CN111905234A

CN111905234A - Balloon catheter and medical equipment

Info

Publication number: CN111905234A
Application number: CN202010871305.5A
Authority: CN
Inventors: 官国锋; 付国亭; 欧阳效斌; 许宗兰; 李午阳; 邓春生
Original assignee: Shenzhen Qingyuan Medical Instrument Co ltd
Current assignee: Shenzhen Qingyuan Medical Instrument Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-11-10

Abstract

The embodiment of the invention relates to the technical field of medical instruments, in particular to a balloon catheter and medical equipment, wherein the balloon catheter comprises a catheter, a first drainage cavity and a second drainage cavity are arranged, the first drainage cavity and the second drainage cavity are arranged along the length direction of the catheter, the front end of the first drainage cavity is sealed, the front end of the second drainage cavity is sealed, a first through hole is formed in the first drainage cavity, and a second through hole is formed in the second drainage cavity; the balloon is provided with an accommodating cavity and an opening communicated with the accommodating cavity, the front end of the first liquid guide cavity and the front end of the second liquid guide cavity are accommodated in the accommodating cavity, the opening of the balloon is sealed with the catheter, the first through hole is communicated with the accommodating cavity, and the second through hole is communicated with the accommodating cavity. Through the balloon catheter, liquid is fed into the balloon through the first liquid guide cavity, and then discharged from the second liquid guide cavity, so that the exhaust can be completed through one-time liquid feeding and discharging, and the balloon catheter is very convenient.

Description

Balloon catheter and medical equipment

Technical Field

The embodiment of the invention relates to the technical field of medical instruments, in particular to a balloon catheter and medical equipment.

Background

Microsacculus microballoon sac Pressing (PBC) of the semilunar ganglion of the trigeminal nerve is one of the first treatment methods for treating trigeminal neuralgia in the world at present, and the principle is to selectively destroy pain temperature sensation nerve fibers by pressing the semilunar ganglion of the trigeminal nerve through a micro saccule. After the treatment is finished, most patients can completely eliminate the pain. The whole treatment of the trigeminal semilunar ganglion microballoon sac compression operation (PBC) is about 30 minutes, and the patient can be recovered and discharged after being hospitalized for 3 to 5 days. The process of trigeminal semilunar ganglion microballoon sac compression (PBC) comprises that a saccule catheter reaches the Mylar sac through an oval foramen to fully compress the trigeminal semilunar ganglion. When the balloon catheter reaches the My's capsule through the oval hole, the balloon catheter needs to be injected with normal saline for air exhaust.

In the process of implementing the invention, the inventor of the invention finds that: at present, the balloon catheter only has one cavity, gas in the balloon catheter can be completely removed only by repeatedly injecting and emptying normal saline, the time of the whole operation is prolonged by repeatedly injecting and emptying the normal saline, and the user experience is not good.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a balloon catheter and medical device that overcomes or at least partially solves the above-mentioned problems.

According to an aspect of an embodiment of the present invention, there is provided a balloon catheter including: the catheter is provided with a first drainage cavity and a second drainage cavity, the first drainage cavity and the second drainage cavity are arranged along the length direction of the catheter, the front end of the first drainage cavity is sealed, the front end of the second drainage cavity is sealed, the first drainage cavity is provided with a first through hole, and the second drainage cavity is provided with a second through hole; the sacculus is provided with and accepts the chamber and communicates accept the opening in chamber, the front end in first drain chamber and the front end in second drain chamber is accepted in accept the chamber, the opening part of sacculus with the pipe is sealed, first through-hole with accept the chamber intercommunication, the second through-hole with accept the chamber intercommunication.

In an optional mode, the second through hole is close to the front end of the second drainage cavity, and the first through hole is close to the rear end of the first drainage cavity.

In an optional mode, the balloon catheter further comprises a tee, a first channel of the tee is inserted into the rear end of the catheter, a second channel of the tee is communicated with the rear end of the first liquid guide cavity, the second channel is sealed with the rear end of the second liquid guide cavity, and one end of a third channel of the tee is communicated with the second liquid guide cavity.

In an optional manner, the balloon catheter further comprises an indicating balloon provided with a hollow cavity, and the hollow cavity is communicated with the other end of the third channel.

In an optional manner, the balloon catheter further includes a conduction switch, one end of the conduction switch is connected to the other end of the third channel, and the other end of the conduction switch is connected to the hollow cavity.

In an alternative mode, the conduction switch includes a connection pipe and a sealing clip; one end of the connecting pipe is communicated with the other end of the third channel, and the other end of the connecting pipe is communicated with the hollow cavity; the sealing clamp is arranged on the connecting pipe and used for clamping the connecting pipe.

In an optional mode, the balloon catheter further comprises a developing member, the developing member is arranged at the opening of the balloon, and the developing member is used for sealing the opening of the balloon and the catheter.

In an alternative mode, the longitudinal cross-sectional area of the first drainage lumen is smaller than the longitudinal cross-sectional area of the second drainage lumen.

In an alternative mode, the number of the second through holes is multiple.

According to an aspect of an embodiment of the present invention, there is provided a medical apparatus including the balloon catheter described above.

The embodiment of the invention has the beneficial effects that: a balloon catheter and a medical device are provided, the balloon catheter including a catheter and a balloon. The catheter is provided with a first drainage cavity and a second drainage cavity, the first drainage cavity and the second drainage cavity are arranged along the length direction of the catheter, the front end of the first drainage cavity is sealed, and the front end of the second drainage cavity is sealed. The first drainage cavity is provided with a first through hole, and the second drainage cavity is provided with a second through hole. The sacculus is provided with accepts the chamber and communicates accept the opening in chamber. The front end of the catheter is inserted into the accommodating cavity of the balloon, and the opening of the balloon is sealed with the catheter. The first liquid guide cavity is communicated with the containing cavity of the balloon through the first through hole. The second drainage cavity is communicated with the containing cavity of the balloon through the second through hole. Through the sacculus pipe, through first drain chamber feed liquor, liquid gets into the sacculus, then passes through the second drain chamber goes out the liquid to can realize once feed liquor and go out the liquid and can accomplish the exhaust, it is very convenient.

Drawings

FIG. 1 is a schematic view of a balloon catheter provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view of section A of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of section B of FIG. 1 in accordance with an embodiment of the present invention;

fig. 4 is a longitudinal cross-sectional view of a catheter provided in accordance with an embodiment of the present invention.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a balloon catheter 100 includes: catheter 10, balloon 20, tee 30, indicator balloon 40, on-switch 50, and visualization member 60. The catheter 10 is provided with a first drainage cavity 101 and a second drainage cavity 102, the first drainage cavity 101 and the second drainage cavity 102 are arranged along the length direction of the catheter 10, the front end of the first drainage cavity 101 is sealed, and the front end of the second drainage cavity 102 is sealed. The front end of the catheter 10 is inserted into the balloon 20, the opening 202 of the balloon 20 is sealed with the catheter 10 through the developing member 60, and the first drainage lumen 101 and the second drainage lumen 102 are respectively communicated with the balloon 20. The first channel 301 of the tee 30 is used for plugging the rear end of the conduit 10. The second channel 302 of the three-way element 30 is communicated with the rear end of the first drainage cavity 101, the second channel 302 of the three-way element 30 is sealed with the rear end of the second drainage cavity 102, and one end of the third channel 303 of the three-way element 30 is communicated with the second drainage cavity 102. The other end of the third channel 303 is communicated with the indication bag 40 through the conduction switch 50. Through the sacculus pipe 100, through first drain cavity 101 feed liquid, liquid gets into sacculus 20, then through second drain cavity 102 goes out liquid to can realize once feeding liquid and go out liquid and accomplish the exhaust, it is very convenient.

It should be noted that, when the balloon catheter 100 is used, one end of the balloon catheter 100 reaches the mylar sac through the oval hole, the end of the catheter 10, the first drainage lumen 101 and the second drainage lumen 102 close to the balloon catheter 100 is a front end, and the end opposite to the front end is a rear end.

Referring to fig. 2, the balloon 20 is provided with a receiving cavity 201 and an opening 202 communicating with the receiving cavity 201, with respect to the balloon 20 and the developing member 60. The front end of the first drainage cavity 101 and the front end of the second drainage cavity 102 are accommodated in the accommodating cavity 201, the first drainage cavity 101 is communicated with the accommodating cavity 201, and the second drainage cavity 102 is communicated with the accommodating cavity 201. The opening 202 of the balloon 20 is sealed to the catheter 10 by the developer 60.

In some embodiments, the catheter 10 is provided with a constriction, and the visualization element 60 is located at the constriction (not shown).

It should be noted that, in some embodiments, the number of the developing members 60 is two, the number of the necks is two, and one developing member 60 corresponds to one neck. In some embodiments, a said developer 60 is disposed at the opening 202 of the balloon 20 for sealing with the catheter 10 at the opening 202 of the balloon 20. The other developing member 60 is used for sealing the balloon 20 with the front end of the catheter 10, so as to divide the accommodating cavity 201 into a closed cavity (not labeled) and a filling cavity (not labeled), wherein the first drainage cavity 101 is communicated with the filling cavity, and the second drainage cavity 102 is communicated with the filling cavity. Through setting up another developing part 60, then at first drainage lumen 101 lets in liquid, the space in the sacculus 20 that liquid needs to be engorged become by it becomes to fill the chamber to accept the chamber 201, the space that liquid needs to be engorged shrinks promptly, then can realize quick exhaust on the one hand, on the other hand can realize when the exhaust finishes filling sacculus 20 the quick filling of sacculus 20.

Illustratively, in some embodiments, the visualization element 60 is a PE thread that is stitched to the balloon 20. The PE wire is coated with a developer. In some embodiments, the developer comprises a mixed solution of barium sulfate and a resin gum.

Referring to fig. 2 and 3, the catheter 10 has a first drainage lumen 101 and a second drainage lumen 102 both disposed along the length direction of the catheter 10, and preferably, the first drainage lumen 101 and the second drainage lumen 102 are parallel. First drain chamber 101 is provided with first through-hole 1011, first through-hole 1011 with sacculus 20 accept chamber 201 intercommunication, first through-hole 1011 is used for the feed liquor. The second drainage cavity 102 is provided with a second through hole 1021, the second through hole 1021 is communicated with the containing cavity 201 of the balloon 20, and the second through hole 1021 is used for draining liquid.

In some embodiments, second through hole 1021 is located near the front end of second drainage lumen 102, and first through hole 1011 is located near the rear end of first drainage lumen 101, thereby facilitating evacuation of gas from balloon catheter 100.

It should be noted that, in some embodiments, referring to fig. 4, the longitudinal cross-sectional area of the first drainage lumen 101 is smaller than the longitudinal cross-sectional area of the second drainage lumen 102, so that when liquid is introduced into the first drainage lumen 101, the liquid is not easy to flow back, that is, the liquid is not easy to flow back into the first drainage lumen 101 from the second drainage lumen 102, thereby facilitating evacuation of gas in the balloon catheter 100. It should be noted that the longitudinal cross-sectional shape of first drainage lumen 101 and/or the longitudinal cross-sectional shape of second drainage lumen 102 may be any shape, preferably circular. The longitudinal sectional shape of first drainage lumen 101 and/or the longitudinal sectional shape of second drainage lumen 102 are not limited in the embodiments of the present invention.

In some embodiments, the number of the second through holes 1021 is multiple, liquid enters the second drainage lumen 102 through the second through holes 1021, and the second drainage lumen 102 is drained smoothly, so as to facilitate evacuation of gas in the balloon catheter 100.

It is noted that in some embodiments, a first sealing plug 1012 is disposed at a front end of first drainage cavity 101, so as to seal the front end of first drainage cavity 101. A second sealing plug 1022 is disposed at the front end of the second drainage cavity 102, so as to seal the front end of the second drainage cavity 102. A third sealing plug 1023 is arranged at the rear end of the second drainage cavity 102, so that the rear end of the second drainage cavity 102 is sealed with the second channel 302 of the tee 30. In some embodiments, the first sealing plug 1012 is disposed at the front end of the first drainage cavity 101, and quick-drying glue is filled between the first sealing plug 1012 and the front end of the first drainage cavity 101. The second sealing plug 1022 is disposed at the front end of the second liquid guiding cavity 102, and quick-drying glue is filled between the second sealing plug 1022 and the front end of the second liquid guiding cavity 102. The rear end of the second drainage cavity 102 is provided with the third sealing plug 1023, and quick-drying glue is filled between the third sealing plug 1023 and the rear end of the second drainage cavity 102.

It will be appreciated that in some embodiments, the second drainage lumen 102 is provided with a third through hole 1024, and the third through hole 1024 is used for communicating the second drainage lumen 102 with one end of the third channel 303 of the tee 30.

It should be noted that the catheter 10 is made of a polymer material, and the material is preferably Pebax, PVC or other medical materials.

For the three-way component 30, the first channel 301 of the three-way component 30 is inserted into the rear end of the catheter 10, the second channel 302 of the three-way component 30 is communicated with the rear end of the first liquid guide cavity 101, the second channel 302 is sealed with the rear end of the second liquid guide cavity 102 by the third sealing plug 1023, and one end of the third channel 303 of the three-way component 30 is communicated with the second liquid guide cavity 102 by the third through hole 1024. It is understood that the first channel 301 of the tee 30 and the rear end of the catheter 10 are filled with a sealing gel.

It is noted that, in some embodiments, the central axes of the first channel 301 and the second channel 302 coincide, so as to facilitate the passage of liquid into the first drainage chamber 101 through the second channel 302. It will be appreciated that the third channel 303 communicates with a side wall of the first channel 301 and/or the second channel 302.

It is worth noting that in some embodiments, the tee 30 is a tee luer fitting.

With the above-described indicating bag 40, the indicating bag 40 is provided with a hollow chamber (not shown) which communicates with the other end of the third passage 303 of the tee 30. By arranging the indicating bag 40, when liquid is introduced into the first liquid guide cavity 101 to exhaust the balloon catheter 100, the hollow cavity of the indicating bag 40 is filled with the liquid, namely, the air in the balloon catheter 100 is indicated to be exhausted.

It should be noted that in some embodiments, a one-way valve (not shown) is connected to indicator bladder 40 and is configured to block air from entering indicator bladder 40 and, thus, entering second drainage lumen 102 via third passageway 303.

As for the above conduction switch 50, one end of the conduction switch 50 is connected to the other end of the third channel 303 of the three-way element 30, and the other end of the conduction switch 50 is connected to the hollow cavity of the indication bag 40. The conducting switch 50 is used for conducting the communication between the third channel 303 and the indicating bag 40 or closing the communication between the third channel 303 and the indicating bag 40.

In some embodiments, the on-switch 50 includes a connection tube (not shown) and a sealing clip (not shown). One end of the connecting tube is communicated with the other end of the third channel 303, and the other end of the connecting tube is communicated with the hollow cavity of the indicating bag 40. The sealing clip is arranged on the connecting pipe, and the sealing clip is used for clamping the connecting pipe, so that the communication between the third channel 303 and the indicating bag 40 is closed. It will be appreciated that the sealing clip also serves to communicate between the third passageway 303 and the indicator bladder 40.

It should be noted that, in some embodiments, the connection pipe is a flexible pipe. The sealing clamp is a Robert tube clamp.

It is understood that the on-switch 50 is not limited to the above-described structure, and may have other forms, for example, the on-switch 50 includes a valve (not shown) having one end connected to the other end of the third passage 303 and the other end connected to the hollow cavity of the indicating bag 40.

For the balloon catheter 100, in use, one end of the balloon catheter 100 where the balloon 20 is located, that is, the front end of the balloon catheter 100, is sent into the oval hole, and then liquid is introduced into the first liquid guide cavity 101 through the second channel 302 of the three-way member 30, wherein the flow path of the liquid is, the first liquid guide cavity 101, the first through hole 1011, the accommodating cavity 201 of the balloon 20, the second through hole 1021, the second liquid guide cavity 102, the third channel 303 of the three-way member 30, the connecting tube, and the indicating bag 40. While the liquid is flowing, the gas within the balloon catheter 100 is evacuated. When the air exhaust is finished and the connecting tube is clamped by the sealing clip, the developing agent can be introduced into the first liquid guide cavity 101, and the containing cavity 201 of the balloon 20 is inflated, so that the treatment is completed when the balloon 20 is inflated to have the predetermined compression strength and compression time.

In an embodiment of the present invention, balloon catheter 100 includes catheter 10 and balloon 20. The catheter 10 is provided with a first drainage cavity 101 and a second drainage cavity 102, the first drainage cavity 101 and the second drainage cavity 102 are arranged along the length direction of the catheter 10, the front end of the first drainage cavity 101 is sealed, and the front end of the second drainage cavity 102 is sealed. First drainage chamber 101 is provided with first through-hole 1011, second drainage chamber 102 is provided with second through-hole 1021. The balloon 20 is provided with a containing cavity 201 and an opening 202 communicated with the containing cavity 201. The front end of the catheter 10 is inserted into the containing cavity 201 of the balloon 20, and the opening 202 of the balloon 20 is sealed with the catheter 10. The first drainage cavity 101 is communicated with the containing cavity 201 of the balloon 20 through the first through hole 1011. The second drainage lumen 102 communicates with the receiving lumen 201 of the balloon 20 through the second through hole 1021. Through the sacculus pipe 100, through first drain cavity 101 feed liquid, liquid gets into sacculus 20, then through second drain cavity 102 goes out liquid to can realize once feeding liquid and go out liquid and accomplish the exhaust, it is very convenient.

Embodiments of the present invention also provide a medical apparatus including the balloon catheter 100. For the specific structure and function of the balloon catheter 100, reference may be made to the above embodiments, and details are not repeated here.

It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A balloon catheter, comprising:

the catheter is provided with a first drainage cavity and a second drainage cavity, the first drainage cavity and the second drainage cavity are arranged along the length direction of the catheter, the front end of the first drainage cavity is sealed, the front end of the second drainage cavity is sealed, the first drainage cavity is provided with a first through hole, and the second drainage cavity is provided with a second through hole;

the sacculus is provided with and accepts the chamber and communicates accept the opening in chamber, the front end in first drain chamber and the front end in second drain chamber is accepted in accept the chamber, the opening part of sacculus with the pipe is sealed, first through-hole with accept the chamber intercommunication, the second through-hole with accept the chamber intercommunication.

2. The balloon catheter of claim 1, wherein the second through-hole is proximate a front end of the second drainage lumen and the first through-hole is proximate a rear end of the first drainage lumen.

3. The balloon catheter according to claim 1, further comprising a tee, wherein a first channel of the tee is inserted into a rear end of the catheter, a second channel of the tee is communicated with a rear end of the first drainage cavity, the second channel is sealed with a rear end of the second drainage cavity, and one end of a third channel of the tee is communicated with the second drainage cavity.

4. A balloon catheter according to claim 3, further comprising an indicator balloon provided with a hollow cavity communicating with the other end of the third passage.

5. The balloon catheter according to claim 4, further comprising a conduction switch, one end of the conduction switch being connected to the other end of the third channel, the other end of the conduction switch being connected to the hollow cavity.

6. The balloon catheter of claim 5, wherein the conduction switch comprises a connection tube and a sealing clip;

one end of the connecting pipe is communicated with the other end of the third channel, and the other end of the connecting pipe is communicated with the hollow cavity;

the sealing clamp is arranged on the connecting pipe and used for clamping the connecting pipe.

7. A balloon catheter according to claim 1, further comprising a developer disposed at the opening of the balloon, the developer being adapted to seal the opening of the balloon with the catheter.

8. A balloon catheter according to claim 1, wherein a longitudinal cross-sectional area of the first drainage lumen is smaller than a longitudinal cross-sectional area of the second drainage lumen.

9. The balloon catheter according to claim 1, wherein the number of the second through holes is plural.

10. A medical device comprising a balloon catheter according to any one of claims 1-9.