of the second end of the second conduit.

[0017] Optionally, the infusion port further comprises a third catheter, and the third catheter is sleeved on the second catheter.

[0018] Optionally, both the second cover and the second guide tube contain developer.

[0019] An embodiment of the present invention provides an infusion port, comprising 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 connected to the port body through a first opening arranged on the port body, the second end of the first catheter passes through the diaphragm assembly to enter the second catheter, and extends along the second catheter to the outside of the second catheter, the first catheter drives the second catheter to puncture the target blood vessel together, after the puncture is successful, the position of the second catheter is kept unchanged, the first catheter is slowly withdrawn, and finally the port body and the second catheter are successfully implanted into the patient's body, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of an infusion port provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the component structure of an infusion port provided in an embodiment of the present invention;

[0022] Figure 3A schematic structural diagram of a first conduit provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 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 outside the first catheter 20;

[0025] The port body 10 includes a port body 11 and a diaphragm assembly 12 disposed in the port body 11. The port 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 is connected to the first opening 111.

[0026] The first catheter 20 includes a catheter body 21 and a handle 22 disposed at a first end of the catheter body 21 . The second end of the catheter body 21 passes through the diaphragm assembly 12 and enters the second catheter 30 , and extends along the second catheter 30 to the outside of the second catheter 30 .

[0027] An infusion port is a closed infusion device that is completely implanted in the human body. It includes a catheter with the tip located in the superior vena cava and an injection seat buried under the skin. It is a professional infusion device placed in the body to reduce the stimulation of the patient's blood vessels by drugs. In addition, the implantable infusion port can be carried for life, has a long service life, and is completely buried in the body, reducing the risk of infection, and there is no catheter left outside the body to cause inconvenience to bathing and other daily life. At present, the infusion port is mainly used for patients who need long-term, repeated infusions; patients who need blood draws, blood transfusions, and infusions of nutritional drugs; patients who have contrast agents injected; and patients who use chemotherapy drugs for a long time.

[0028] In this embodiment, after the surgeon anesthetizes the patient and performs other preoperative preparations, the surgeon selects a suitable port implantation location on the patient, makes only one incision, and then implants the infusion port into the patient's body.

[0029] Among them, the first catheter 20 is a puncture catheter, and the puncture catheter body is made of nickel-titanium alloy, which has the characteristics of excellent flexibility and excellent force conduction performance. After the port body is implanted in the patient's body, the puncture catheter is pushed through the ultrasonic device for observation. When the distal end of the puncture catheter reaches the vicinity of the predetermined blood vessel, the puncture catheter is slowly pushed. Through the real-time display of the ultrasonic image, the position is adjusted until the distal needle tip of the puncture catheter is sent to the blood vessel to be punctured. When the puncture catheter gradually enters the blood vessel, blood will flow into the puncture catheter through the small hole behind the needle tip. The blood pressure will cause the blood to flow along the inner cavity of the puncture catheter until it flows out from the handle of the puncture catheter. If there is a steady flow of blood at the handle, it proves that the blood vessel puncture is successful. After the puncture catheter successfully punctures the target blood vessel, it drives the infusion tube to enter the blood vessel together. In order to prevent the needle tip of the puncture catheter from scratching the inner wall of the blood vessel, the puncture catheter part can be withdrawn into the infusion tube. A scale can also be set on the wall of the infusion tube to determine the relative position of the puncture catheter and the infusion tube by the scale on the wall. After the infusion tube is implanted, the puncture catheter is withdrawn from the infusion tube and finally separated from the port.

[0030] The second catheter 30 is an infusion tube, that is, a catheter located in the superior vena cava. Since the infusion tube needs to be left in the patient's body eventually, the material of the infusion tube needs to be extremely soft to reduce the possibility of falling off due to excessive movement of the patient. In addition, it can also improve the patient's comfort.

[0031] Compared with the existing infusion port system, during use, the operator needs to make at least two incisions on the patient, and the incisions are larger: the first wound is for vascular puncture, and one end of the infusion tube is sent into the blood vessel to reach the lesion site. At the same time, the other end of the infusion tube is sent to the pre-selected port implantation position through a subcutaneous tunnel; the second wound is for port implantation and connection between the port and the infusion tube. The connection between the port and the infusion tube is fragile and easy to break, which can easily cause the system to fail, and infection can also occur due to multiple incisions. By setting up a puncture catheter, the puncture catheter can lead the infusion tube to the target blood vessel without making another incision on the patient's body, reducing the risk of wound infection.

[0032] The embodiment of the present invention provides an infusion port, including a port body 10, a first catheter 20 and a second catheter 30 wrapped outside the first catheter 20, wherein the port body 10 includes a port body 10 and a diaphragm assembly 12 arranged in the port body 10 body, a first end of the first catheter 20 is provided with a handle 22, the second catheter 30 is connected to the port body 10 body through a first opening 111 arranged on the port body 10 body, the second end of the first catheter 20 passes through the diaphragm assembly 12 to enter the second catheter 30, and extends along the second catheter 30 to the outside of the second catheter 30, the first catheter 20 drives the second catheter 30 to puncture the target blood vessel together, after the puncture is successful, the position of the second catheter 30 is kept unchanged, the first catheter 20 is slowly withdrawn, and finally the port body 10 and the second catheter 30 are successfully implanted into the patient's body, and the operation is simple.

[0033] Optionally, the port body 10 further includes a base 13 , the base 13 is provided with a groove, and the main body of the port body 10 is provided on the groove.

[0034] In this embodiment, a groove is provided on the base 13 and the main body of the port 10 is matched with the groove, so that the main body of the port 10 is fixed on the base 13, thereby improving the stability of the port 10 in the patient's body.

[0035] Optionally, a second opening 131 is provided on the groove, and the first opening 111 is arranged adjacent to the second opening 131. The second end of the catheter body 21 passes through the diaphragm assembly 12 and sequentially passes through the first opening 111 and the second opening 131 to enter the second catheter 30, and extends along the second catheter 30 to the outside of the second catheter 30.

[0036] Among them, a second opening 131 is set at the bottom end of the base 13, and a first opening 111 is set at the bottom end of the port body 10, and the second opening 131 is larger than the first opening 111. The port body 10 is set on the base 13, and the second opening 131 and the first opening 111 are arranged to overlap, so that the port body 10 set on the base 13 is relatively fixed to the base 13.

[0037] Optionally, the port body 10 further includes a first cover body 14 , wherein the first cover body 14 cooperates with the main body of the port body 10 to form a first accommodating cavity, and the diaphragm assembly 12 is disposed in the first accommodating cavity.

[0038] In this embodiment, a first cover body 14 is provided on the port body 10, and the first cover body 14 cooperates with the port body 10 to form a first accommodating chamber. The diaphragm assembly 12 is provided at the upper part of the first accommodating chamber, and the diaphragm assembly 12 divides the first accommodating chamber into two spaces. When the infusion port system is used, the needle on the infusion set punctures the diaphragm assembly 12 and enters the first accommodating chamber to retain the liquid medicine in the first accommodating chamber. Under the action of atmospheric pressure, when the pressure in the first accommodating chamber is greater than the venous pressure, the liquid in the first accommodating chamber flows into the target blood vessel along the infusion tube.

[0039] Optionally, the first cover body 14 has a third opening 141 , the first opening 111 and the second opening 131 are vertically arranged, a limiting member is arranged at the third opening 141 , and the diaphragm assembly 12 is arranged on the first accommodating cavity through the limiting member.

[0040] The first cover body 14 is provided with a third opening 141, and the third opening 141 is perpendicular to the opening directions of the first opening 111 and the second opening 131, wherein the first opening 111 and the second opening 131 are both provided at the bottom end of the port body 10, that is, the third opening 141 is provided at the top end of the port body 10 and is perpendicular to the directions of the first opening 111 and the second opening 131.

[0041] A limit member is provided at the third opening 141, wherein the limit member is two bosses surrounding the third opening 141 and arranged opposite to each other, and a slot matching the boss is provided on the diaphragm assembly 12. When the diaphragm assembly 12 is rotated, the slot on the diaphragm assembly 12 passes through the boss and is fixed at the boss.

[0042] The stopper may also be a pressure strip disposed around the third opening 141, so that the cross-sectional area of ​​the diaphragm assembly 12 is smaller than the third opening 141, so that the diaphragm assembly 12 is fixed relative to the third opening 141. The specific structure of the stopper is not limited in this embodiment.

[0043] In this embodiment, a stopper is provided 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.

[0044] Optionally, the port body 10 further includes a second cover body 15, the second cover body 15 is provided with a second accommodating cavity, the port body 11 is arranged in the second accommodating cavity, the second accommodating cavity has a fourth opening 151, and the fourth opening 151 is provided with a slot, and the port body 10 is fixed in the second accommodating cavity through the slot.

[0045] The second cover body 15 is a hollow structure, the port body 10 is arranged in the hollow structure, and has a fourth opening 151, wherein the fourth opening 151 is in the same direction as the third opening 141, and the fourth opening 151 is communicated with the third opening 141, and a card slot arranged along the opening is provided at the fourth opening 151, so that the cross-sectional area of ​​the fourth opening 151 is smaller than the port body 10, thereby fixing the port body 10 in the second accommodating cavity.

[0046] In addition, the second cover 15 can also be a circular ring structure, one end of which is flush with and fixed to the base 13, and the first cover 14 is fixed to the other end of the circular ring structure through a slot, which not only meets its function of protecting the port body 10 but also reduces its own weight.

[0047] Optionally, the diaphragm assembly 12 includes a fixing member 121 and a diaphragm 122 disposed on the fixing member 121;

[0048] The fixing member 121 is disposed at the fourth opening 151 , and the diaphragm 122 is fixed to the second cover body 15 through the fixing member 121 .

[0049] The diaphragm 122 is made of silicone material, which has good elasticity and softness and can withstand tens of thousands of needle punctures. The fixing member 121 arranged around the edge of the diaphragm 122 can be made of silicone or rubber material. The specific material is not limited in this embodiment. In addition, the maximum number of punctures or the maximum use time of the diaphragm 122 can be set. When the number of punctures or the use time is exceeded, the diaphragm 122 can be replaced, or the diaphragm 122 and the fixing member 121 can be replaced together, thereby improving the flexible use of the infusion port system and improving the economic efficiency.

[0050] The fixing member 121 is arranged 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 from the fourth opening 151 and is stuck at the fourth opening 151 , thereby fixing the diaphragm 122 arranged on the fixing member 121 on the second cover body 15 .

[0051] Optionally, a plurality of through holes are provided on the side wall of the second end of the second conduit 30 .

[0052] In this embodiment, after the infusion port is implanted in the patient's body, the second end of the second catheter 30 is located in the target blood vessel, and the drug solution penetrates the diaphragm 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. By setting a through hole on the side wall of the second end of the second catheter 30, the drug solution is released more gently and evenly, which is not only beneficial to reduce the impact damage to the blood vessel during drug release, but also beneficial to the uniform absorption of the drug by the lesion site.

[0053] Optionally, the infusion port further includes a third catheter 40 , and the third catheter 40 is sleeved on the second catheter 30 .

[0054] The third catheter 40 is a tearable sheath, which is sleeved on the second catheter 30. The tearable sheath includes a sheath tube and a handle 22 arranged at one end of the sheath tube, and the other end of the sheath tube gradually shrinks. Due to its high hardness, the tip of the sheath tube can be used to assist puncture, and the outer sheath can also provide sufficient mechanical support for the construction and dredging of the subcutaneous tunnel. When the puncture catheter is successfully punctured, the tearable sheath and the infusion tube are slowly pushed so that they can enter the blood vessel along the passage built by the puncture catheter. After the infusion tube successfully enters the blood vessel, the position of the infusion tube and the puncture catheter is kept unchanged, slowly withdrawn, and the outer sheath is torn until it is completely detached from the second catheter 30.

[0055] Optionally, both the second cover 15 and the second guide tube 30 contain developer.

[0056] The developer refers to a drug that turns the latent image generated by the photosensitive material after exposure into a visible image. The developer can be added to the second cover 15 and the second conduit 30 during production. In addition, when the patient is examined, the developer can be injected into the patient, and the developer enters various parts of the human body for metabolism. The lesion site metabolizes a large amount of the developer, and a large amount of the developer will be concentrated in the lesion site, so that the diseased area can be easily found by scanning with an ultrasonic device.

[0057] In this embodiment, by providing the second cover 15 and the second catheter 30 with developer, when the patient undergoes implantation of the infusion port, the specific location of the infusion port in the patient's body can be easily found by scanning with an ultrasonic device, and the status of the infusion port system in the body can be checked.

[0058] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. An infusion port, characterized in that: It comprises a port body, a first conduit, and a second conduit wrapped outside the first conduit; The port body comprises a port body and a diaphragm assembly disposed in the port body, the port body has a first opening, the second conduit is located at the first opening, and a first end of the second conduit is connected to the first opening; The first catheter comprises a catheter body and a handle disposed at a first end of the catheter body, and a second end of the catheter body passes through the diaphragm assembly and enters the second catheter, and extends along the second catheter to the outside of the second catheter; The port body also includes a base, the base is provided with a groove, and the port body is provided on the groove; The port body further comprises a first cover body, wherein the first cover body cooperates with the port body to form a first accommodating cavity, and the diaphragm assembly is arranged in the first accommodating cavity; The infusion port further comprises a third catheter, wherein the third catheter is sleeved on the second catheter; The third catheter is a tearable sheath.

2. The infusion port according to claim 1, characterized in that: The groove is provided with a second opening, the first opening is adjacent to the second opening, the second end of the conduit body passes through the diaphragm assembly and sequentially passes through the first opening and the second opening to enter the second conduit, and extends along the second conduit to the outside of the second conduit.

3. The infusion port according to claim 1, characterized in that: The first cover body has a third opening, the first opening and the second opening are arranged in a vertical 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.

4. The infusion port according to claim 1, characterized in that: The port body also includes a second cover body, the second cover body is provided with a second accommodating cavity, the port body is arranged in the second accommodating cavity, the second accommodating cavity has a fourth opening, the fourth opening is provided with a slot, and the port body is fixed in the second accommodating cavity through the slot.

5. The infusion port according to claim 4, characterized in that: The diaphragm assembly includes a fixing member and a diaphragm arranged on the fixing member; The fixing member is arranged at the fourth opening, and the diaphragm is fixed to the second cover body through the fixing member.

6. The infusion port according to claim 1, characterized in that: A plurality of through holes are arranged on the side wall of the second end of the second conduit.

7. The infusion port according to claim 4, characterized in that: The second cover and the second guide tube both contain developer.

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