CN215134313U

CN215134313U - Quick-exchange thrombolytic withdrawing system

Info

Publication number: CN215134313U
Application number: CN202121136405.XU
Authority: CN
Inventors: 丁明超; 邵长刚; 迟国庆; 王斌; 任洪成
Original assignee: Aerospace Center Hospital
Current assignee: Aerospace Center Hospital
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-14
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a rapid exchange thrombolysis bolt drawing system, which comprises a sheath core and an outer sheath, wherein the sheath core comprises a conical section, a tubular section and a tubular limiting section which are connected in sequence, the conical section, the tubular section and the tubular limiting section are communicated internally, a through hole is arranged on the conical surface of the conical section, the through hole is communicated with the interior of the conical section, a first wire guide channel is arranged on the conical surface of the conical section, and the first wire guide channel is arranged along the length direction of the conical surface of the conical section; the sheath is tubular, the sheath is sleeved outside the tubular section of the sheath core, the tubular limiting section is positioned outside the end part of the sheath, a second guide wire channel is arranged on the sheath and is arranged along the length direction of the sheath, the first guide wire channel and the second guide wire channel are separated by a preset distance, the sheath is connected with a three-way pipe, and one end of the three-way pipe is communicated with the inside of the sheath. The utility model discloses can be used for the suction of each arteriovenous thrombus of whole body and endovascular foreign matter etc, the suction process remains the seal wire in second seal wire passageway, needn't pass in and out the seal wire repeatedly, and suction efficiency is high.

Description

Quick-exchange thrombolytic withdrawing system

Technical Field

The utility model relates to the technical field of medical equipment, more particularly, the utility model relates to a quick exchange thrombolysis takes out bolt system.

Background

At present, what traditional thrombus suction adopted in the market is ordinary vascular sheath, and ordinary vascular sheath is the passageway of surgical equipment in the art, receives the restriction in operation and the effect when using the thrombus suction: 1. before suction, in order to prevent the guide wire from occupying the lumen space, the common vascular sheath reduces the thrombus suction efficiency, thrombus/foreign body suction is often required to be performed after the guide wire is withdrawn, if suction is required to be performed on a repeatedly diseased position, the guide wire needs to be reselected, the suction efficiency is influenced, and the operation risk and the complication incidence rate are increased. 2. The traditional vascular sheath is not special for suction, and suction of special parts such as blood vessels below the knee, blood vessels of the forearm and the like cannot be finished on the product model, so that the operation effect and the prognosis of a patient are influenced.

Therefore, a suction device having a high suction effect and capable of being used for sucking various arteriovenous thrombi, intravascular foreign matter, and the like of the whole body is required.

SUMMERY OF THE UTILITY MODEL

For solving current vascular sheath suction inefficiency, can't satisfy the suction scheduling problem of special part, the utility model discloses creatively provide a rapid exchange thrombolysis takes out system of bolt, this rapid exchange thrombolysis takes out system of bolt can be used for the suction of each whole body artery and vein thrombus and endovascular foreign matter etc, the guide wire does not pass through the inner chamber of epitheca, need not pass through the guide wire repeatedly during the suction, the front end of sheath core is equipped with the through-hole simultaneously, can pour into the medicine into to the blood vessel through the sheath core, carry out the thrombolysis, the partial effect of thrombolysis pipe has been compromise. The utility model discloses a bolt system is taken out to quick exchange thrombolysis can design into different length and diameter to the pathological change position of difference, satisfies different suction demands.

In order to achieve the technical purpose, the utility model discloses a rapid exchange thrombolysis draw bolt system, which comprises a sheath core and an outer sheath,

the sheath core comprises a conical section, a tubular section and a tubular limiting section which are sequentially connected, the interior of the conical section is hollow, the conical top of the conical section is closed, the interiors of the conical section, the tubular section and the tubular limiting section are communicated, a through hole is formed in the conical surface of the conical section and is communicated with the interior of the conical section, a first guide wire channel for a guide wire to pass through is arranged on the conical surface of the conical section, and the first guide wire channel is arranged along the length direction of the conical surface of the conical section;

the sheath is tubular, the sheath is sleeved outside the tubular section of the sheath core, the tubular limiting section is positioned outside the end part of the sheath, a second guide wire channel for a guide wire to pass through is arranged on the sheath, the second guide wire channel is arranged along the length direction of the sheath, the first guide wire channel and the second guide wire channel are separated by a preset distance, the sheath is connected with a three-way pipe, and one end of the three-way pipe is communicated with the inside of the sheath.

Further, the first guide wire channel is formed by a channel tube fixed on the conical surface of the conical section, and the end part, close to the conical bottom of the conical section, of the channel tube is away from the conical bottom of the conical section by a preset distance.

Further, the second guide wire channel is arranged on the tube body of the outer sheath.

Further, the second guidewire channel has a length less than a length of the outer sheath, and the guidewire passes through an end of the second guidewire channel outside the outer sheath.

Furthermore, the first end of the second guide wire channel is flush with the end part of the outer sheath close to the conical section or lower than the end part of the outer sheath close to the conical section, a blocking groove is formed in the tube body of the outer sheath, the blocking groove is communicated with the second end of the second guide wire channel, and the depth of the blocking groove is not lower than the diameter of the second guide wire channel.

Further, the length of the partition groove along the length direction of the outer sheath is 5 mm.

Furthermore, the number of the through holes is multiple, and the through holes are distributed along the circumference direction of the conical surface of the conical section or along the length direction of the conical surface of the conical section or spirally distributed along the conical surface of the conical section.

Further, the number of the through holes is 3.

The utility model has the advantages that:

the rapid exchange thrombolysis thrombus extraction system can be used for extracting various arteriovenous thrombi, foreign matters in blood vessels and the like of the whole body, the guide wire is retained in the second guide wire channel of the sheath, the guide wire does not pass through the inner cavity of the sheath, the guide wire does not need to be repeatedly fed and discharged during extraction, the extraction efficiency is high, complications can not be caused, and the operation risk is reduced; the front end of the sheath core is provided with a through hole, so that medicine can be injected into the blood vessel through the sheath core to dissolve thrombus, and partial functions of the thrombolytic catheter are considered. The utility model discloses a bolt system is taken out to quick exchange thrombolysis can design into different length and diameter to the pathological change position of difference, satisfies different suction demands.

Drawings

FIG. 1 is a schematic structural diagram of a rapid exchange thrombolytic thrombus extraction system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sheath core according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an outer sheath provided by an embodiment of the present invention;

fig. 4 is a schematic end face structure diagram of an outer sheath provided in an embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

1. a sheath core; 11. a tapered section; 12. a tubular section; 13. a tubular spacing section; 14. a through hole; 15. a first guidewire channel; 16. a passage tube;

2. an outer sheath; 21. a second guidewire channel; 22. a three-way pipe; 23. a blocking groove;

3. a guidewire.

Detailed Description

The quick-exchange thrombolysis draw bolt system provided by the invention is explained and explained in detail below with reference to the attached drawings.

As shown in fig. 1, the present embodiment specifically discloses a rapid exchange thrombolytic aspiration system, which comprises a sheath core 1 and an outer sheath 2, wherein the sheath core 1 is disposed in the outer sheath 2, and can be placed in a patient body after successful connection via a guide wire, and after the connection is delivered to a target position, the sheath core 1 is withdrawn, and aspiration treatment is performed through the outer sheath 2.

As shown in fig. 1 and 2, the sheath core 1 comprises a conical section 11, a tubular section 12 and a tubular limiting section 13 which are connected in sequence, the conical section 11 is hollow, the conical top of the conical section 11 is closed, the conical section 11, the tubular section 12 and the tubular limiting section 13 are communicated, a through hole 14 is formed in the conical surface of the conical section 11, the through hole 14 is communicated with the interior of the conical section 11, a medicine can be injected from the end part of the tubular limiting section 13 after the sheath core 1 is placed in a body, and the medicine is ejected from the through hole 14 on the conical section 11 after reaching the conical section 11 through the tubular section 12. The conical surface of the conical section 11 is provided with a first guide wire channel 15 for the guide wire 3 to pass through, and the first guide wire channel 15 is arranged along the length direction of the conical surface of the conical section 11, namely, the AB section in the figure.

In this embodiment, the first guide wire channel 15 is formed by a channel tube 16 fixed to the conical surface of the conical section 11, and the end of the channel tube 16 near the conical bottom of the conical section 11 is a predetermined distance from the conical bottom of the conical section 11, which is the bare area of the device, indicated as segment BC' in the figure. Preferably, the length of the segment BC' is 5 mm.

The number of the through holes 14 is plural, and the plural through holes 14 are arranged along the circumference direction of the conical surface of the conical section 11 or arranged along the length direction of the conical surface of the conical section 11 or arranged spirally along the conical surface of the conical section 11. The injected medicine can be sprayed out through the plurality of through holes 14 at the same time, and the medicine injection efficiency is improved. Preferably, the number of through holes 14 is 3.

As shown in fig. 1 and 3, the sheath 2 is tubular, the sheath 2 is sleeved outside the tubular section 12 of the sheath core 1, and the tubular limiting section 13 is located outside the end of the sheath 2, when the rapid exchange thrombolytic aspiration system of the present embodiment is assembled, the conical section 11 of the sheath core 1 firstly passes through the sheath 2, the sheath core 1 moves until the sheath 2 is sleeved on the tubular section 12, and the inner diameter of the tubular limiting section 13 is smaller than the outer diameter of the sheath 2, so as to limit, and prevent the sheath core 1 from slipping out of the sheath 2. The sheath 2 is provided with a second guide wire channel 21 for the guide wire 3 to pass through, the second guide wire channel 21 is arranged along the length direction of the sheath 2, the first guide wire channel 15 and the second guide wire channel 21 are separated by a preset distance, and after the sheath core 1 and the sheath 2 are assembled, the preset distance is a segment BC in fig. 1. The sheath 2 is connected with a three-way pipe 22, one end of the three-way pipe 22 is communicated with the inside of the sheath 2, the other two ends of the three-way pipe 22 can be respectively connected with an injector or an infusion apparatus, one end is used for sucking thrombus or foreign matters, and the other end is used for injecting liquid to wash the inner cavity of the sheath 2. The injector is preferably a screw-port injector, and the infusion set is preferably a screw-port infusion set, so that the connection and the disassembly are convenient.

In this embodiment, as shown in fig. 4, the second guide wire channel 21 is opened on the tube body of the sheath 2, and the outer part of the sheath 2 is smooth cylindrical, so as to avoid scratching the skin or organ in the body, causing complications, and increasing the suction efficiency.

As shown in fig. 1 and 3, the length of the second guide wire channel 21 is smaller than the length of the outer sheath 2, and the end of the guide wire 3 passing through the second guide wire channel 21 is positioned outside the outer sheath 2 for guiding. The first end of the second guide wire channel 21 is flush with the end of the sheath 2 close to the tapered section 11 or lower than the end of the sheath 2 close to the tapered section 11, so that the guide wire 3 can smoothly enter the second guide wire channel 21 after passing through the first guide wire channel 15. The tube body of the sheath 2 is provided with a partition groove 23, the partition groove 23 is communicated with the second end of the second guide wire channel 21, and the depth of the partition groove 23 is not less than the diameter of the second guide wire channel 21. The second guide wire channel 21 and the partition groove 23 are independent and not communicated with the inner cavity of the outer sheath 2. Preferably, the length of the blocking groove 23 in the length direction of the sheath 2 is 5 mm.

The utility model discloses a quick exchange thrombolysis takes out application method of bolt system as follows:

under the premise that the guide wire 3 is diseased in the operation, the rapid exchange thrombolysis embolectomy system is connected in vitro, the sheath 2 is sleeved on the tubular section 12 of the sheath core 1, the tail end of the guide wire 3 enters the first guide wire channel 15 from the port A in the figure, enters the first end, namely the port C, of the sheath 2 through the section BC' in the figure, passes through the second guide wire channel 21, and finally the guide wire 3 is led out from the second section, namely the port D, of the second guide wire channel 21, so that a track is established and sent to the diseased position; when thrombolytic drugs need to be injected after reaching lesion, the drugs can be injected through the tail end of the tubular limiting section 13 of the sheath core 1 and are ejected out through the through hole 14 of the conical section 11 at the front end of the sheath core 1; the head of the thrombus-drawing front guide wire 3 retreats from the first guide wire channel, namely the AB section, to the C port and enters the second guide wire channel 21, wherein the BC section is a device bare area, the guide wire 3 retreats to the C port and then forwards conveys the outer sheath 2, so that the guide wire 3 can be prevented from entering the B port and entering a blood vessel or other lumens to form guidance, and the guide wire 3 is prevented from retreating together with the sheath and needing repeated operation. The guide wire 3 can withdraw the sheath core 1 after entering the second guide wire channel 21, a 50ml injector can suck under negative pressure through the three-way pipe 22, thrombus or foreign matters around the sheath 2 are pumped into the sheath 2 and then are withdrawn out of the body along with the sheath, and the liquid is injected into the sheath 2 from the other end of the three-way pipe 22 by the in-vitro injector to flush the inner cavity of the sheath 2 and push out the foreign matters. In the internal suction process, the guide wire 3 is reserved in the second guide wire channel 21, the inner cavity of the sheath 2 is not influenced, and the safety of the operation is ensured.

The utility model discloses a quick exchange thrombolysis pump system utilizes epitheca 2 to last powerful negative pressure effect to take out the foreign matter, and suction in-process seal wire 3 keeps in the second seal wire channel 21 of epitheca 2, avoids seal wire 3 to get into repeatedly, reduces operation risk and complication. The utility model discloses a bolt system is taken out to quick exchange thrombolysis can design into different diameters and different length according to the pathological change position of difference, and the flexibility is strong. The material of the sheath 2 is selected to be more flexible than the traditional sheath, but the sheath cannot be easily deformed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and simple improvements made in the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid exchange thrombolysis embolectomy system is characterized by comprising a sheath core (1) and a sheath (2),

the sheath core (1) comprises a conical section (11), a tubular section (12) and a tubular limiting section (13) which are sequentially connected, the interior of the conical section (11) is hollow, the conical top of the conical section (11) is closed, the interiors of the conical section (11), the tubular section (12) and the tubular limiting section (13) are communicated, a through hole (14) is formed in the conical surface of the conical section (11), the through hole (14) is communicated with the interior of the conical section (11), a first guide wire channel (15) for a guide wire (3) to pass through is arranged on the conical surface of the conical section (11), and the first guide wire channel (15) is arranged along the length direction of the conical surface of the conical section (11);

the sheath (2) is tubular, the sheath (2) is sleeved outside the tubular section (12) of the sheath core (1), the tubular limiting section (13) is located outside the end portion of the sheath (2), a second guide wire channel (21) for a guide wire (3) to penetrate through is arranged on the sheath (2), the second guide wire channel (21) is arranged along the length direction of the sheath (2), the first guide wire channel (15) and the second guide wire channel (21) are separated by a preset distance, the sheath (2) is connected with a three-way pipe (22), and one end of the three-way pipe (22) is communicated with the inside of the sheath (2).

2. The rapid exchange thrombolytic embolectomy system of claim 1, wherein the first guidewire channel (15) is formed by a channel tube (16) fixed to the conical surface of the conical section (11), and the end of the channel tube (16) near the conical bottom of the conical section (11) is at a predetermined distance from the conical bottom of the conical section (11).

3. The rapid exchange thrombolytic aspiration system of claim 1 or 2, wherein the second guidewire channel (21) opens onto a tube of the outer sheath (2).

4. The rapid exchange thrombolytic aspiration system of claim 3, wherein the second guidewire channel (21) has a length less than the length of the outer sheath (2), and the end of the guidewire (3) passing through the second guidewire channel (21) is located outside the outer sheath (2).

5. The rapid exchange thrombolytic thrombus removal system of claim 4, wherein a first end of the second guide wire channel (21) is flush with an end of the sheath (2) close to the tapered section (11) or lower than an end of the sheath (2) close to the tapered section (11), a blocking groove (23) is formed in a tube body of the sheath (2), the blocking groove (23) is communicated with a second end of the second guide wire channel (21), and the depth of the blocking groove (23) is not less than the diameter of the second guide wire channel (21).

6. The rapid exchange thrombolytic aspiration system of claim 5, wherein the length of the partition groove (23) along the length of the outer sheath (2) is 5 mm.

7. The rapid exchange thrombolysis system according to claim 1, wherein the number of the through holes (14) is plural, and the plural through holes (14) are arranged along the circumference direction of the conical surface of the conical section (11) or arranged along the length direction of the conical surface of the conical section (11) or arranged spirally along the conical surface of the conical section (11).

8. The rapid exchange thrombolysis system of claim 7, wherein the number of through-holes (14) is 3.