CN211325440U - Electric and manual switching structure of myocardial tissue puncture needle in heart chamber - Google Patents
Electric and manual switching structure of myocardial tissue puncture needle in heart chamber Download PDFInfo
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- CN211325440U CN211325440U CN201921784298.4U CN201921784298U CN211325440U CN 211325440 U CN211325440 U CN 211325440U CN 201921784298 U CN201921784298 U CN 201921784298U CN 211325440 U CN211325440 U CN 211325440U
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Abstract
The utility model provides an electric and manual switching structure of a myocardial tissue puncture needle in a heart chamber, which comprises a puncture needle and a speed reducing motor, wherein the electric and manual switching structure of the puncture needle comprises a screw rod nut, a screw rod and a clutch component; the lead screw is connected with the output end of the speed reducing motor, the lead screw nut is sleeved on the lead screw, and the electric and manual switching structure of the puncture needle is also provided with a guide assembly which is matched and connected with the lead screw nut and is used for enabling the lead screw nut to only do linear motion along the lead screw; the clutch assembly is connected with the puncture needle and the lead screw nut, and a guide limiting part which is used for penetrating the puncture needle and limiting the puncture needle to only do linear motion is fixedly arranged on the machine body of the electric and manual switching structure of the puncture needle. The utility model discloses simple structure, easy to operate can realize that the manual and electronic free switching of cardiac muscle puncture has greatly reduced the operation risk.
Description
Technical Field
The utility model relates to an operation auxiliary instrument field specifically is an electronic and manual switching structure of heart intracavity myocardial tissue pjncture needle.
Background
Hypertrophic obstructive cardiomyopathy is a myocardial morphological abnormality disease, the incidence rate of the disease in people is about 0.02-0.2%, namely about 500 people suffer from the disease, and the pathogenesis may be related to gene mutation, myocardial calcium kinetic abnormality and catecholamine substance secretion increase. The pathological mechanism of the disease is represented by asymmetric ventricular septal hypertrophy, hypertrophic cardiac muscle protrudes towards the left ventricle to reduce the volume of the left ventricle, the pressure step of the left ventricular outflow tract is obviously increased, the mitral valve moves forwards in the systolic period (SAM sign) and further aggravates the obstruction of the left ventricular outflow tract, and then the left ventricle is blocked in blood discharge, and the cardiac function is progressively deteriorated. The clinical symptoms of the disease mainly include chest pain, dyspnea, syncope and other heart failure symptoms, the untreated annual death rate is 1.7-4%, the sudden death is mostly caused by malignant arrhythmia, and the natural prognosis is poor.
The current treatment methods for hypertrophic obstructive cardiomyopathy mainly comprise drug treatment, double-cavity pacing treatment, alcohol ablation through coronary ventricular septum and myocardial excision through open ventricular septum (Morrow and modified Morrow). Compartmental cardiomyopathy is currently the best treatment for hypertrophic obstructive cardiomyopathy. However, the traditional myocardial resection has large trauma and high difficulty, and only a few heart centers can be developed in China at present.
The invention relates to an electric plate type myocardial cutter which can perform myocardial excision through the apex of the heart under the state of no heartbeat, but the electric plate type myocardial cutter has a great risk, and the electric plate type myocardial cutter is fatal to a patient once an electric control system fails in the process of performing a cardiac operation.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one technical problem that above-mentioned prior art exists, the utility model provides an electronic and manual switching structure of heart intracavity myocardial tissue pjncture needle, simple structure, easy to operate can realize the manual and electronic free switching of myocardial puncture, has greatly reduced the operation risk.
The utility model provides an electric and manual switching structure of a myocardial tissue puncture needle in a heart chamber, which comprises a puncture needle and a speed reducing motor, wherein the electric and manual switching structure of the puncture needle comprises a screw rod nut, a screw rod and a clutch component; the lead screw is connected with the output end of the speed reducing motor, the lead screw nut is sleeved on the lead screw, and the electric and manual switching structure of the puncture needle is also provided with a guide assembly which is matched and connected with the lead screw nut and is used for enabling the lead screw nut to only do linear motion along the lead screw; the clutch assembly is connected with the puncture needle and the lead screw nut, and a guide limiting part which is used for penetrating the puncture needle and limiting the puncture needle to only do linear motion is fixedly arranged on the machine body of the electric and manual switching structure of the puncture needle.
The utility model has the advantages that: through setting up clutch assembly to and a series of cooperation structures, can let and realize random connection and disconnection between pjncture needle and the gear motor, make the precession of pjncture needle freely switch over under manual and electronic mode, when the puncture that advances needs, can adopt electronic mode, reduce doctor's intensity of labour, when electronic parts became invalid or special case appears, can switch over to manual mode, by doctor according to special case manual operation, greatly reduced the operation risk.
Preferably, the guide assembly is a guide rod, the guide rod is fixedly installed in a machine body of the puncture needle electric and manual switching structure, and the lead screw nut is arranged on the guide rod in a penetrating mode.
Preferably, the screw rod is connected with the speed reducing motor through a coupler.
Preferably, the guide limiting part is a guide block fixedly mounted on the body of the puncture needle switching structure between electric and manual operation, a guide hole is formed in the guide block, and the puncture needle is arranged in the guide hole in a penetrating manner.
Further, the clutch component is a clamping type clutch.
Preferably, the clutch assembly comprises a first guide piece and a second guide piece which can be clamped and separated with the first guide piece, the first guide piece is fixedly connected with the puncture needle, and the second guide piece is fixedly connected with the lead screw nut.
Preferably, a clamping groove is formed in the second guide piece, and a movable link piece capable of being in clamping fit with the clamping groove is movably connected to the first guide piece.
Preferably, the active link is hinged to the first guide.
The beneficial effect of adopting the further scheme is that: can be convenient for operate, more do benefit to safety.
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 a clutch assembly according to the present invention;
in the figure:
1. puncturing needle; 2. a guide block; 3. a first guide member; 3a, a movable connecting piece; 4. a second guide member; 5. a feed screw nut; 6. a screw rod; 7. a coupling; 8. a reduction motor; 9. a guide rod.
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 figure 1, the switching structure of the myocardial tissue puncture needle in the heart chamber between the electric operation and the manual operation comprises a puncture needle 1 and a speed reducing motor 8. The electric and manual switching structure of the puncture needle further comprises a screw rod nut 5, a screw rod 6 and a clutch assembly. The screw rod 6 is connected with the output end of the speed reducing motor 8, and the screw rod nut 5 is sleeved on the screw rod 6. The electric and manual switching structure of the puncture needle is also provided with a guide assembly which is matched and connected with the screw rod nut 5 and is used for enabling the screw rod nut 5 to only do linear motion along the screw rod 6. The clutch assembly is connected with the puncture needle 1 and the lead screw nut 5, and a guide limiting part which is used for penetrating the puncture needle 1 and limiting the puncture needle 1 to only do linear motion is fixedly arranged on a machine body of the puncture needle electric and manual switching structure. The guide limiting part is arranged, the puncture needle 1 can only run along a straight line, the clutch assembly is arranged to connect the puncture needle 1 and the screw nut 5, and the electric and manual switching of the puncture needle can be realized. When the clutch assembly is combined, the puncture needle 1 is connected with the screw rod nut 5, and the electric mode is adopted; when the clutch component is disconnected, the puncture needle 1 is disconnected with the screw nut 5, and the manual mode is adopted.
The guide assembly is a guide and limit assembly of the feed screw nut 5, and the structure and the shape of the guide assembly can be various forms, such as a polished rod, a guide groove or a guide rail. The guide limiting part is a guide and limiting component of the puncture needle 1, and the structure and the shape of the guide limiting part can be in various forms. The clutch component can be in any structure as long as the connection and disconnection of the puncture needle 1 and the screw nut 5 can be realized.
On the basis of the technical scheme, the utility model discloses a direction subassembly is guide bar 9, guide bar 9 fixed mounting is in the electronic and manual organism that switches the structure of pjncture needle, screw-nut 5 wears to establish on guide bar 9. The guide rod 9 is a polished rod and is matched with the screw rod, the structure can enable the operation to be smoother, the shaking risk of the puncture needle 1 during electric operation is reduced, and the operation safety is improved.
On the basis of the technical scheme, the screw rod 6 is preferably connected with the speed reducing motor 8 through a coupler 7. The smoothness of operation can also be improved.
On the basis of the technical scheme, the guide limiting part is a guide block 2 fixedly installed on a machine body of the puncture needle electric and manual switching structure, a guide hole is formed in the guide block 2, and the puncture needle 1 penetrates through the guide hole. Such a construction is the simplest and most reliable.
As shown in fig. 2, the clutch assembly of the present invention is preferably a snap clutch.
Preferably, the clutch assembly comprises a first guide part 3 and a second guide part 4 which can be clamped and separated with the first guide part 3, the first guide part 3 is fixedly connected with the puncture needle 1, and the second guide part 4 is fixedly connected with the lead screw nut.
Preferably, a clamping groove is formed in the second guide part 4, and a movable link part 3a capable of being in clamping fit with the clamping groove is movably connected to the first guide part 3.
Preferably, the active link 3a is hinged with the first guide 3.
When the movable connecting piece is used, the movable connecting piece 3a is pulled to be screwed into a clamping groove formed in the second guide piece 4, and the first guide piece 3 and the second guide piece 4 are clamped together to realize combination. And the movable link 3a is pulled to be rotated to leave the clamping groove formed on the second guide part 4, and then the first guide part 3 and the second guide part 4 are disconnected, so that disconnection is realized. The utility model discloses just through the combination and the disconnection of above-mentioned clutch assembly, realize manual and electronic freely switching.
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 (8)
1. An electric and manual switching structure of a myocardial tissue puncture needle in a heart cavity comprises a puncture needle (1) and a speed reducing motor (8), and is characterized in that the electric and manual switching structure of the puncture needle comprises a screw nut (5), a screw rod (6) and a clutch assembly; the lead screw (6) is connected with the output end of the speed reducing motor (8), the lead screw nut (5) is sleeved on the lead screw (6), and the electric and manual switching structure of the puncture needle is further provided with a guide assembly which is matched and connected with the lead screw nut (5) and is used for enabling the lead screw nut (5) to only move linearly along the lead screw (6); the clutch assembly is connected with the puncture needle (1) and the lead screw nut (5), and a guide limiting part which is used for penetrating the puncture needle (1) and limiting the puncture needle (1) to only do linear motion is fixedly arranged on the machine body of the electric and manual switching structure of the puncture needle.
2. The structure for switching the electrical and manual operation of the myocardial tissue puncture needle in the heart chamber according to claim 1, characterized in that the guide component is a guide rod (9), the guide rod (9) is fixedly arranged in a body of the structure for switching the electrical and manual operation of the puncture needle, and the lead screw nut (5) is arranged on the guide rod (9) in a penetrating manner.
3. The structure for switching the myocardial tissue puncture needle in the heart chamber between the electric operation and the manual operation according to claim 1, characterized in that the lead screw (6) is connected with the speed reducing motor (8) through a coupling (7).
4. The structure for switching between electric and manual operation of a myocardial tissue puncture needle in a cardiac chamber according to claim 1, wherein the guide limiting part is a guide block (2) fixedly installed on the body of the structure for switching between electric and manual operation of the puncture needle, the guide block is provided with a guide hole, and the puncture needle (1) is inserted into the guide hole.
5. The structure for switching between electric and manual operation of a myocardial tissue puncture needle in a cardiac chamber according to claim 1, wherein the clutch assembly is a snap-on clutch.
6. The structure for switching the myocardial tissue puncture needle in the heart chamber between the electric operation and the manual operation according to claim 5, characterized in that the clutch assembly comprises a first guide member (3) and a second guide member (4) which can be engaged with and disengaged from the first guide member (3), the first guide member (3) is fixedly connected with the puncture needle (1), and the second guide member (4) is fixedly connected with the lead screw nut (5).
7. The structure for switching the electrical operation and the manual operation of the myocardial tissue puncture needle in the heart chamber according to claim 6, wherein the second guide member (4) is provided with a slot, and the first guide member (3) is movably connected with a movable link member (3a) capable of being in clamping fit with the slot.
8. An arrangement for switching between electrical and manual operation of a myocardial tissue puncture needle within a cardiac chamber, according to claim 7, characterized in that the movable link (3a) is hinged to the first guide (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784298.4U CN211325440U (en) | 2019-10-22 | 2019-10-22 | Electric and manual switching structure of myocardial tissue puncture needle in heart chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784298.4U CN211325440U (en) | 2019-10-22 | 2019-10-22 | Electric and manual switching structure of myocardial tissue puncture needle in heart chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325440U true CN211325440U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921784298.4U Active CN211325440U (en) | 2019-10-22 | 2019-10-22 | Electric and manual switching structure of myocardial tissue puncture needle in heart chamber |
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| CN (1) | CN211325440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662641A (en) * | 2021-10-25 | 2021-11-19 | 北京微刀医疗科技有限公司 | CT guide puncture needle conveying device |
-
2019
- 2019-10-22 CN CN201921784298.4U patent/CN211325440U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662641A (en) * | 2021-10-25 | 2021-11-19 | 北京微刀医疗科技有限公司 | CT guide puncture needle conveying device |
| CN113662641B (en) * | 2021-10-25 | 2022-02-22 | 北京微刀医疗科技有限公司 | CT guide puncture needle conveying device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201112 Address after: 430030 No. 1095 Jiefang Avenue, Wuhan, Hubei, Hankou Patentee after: Huazhong University of Science Tongji Hospital, Tongji Medical College 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: 20210408 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: Huazhong University of Science Tongji Hospital, Tongji Medical College |