CN211300123U - Dilator for puncturing and expanding incision of apex cordis - Google Patents
Dilator for puncturing and expanding incision of apex cordis Download PDFInfo
- Publication number
- CN211300123U CN211300123U CN201921785500.5U CN201921785500U CN211300123U CN 211300123 U CN211300123 U CN 211300123U CN 201921785500 U CN201921785500 U CN 201921785500U CN 211300123 U CN211300123 U CN 211300123U
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- Prior art keywords
- dilator
- puncture
- head end
- incision
- guide wire
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- 239000012780 transparent material Substances 0.000 claims abstract description 5
- 230000000916 dilatatory effect Effects 0.000 claims abstract description 4
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 230000010339 dilation Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000001765 aortic valve Anatomy 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides an expander for apical puncture expansion incision, which comprises a tubular expander body, wherein a tubular wire guide channel is fixedly arranged in the expander body and penetrates through the whole expander body; the front end of the dilator body is provided with a dilator head end used for dilating a puncture incision, the middle and rear parts are used as handles, and the channel port of the guide wire channel, which is positioned at one side of the dilator head end, is positioned at the end head of the dilator head end; the dilator body and the guide wire channel are made of transparent materials. The utility model discloses simple structure, easy to operate, whole operation can be surveyed when can realizing the puncture of apex of the heart to set up corresponding structure and instructed whether the operation succeeds, greatly reduced the operation degree of difficulty, reduced the operation risk.
Description
Technical Field
The utility model relates to an operation auxiliary instrument field specifically is an expander that is used for apex of heart puncture expansion incision.
Background
Apical puncture is an important procedure for performing some transapical cardiac procedures. For example, the transapical aortic valve replacement which is applied more at present can be carried out under the conditions that the heart does not jump continuously and the extracorporeal circulation is not needed to be established, has small wound and quick recovery, and is particularly suitable for the old and the weak patients. When such surgery is performed. First, a puncture is made through the apex of the heart, and then the valve is implanted into the heart through the puncture path. The distance of implantation is only 20 cm-30 cm from the apex of the heart, the distance is greatly shortened, and the operation is more convenient and accurate.
However, when the valve is implanted through the apical path, the puncture incision needs to be expanded after the puncture so that the valve with a large diameter can smoothly pass through the puncture path. At present, a medical expansion instrument is generally adopted, for example, a sheath tube is expanded at the tail of puncture to perform expansion operation, a doctor is difficult to observe the expansion process, and once problems occur during heart operation, major bleeding and other life-threatening problems are caused, so that the risk is high. At present, the operation is extremely dependent on the experience and level of doctors, and medical resources are in tension.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one technical problem that above-mentioned prior art exists, the utility model provides a be used for apex puncture to expand notched expander, simple structure, easy to operate, whole operation can be surveyd when can realizing apex puncture to set up corresponding structure and instructed whether the operation succeeds, greatly reduced the operation degree of difficulty, reduced the operation risk.
The utility model provides an expander for apical puncture expansion incision, which comprises a tubular expander body, wherein a tubular wire guide channel is fixedly arranged in the expander body and penetrates through the whole expander body; the front end of the dilator body is provided with a dilator head end used for dilating a puncture incision, the middle rear part is used as a handle, and the channel port of the guide wire channel, which is positioned at one side of the dilator head end, is positioned at the end head of the dilator head end; the dilator body and the guide wire channel are made of transparent materials.
The utility model has the advantages that: by arranging the transparent dilator body and the specific cylindrical structure, the operation process can be observed in the whole process of incision dilation, and a doctor can operate in the whole process under the condition of observation, so that the operation difficulty is greatly reduced, and the operation risk is reduced; secondly, the utility model discloses set up the tubulose seal wire passageway that runs through the expander body, can be through observing whether blood can flow along the seal wire passageway, judge whether puncture and expansion operation succeed, for doctor's operation provides fabulous reference, further reduce the operation degree of difficulty, reduce the operation risk.
Furthermore, the head end of the dilator adopts a conical shape, and the diameter of the dilator is uniformly increased from small to large.
The beneficial effect of adopting the further scheme is that: can evenly expand the incision and further reduce the operation risk.
Further, the dilator body and the guide wire channel are made of transparent POM materials.
The beneficial effect of adopting the further scheme is that: adopt transparent POM material can guarantee the bulk strength and the toughness of expander when having observation function concurrently, avoid the expansion in-process expander to receive overstock and warp.
Further, the exterior of the dilator head end is coated with a lubricating layer.
The beneficial effect of adopting the further scheme is that: after the lubricating layer is coated, the resistance when the incision is punctured and expanded can be greatly reduced.
Furthermore, the outer side of the handle is provided with anti-skid grains.
Furthermore, the dilator body is provided with a protection assembly for preventing the puncture from being too deep at the tail end of the dilator head end.
Preferably, the protection component is a boss arranged on the dilator body and positioned at the tail end of the dilator head end.
The beneficial effect of adopting the further scheme is that: can prevent the puncture of the puncture outfit from being too deep and damaging normal tissues.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an embodiment provided by the present invention;
FIG. 2 is a schematic structural view of an embodiment of the dilator head of the present invention;
in the figure:
1. a dilator body; 2. a handle; 3. an expander head end; 4. a guidewire channel; 5. a boss; 6. anti-skid lines; 7. and a lubricating layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the dilator for apical puncture to dilate an incision comprises a cylindrical dilator body 1. A tubular guide wire channel 4 is fixedly arranged in the dilator body 1, and the guide wire channel 4 penetrates through the whole dilator body 1. The front end of the dilator body 1 is provided with a dilator head end 3 for dilating a puncture incision, the middle part and the rear part are used as handles 2, and a channel port of the guide wire channel 4, which is positioned at one side of the dilator head end 3, is positioned at the end of the dilator head end 3. The dilator body 1 and the guide wire channel 4 are made of transparent materials.
The structure and shape of the dilator body 1 can be various forms, and can be a cylinder or an elliptic cylinder. The seal wire channel 4 is used for wearing the seal wire, guides the doctor to operate, also can the drainage blood simultaneously, for whether the puncture successfully provides the reference, its structure and shape can be multiform, as long as do not have the long tube that the wide-angle was bent and can both satisfy the utility model discloses a needs. For the convenience of holding by a doctor and avoiding the sliding of the instrument in the operation process, the outer side of the handle 2 can be provided with anti-skidding lines 6. The anti-skid lines 6 can adopt any form, and can be in a thread shape or a line combined by multiple ring shapes.
On the basis of the technical scheme, the utility model discloses an expander head end 3 adopts the toper shape, and the diameter is by little even grow. The structural design can ensure the smoothness of operation when the incision is expanded, and can also reduce the tearing degree of the incision as much as possible and improve the operation safety. The smoother the curvature of the taper, the lower the risk of tearing.
On the basis of the technical scheme, the dilator body 1 and the guide wire channel 4 are made of transparent POM materials. The transparent POM material can ensure the overall strength and toughness of the expander, and avoid the deformation or fracture of the expander caused by overstock in the expansion process.
As shown in fig. 2, the exterior of the dilator tip 3 is coated with a lubricating layer 7. Facilitating a reduction in the resistance to operation. The lubricating layer 7 can be made of plastic or other material with high lubricating degree.
As shown in fig. 1, a protective assembly for preventing the puncture from being too deep is arranged on the dilator body 1 at the end of the dilator head end 3.
Preferably, the protection component is a boss 5 arranged on the dilator body 1 at the end of the dilator head end 3.
Adopt above-mentioned structural design to set up the protection subassembly in order to further reduce the operation risk, can prevent that the puncture ware from puncturing too deeply, injuring normal tissue.
The utility model discloses can adopt whole injection moulding's mode to produce, also can mould plastics out the casing with expander body 1, then mould plastics and make seal wire channel 4, insert seal wire channel 4 in expander body 1, the both ends are sealed fixed with ultrasonic bonding.
The utility model discloses a use method as follows:
the puncture needle is firstly used for puncturing the apex of the heart, then the guide wire is inserted along the puncture needle, and the puncture needle is withdrawn. Then will the utility model discloses an expander inserts along the seal wire, along with head end diameter size change, can slowly expand the incision, and it is the same with the expander settlement diameter size until the incision size. Due to the adoption of the transparent material, a doctor can observe the whole operation process, and if the doctor sees that the blood flows out along the guide wire channel 4, the puncture success is indicated. The utility model discloses a diameter of expander head end 3 final expansion diameter and expander body 1 can be set for as required according to specific puncture expansion usage.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The dilator for expanding the incision by puncture of the apex of the heart is characterized by comprising a cylindrical dilator body (1), wherein a tubular guide wire channel (4) is fixedly arranged in the dilator body (1), and the guide wire channel (4) penetrates through the whole dilator body (1); the front end of the dilator body (1) is provided with a dilator head end (3) for dilating a puncture incision, the middle part and the rear part are used as handles (2), and a channel port of the guide wire channel (4) on one side of the dilator head end (3) is positioned at the end of the dilator head end (3); the dilator body (1) and the guide wire channel (4) are made of transparent materials.
2. A dilator for apical puncture dilation of an incision according to claim 1, wherein the dilator head end (3) is tapered with a diameter that increases from small to large.
3. The dilator for apical puncture dilation incision according to claim 1, wherein the dilator body (1) and the guide wire channel (4) are made of transparent POM material.
4. A dilator for apical puncture dilation of incisions according to claim 1, characterized in that the dilator head end (3) is externally coated with a lubricating layer (7).
5. A dilator for apical puncture to dilate an incision according to claim 1, wherein the handle (2) is provided with anti-slip threads (6) on the outside.
6. The dilator for apical puncture dilation incision according to claim 1, wherein a protection assembly preventing too deep puncture is provided on the dilator body (1) at the end of the dilator head end (3).
7. A dilator for apical puncture dilation of an incision according to claim 6, wherein the protection assembly is a boss (5) provided on the dilator body (1) at the end of the dilator head end (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785500.5U CN211300123U (en) | 2019-10-22 | 2019-10-22 | Dilator for puncturing and expanding incision of apex cordis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785500.5U CN211300123U (en) | 2019-10-22 | 2019-10-22 | Dilator for puncturing and expanding incision of apex cordis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211300123U true CN211300123U (en) | 2020-08-21 |
Family
ID=72051483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921785500.5U Active CN211300123U (en) | 2019-10-22 | 2019-10-22 | Dilator for puncturing and expanding incision of apex cordis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211300123U (en) |
-
2019
- 2019-10-22 CN CN201921785500.5U patent/CN211300123U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201104 Address after: 430030 No. 1095 Jiefang Avenue, Wuhan, Hubei, Hankou Patentee after: Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science & Technology Address before: 430000 No.1, floor 3, building 13, block B, No.818, Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan weixintan Medical Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210331 Address after: 430074 No.1, 3rd floor, building 13, zone B, 818 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan weixintan Medical Technology Co.,Ltd. Address before: 430030 No. 1095 Jiefang Avenue, Wuhan, Hubei, Hankou Patentee before: Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science & Technology |
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| TR01 | Transfer of patent right |