CN108325047B - External guide cardiac catheter device - Google Patents

Abstract

The invention discloses an extracorporeal guiding cardiac catheter device, which relates to the field of clinical medicine and discloses an extracorporeal guiding cardiac catheter device, characterized in that: the cardiac catheter comprises a catheter body, a photometric section, a distance measurement section, a detection section and a The top ball end; the photometric section and the detection section include a light-emitting structure of organic light-emitting materials, which can accurately locate the position of the cardiac catheter inserted into the body outside the body, and almost eliminate the X-ray radiation during the cardiac catheter placement operation. , to protect the health of patients and medical staff.

Description

A kind of extracorporeal guiding cardiac catheter device

technical field

The invention relates to the field of clinical medicine, in particular to an extracorporeal guiding cardiac catheter device.

Background technique

Cardiac catheterization. The technology of inserting catheters from peripheral blood vessels and sending them to various places in the heart cavity and great blood vessels is used to obtain information, achieve the purpose of examination and diagnosis, and can also carry out certain treatment measures. The catheter can be sent into the right parts of the heart and the pulmonary artery, and can also be sent into the left parts of the heart and the aorta, and can be injected with contrast agents or clinical electrophysiological examinations through the catheter.

Traditional cardiac catheters are often positioned simply by the length of catheter insertion, and are precisely positioned by a C-arm X-ray machine. Unlike ordinary X-ray machines, in the process of cardiac catheterization, it often takes a long time to complete the operation. After the operation is completed, the potential danger of medical ionizing radiation causing body damage to medical staff has been paid more and more attention. During the operation, the awareness of ionizing radiation protection should be raised among the relevant personnel, and proper protective measures should be implemented for the operating medical staff and the recipients, so as to reduce the harm of ionizing radiation as much as possible. Status of ionizing radiation protection in the operating room Our department uses C-arm X-ray machines. In practice, most medical staff think that intraoperative operations are cumbersome. In order to shorten the use time of C-arm X-ray machines, self-protection is more important than the protection of others. The phenomenon of long exposure time, many exposure times, and inattentive or incorrect use of protective equipment. In addition, the awareness of patients and nurses and other personnel requiring protection is weak, resulting in a weak status quo of ionizing radiation protection.

The adverse effects of ionizing radiation on the human body The damage of ionizing radiation to the human body is mainly due to the biological effect of the characteristics of ionizing radiation. After ionizing radiation irradiates the body, it can cause obstacles to living tissue cells and body fluids, and even cells are destroyed, and the degree of damage is proportional to the amount of ionizing radiation. Low-dose ionizing radiation affects important cellular responses leading to changes in gene expression that induce carcinogenesis. After long-term low-dose irradiation, the most obvious changes in peripheral blood cells are leukopenia of varying degrees. The incidences of teratogenesis, miscarriage and ectopic pregnancy caused by radiation injury were higher than those in the normal population. Can make the lens cloudy, resulting in radioactive cataracts. Can inhibit bone marrow hematopoiesis.

In the prior art, technicians often pay attention to the improvement of catheter materials, but do not pay attention to how to conveniently and harmlessly perform positioning operations, such as:

The invention patent with application publication number CN106823102A discloses a double-wire braided angiography catheter in the field of medical devices, including a catheter body, a transition section and a soft end: the hardness of the catheter body, the transition section and the soft end are sequentially Lowering; the open end of the soft end is provided with a first stepped surface that shrinks radially inward, and the inner circumference of the first end of the transition section overlaps with the outer circumference of the first stepped surface; the transition section The second end of the duct is provided with a second stepped surface that shrinks radially inward. The conduit body includes an inner tube, a metal pipe network and an outer pipe that are arranged radially from the inside to the outside. The metal pipe network is made of bimetallic pipes. The length of the metal pipe network is smaller than the length of the inner pipe and the outer pipe, so that the inner circumference of the first end of the catheter body overlaps the outer circumference of the second step surface. catch. The technical effect is that it has better compression resistance, toughness, torsion resistance and tensile force, reduces the peristaltic friction force, reduces the damage to the blood vessel surface mucosa, reduces the secondary injury, and improves the comfort of the patient.

The invention patent with the application publication number CN106334250A provides an angiographic catheter anti-reverse flow device, which includes an outer sleeve and an anti-reverse flow assembly, and the anti-reverse flow assembly includes a sleeve seat, a connector, a valve, and a valve base. Set at one end of the sleeve seat, the connecting piece is detachably connected to the sleeve seat, the membrane flap is placed in the membrane flap base, and the membrane flap base is detachably connected to the bottom of the connecting piece; the membrane flap includes a main body, a protrusion on the membrane flap, The lower protrusion of the membrane flap is provided with an opening, the opening divides the upper protrusion of the membrane flap into two diaphragms, a groove is arranged in the middle of the lower protrusion of the membrane flap, and a circular hole is arranged in the center of the groove. The valve of the angiography catheter anti-reflux device can make the fallopian tube pass smoothly, and wrap the fallopian tube to seal the joint, so as to prevent the contrast fluid from leaking back and forth and facilitate inspection.

It can be seen that the modern innovations on cardiac catheters have focused on the improvement of catheter materials and simple functions, and have not provided sufficient improvements on how to reduce the X-ray radiation during cardiac catheterization.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an extracorporeal cardiac catheter guide device, which can accurately locate the position where the cardiac catheter is inserted into the body outside the body, and almost eliminates X-ray radiation during the cardiac catheter placement operation, thereby ensuring the safety of patients and medical staff. healthy.

In order to solve the above problems, the present invention discloses an extracorporeal guiding cardiac catheter device, characterized in that: the cardiac catheter comprises a catheter body, a photometric section, a distance measurement section, a detection section and a top ball end;

The conduit body is an ordinary plastic conduit;

The photometric section and the detection section include: a positive line, including at least one linear conductor; a light-emitting layer, the light-emitting layer is an organic electroluminescent polymer, and the light-emitting layer covers the positive line; light-transmitting conductive layer, the light-transmitting conductive layer covers the light-emitting layer; negative electrode line, the negative electrode line includes at least one linear conductor and is in contact with the periphery of the light-transmitting conductive layer; transparent polymer layer, the transparent polymer layer The material layer is coated on the outside of the light-transmitting conductive layer with the negative electrode wire; and the transparent outer insulating layer is composed of the transparent outer insulating layer covering the outer part of the positive electrode wire, and the positive electrode wire and the negative electrode wire extend along the core conduit. to the end of the catheter and connected to the external power supply;

The detection section is a curved structure;

The ranging segment is a solid black opaque segment with a fixed length;

The top ball segment is a plastic hemispherical structure with self-lubricating properties and is provided with an opening in the center of the sphere.

Further, the electroluminescent material is a blue light material with an emission wavelength of 420-460 nm.

Further, the blue light electroluminescent material contains at least one of fluorene, spirofluorene, anthracene, carbazole, pyrene ring and aryl ketone.

Further, the fixed length of the distance measuring section is 0.1-4 cm.

Further, the length of the photometric section is 3 to 6 times that of the detection section, and the length of the detection section is 0.1 to 4 cm.

Further, the top ball segment is one of ultra-high molecular weight polyethylene, polytetrafluoroethylene or nylon.

Further, the positive line and the negative line of the photometric segment and the detection segment are connected to each other.

The invention also discloses a method for using an external guide catheter device, which is characterized by comprising the following steps:

(1) The patient lies still on the bed, and the surgical site is disinfected;

(2) After arterial puncture, a sheath is placed in the blood vessel;

(3) insert the cardiac catheter of the present invention from the sheath and connect to the power supply;

(4) Test the blue light intensity of a specific wavelength by a light measuring instrument, and the light intensity will obviously show an interval from bright to dark to bright according to the photometric section, the distance measurement section and the detection section;

(5) Take two points in the dark interval, when the light intensity of the two points is the same, and the distance between the two points is the length of the ranging section, the light intensity corresponding to the two points is the required brightness L;

(6) measuring the point where the blue light intensity is L in the detection section, the position of the point L is the position of the end of the top ball end;

(7) After determining the position, perform accurate measurement in other ways, and then carry out further medical treatment.

Further, wherein the power supply voltage is lower than 12V.

Further, the orientation of the ejector segment can be changed by axially rotating the catheter body.

The invention discloses an extracorporeal guiding cardiac catheter device, which creatively adopts the principle of luminescence to solve the problem of positioning the top of the catheter, and solves the problem in the prior art that X-rays must be used for a long time to determine the position of the catheter. The health of medical workers has brought great protection. And the surface light source based on organic electroluminescence is selectively used, which is different from the point luminescence of ordinary inorganic light-emitting diodes, and the complex chip structure of ordinary inorganic light-emitting diodes cannot be used in precision-structured cardiac catheters, and it is not like ordinary light-emitting diodes. The large amount of heat generated that way affects the patient's physical condition. After being inserted into the body, the light detector judges the light intensity and distance to accurately determine the actual light intensity at the junction of light and dark, and then the light intensity can be used to more accurately judge the position of the detection section and the junction of the top ball end.

The beneficial effects of the present invention are:

1. Positioning is performed by means of light emission, which is different from ordinary X-ray positioning, which will have adverse effects on the human body. Ordinary blue light irradiation positioning is harmless to the human body.

2. By knowing the specific length of the detection section, detect the position with the same light intensity at both ends of the specific length, judge the luminous intensity at the junction of light and dark, and then judge the position of the top ball end, without X-ray judgment.

3. The organic electroluminescent material can emit planar light, so that the entire catheter emits light, and there is no dead angle of light, which is more conducive to position judgment.

4. The organic electroluminescent material has high luminous intensity, high brightness, and less heat generation, so there is no need to worry about the damage to the human body caused by high temperature.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the overall structure schematic diagram of the present invention;

FIG. 2 is a schematic structural diagram of the photometric section and the detection section of the present invention.

FIG. 3 is an enlarged view of the layer structure of the photometric section and the detection section of the present invention.

In the figure, 1. catheter body 2. photometric section 3. ranging section 4. detection section 5. top ball end 6. opening 101. transparent outer insulating layer 102. positive wire 103. light-emitting layer 104. light-transmitting conductive layer 105. Negative wire 106. Transparent polymer layer

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiment one:

A kind of external guiding cardiac catheter device, it is characterized in that: described cardiac catheter comprises catheter body 1, photometric section 2, distance measurement section 3, detection section 4 and top ball end 5;

The conduit body is an ordinary plastic conduit;

The photometric section and the detection section include: a positive electrode line 102, including at least one linear conductor; a light-emitting layer 103, the light-emitting layer is an organic electroluminescent polymer, and the light-emitting layer covers the positive electrode line; A photoconductive layer 104, the light-transmitting conductive layer covers the light-emitting layer; a negative electrode wire 105, the negative electrode wire includes at least one linear conductor and is in contact with the periphery of the light-transmitting conductive layer; a transparent polymer layer 106 , the transparent polymer layer is wrapped outside the light-transmitting conductive layer with the negative electrode wire; and the transparent outer insulating layer 101, the transparent outer insulating layer wraps the outer part of the positive electrode wire and the like, the positive electrode wire and the The negative wire extends along the cardiac catheter to the end of the catheter and is connected with the external power supply;

The detection section is a curved structure;

The ranging segment is a solid black opaque segment with a fixed length;

The top ball segment is a plastic hemispherical structure with self-lubricating properties and is provided with an opening 6 in the center of the sphere.

The electroluminescent material is a blue light material with an emission wavelength of 420 nm. The blue electroluminescent material contains fluorene and spirofluorene structures. The fixed length of the distance measuring section is 1 cm. The length of the photometric section is 3 times that of the detection section, and the length of the detection section is 1 cm. The top ball segment is ultra-high molecular weight polyethylene. The positive and negative wires of the photometric segment and the detection segment are connected to each other.

The use method of the extracorporeal guiding cardiac catheterization device of the present embodiment includes the following steps:

(1) The patient lies still on the bed, and the surgical site is disinfected;

(2) After arterial puncture, a sheath is placed in the blood vessel;

(3) insert the cardiac catheter of the present invention from the sheath and connect to the power supply;

(4) Test the blue light intensity of a specific wavelength by a light measuring instrument, and the light intensity will obviously show an interval from bright to dark to bright according to the photometric section, the distance measurement section and the detection section;

(5) Take two points in the dark interval, when the light intensity of the two points is the same, and the distance between the two points is the length of the ranging section, the light intensity corresponding to the two points is the required brightness L1;

(6) The blue light intensity measured in the detection section is the point of L1, and the position of the point of L1 is the position of the end of the top ball end;

(7) After determining the position, perform accurate measurement in other ways, and then carry out further medical treatment.

Embodiment two:

A kind of external guiding cardiac catheter device, it is characterized in that: described cardiac catheter comprises catheter body 1, photometric section 2, distance measurement section 3, detection section 4 and top ball end 5;

The conduit body is an ordinary plastic conduit;

The photometric section and the detection section include: a positive electrode line 102, including at least one linear conductor; a light-emitting layer 103, the light-emitting layer is an organic electroluminescent polymer, and the light-emitting layer covers the positive electrode line; A photoconductive layer 104, the light-transmitting conductive layer covers the light-emitting layer; a negative electrode wire 105, the negative electrode wire includes at least one linear conductor and is in contact with the periphery of the light-transmitting conductive layer; a transparent polymer layer 106 , the transparent polymer layer is wrapped outside the light-transmitting conductive layer with the negative electrode wire; and the transparent outer insulating layer 101, the transparent outer insulating layer wraps the outer part of the positive electrode wire and the like, the positive electrode wire and the The negative wire extends along the cardiac catheter to the end of the catheter and is connected with the external power supply;

The detection section is a curved structure;

The ranging segment is a solid black opaque segment with a fixed length;

The top ball segment is a plastic hemispherical structure with self-lubricating properties and is provided with an opening 6 in the center of the sphere.

The electroluminescent material is a blue light material with an emission wavelength of 420 nm. The blue electroluminescent material contains fluorene and spirofluorene structures. The fixed length of the distance measuring section is 3 cm. The length of the photometric segment is 3 times that of the detection segment, and the length of the detection segment is 2 cm. The top ball segment is ultra-high molecular weight polyethylene. The positive and negative wires of the photometric segment and the detection segment are connected to each other.

The use method of the extracorporeal guiding cardiac catheterization device of the present embodiment includes the following steps:

(1) The patient lies still on the bed, and the surgical site is disinfected;

(2) After arterial puncture, a sheath is placed in the blood vessel;

(3) insert the cardiac catheter of the present invention from the sheath and connect to the power supply;

(4) Test the blue light intensity of a specific wavelength by a light measuring instrument, and the light intensity will obviously show an interval from bright to dark to bright according to the photometric section, the distance measurement section and the detection section;

(5) Take two points in the dark interval. When the light intensity of the two points is the same, and the distance between the two points is the length of the ranging section, the light intensity corresponding to the two points is the required brightness L2;

(6) measuring the blue light intensity in the detection section is the point of L2, the position of the point of L2 is the position of the end of the top ball end;

(7) After determining the position, perform accurate measurement in other ways, and then carry out further medical treatment.

Embodiment three:

A kind of external guiding cardiac catheter device, it is characterized in that: described cardiac catheter comprises catheter body 1, photometric section 2, distance measurement section 3, detection section 4 and top ball end 5;

The conduit body is an ordinary plastic conduit;

The photometric section and the detection section include: a positive electrode line 102, including at least one linear conductor; a light-emitting layer 103, the light-emitting layer is an organic electroluminescent polymer, and the light-emitting layer covers the positive electrode line; A photoconductive layer 104, the light-transmitting conductive layer covers the light-emitting layer; a negative electrode wire 105, the negative electrode wire includes at least one linear conductor and is in contact with the periphery of the light-transmitting conductive layer; a transparent polymer layer 106 , the transparent polymer layer is wrapped outside the light-transmitting conductive layer with the negative electrode wire; and the transparent outer insulating layer 101, the transparent outer insulating layer wraps the outer part of the positive electrode wire and the like, the positive electrode wire and the The negative wire extends along the cardiac catheter to the end of the catheter and is connected with the external power supply;

The detection section is a curved structure;

The ranging segment is a solid black opaque segment with a fixed length;

The top ball segment is a plastic hemispherical structure with self-lubricating properties and is provided with an opening 6 in the center of the sphere.

The electroluminescent material is a blue light material with an emission wavelength of 420 nm. The blue electroluminescent material contains fluorene and spirofluorene structures. The fixed length of the distance measuring section is 4 cm. The length of the photometric section is 3 times that of the detection section, and the length of the detection section is 4 cm. The top ball segment is ultra-high molecular weight polyethylene. The positive and negative wires of the photometric segment and the detection segment are connected to each other.

The use method of the extracorporeal guiding cardiac catheterization device of the present embodiment includes the following steps:

(1) The patient lies still on the bed, and the surgical site is disinfected;

(2) After arterial puncture, a sheath is placed in the blood vessel;

(3) insert the cardiac catheter of the present invention from the sheath and connect to the power supply;

(4) Test the blue light intensity of a specific wavelength by a light measuring instrument, and the light intensity will obviously show an interval from bright to dark to bright according to the photometric section, the distance measurement section and the detection section;

(5) Take two points in the dark interval. When the light intensity of the two points is the same, and the distance between the two points is the length of the ranging section, the light intensity corresponding to the two points is the required brightness L3;

(6) measuring the blue light intensity in the detection section is the point of L3, and the position of the point of L3 is the position of the end of the top ball end;

(7) After determining the position, perform accurate measurement in other ways, and then carry out further medical treatment.

Comparative Example 1

Common clinical use of cardiac catheterization device, positioning by X-ray.

In the animal experiment, twelve porcine cardiovascular systems were selected and randomly divided into four groups, each of which was divided into three groups. In the embodiment, only X-rays are used for precise positioning at the end, and the radiation dose monitoring machine is installed next to the cardiovascular system to detect the entire radioactivity measurement, as shown in the following figure:

Number of groups Irradiation dose group 1 Irradiation dose group 1 Irradiation dose group 1 Example 1 0.06mSv 0.07mSv 0.06mSv Embodiment 2 0.05mSv 0.06mSv 0.06mSv Embodiment 3 0.05mSv 0.06mSv 0.05mSv Comparative Example 1 0.25mSv 0.24mSv 0.26mSv

It can be seen from the above data that the cardiac catheter used in common clinical needs to receive a large amount of radiation exposure, while the cardiac catheter according to the present invention only needs a small amount of radiation exposure.

Claims (7)

1. an extracorporeal guiding cardiac catheter device, is characterized in that: described cardiac catheter comprises catheter body, photometric section, distance measurement section, detection section and head ball section; The conduit body is an ordinary plastic conduit; The photometric section and the detection section include: a positive line, including at least one linear conductor; a light-emitting layer, the light-emitting layer is an organic electroluminescent polymer, and the light-emitting layer covers the positive line; light-transmitting conductive layer, the light-transmitting conductive layer covers the light-emitting layer; negative electrode wire, the negative electrode wire includes at least one linear conductor and is in contact with the periphery of the light-transmitting conductive layer; transparent polymer layer, the transparent polymer layer The material layer is wrapped outside the light-transmitting conductive layer with the negative line; and a transparent outer insulating layer, the transparent outer insulating layer covers the outside of the positive electrode wire, and the positive electrode wire and the negative electrode wire extend along the heart catheter to the end of the catheter and are connected with the external power supply; The detection section is a curved structure; The ranging segment is a solid black opaque segment with a fixed length; The top ball segment is a plastic hemispherical structure with self-lubricating properties and is provided with an opening in the center of the sphere. 2 . The extracorporeal guiding catheter device according to claim 1 , wherein the light-emitting layer is a blue light material with an emission wavelength of 420-460 nm. 3 . 3 . The extracorporeal guiding catheter device according to claim 2 , wherein the blue light material contains at least one of fluorene, spirofluorene, anthracene, carbazole, pyrene ring and aryl ketone. 4 . 4 . The extracorporeal guide catheter device according to claim 1 , wherein the fixed length of the distance measuring section is 0.1-4 cm. 5 . 5 . The extracorporeal guide catheter device according to claim 1 , wherein the length of the photometric section is 3 to 6 times that of the detection section, and the length of the detection section is 0.1 to 4 cm. 6 . 6 . The extracorporeal guiding catheter device according to claim 1 , wherein the top ball segment is one of ultra-high molecular weight polyethylene, polytetrafluoroethylene or nylon. 7 . 7 . The extracorporeal guiding catheter device according to claim 1 , wherein the positive and negative wires of the photometric section are respectively connected to the positive and negative wires of the detection section. 8 .

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