CN115105168A - Myocardial cutter - Google Patents
Myocardial cutter Download PDFInfo
- Publication number
- CN115105168A CN115105168A CN202210864433.6A CN202210864433A CN115105168A CN 115105168 A CN115105168 A CN 115105168A CN 202210864433 A CN202210864433 A CN 202210864433A CN 115105168 A CN115105168 A CN 115105168A
- Authority
- CN
- China
- Prior art keywords
- cutting
- myocardial
- cutter
- sleeve
- window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002107 myocardial effect Effects 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 7
- 210000004165 myocardium Anatomy 0.000 abstract description 10
- 210000001519 tissue Anatomy 0.000 abstract description 10
- 208000005189 Embolism Diseases 0.000 abstract description 2
- 210000001367 artery Anatomy 0.000 abstract description 2
- 238000007675 cardiac surgery Methods 0.000 abstract description 2
- 230000001969 hypertrophic effect Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 206010020871 hypertrophic cardiomyopathy Diseases 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
Abstract
The invention discloses a myocardial cutter, which relates to the technical field of medical instruments for cardiac surgery, and comprises a sleeve, a cutting tube, a shell, a rotary driving mechanism and a feed mechanism; the end part of one end of the sleeve is a spherical seal, and the other end of the sleeve is connected with the shell; a window is arranged on the side wall of one end of the sleeve; one end of the cutting pipe is slidably inserted into the sleeve and extends to the window; the other end of the pipe cutting machine is in transmission connection with a rotary driving mechanism; the feed mechanism is used for controlling the relative position of one end of the cutting pipe and the window; the rotary driving mechanism and the feed mechanism are both positioned in the shell. The myocardial cutter can accurately cut the cardiac muscle of the hypertrophic part, the cardiac muscle of a non-target area can not be injured by mistake, an operator does not need to judge the amount of the cardiac muscle to be cut by depending on experience, and the safety of the operation is improved; and can finally communicate negative pressure mechanism through cutting the pipe and take out the myocardial tissue of cutting, prevent that the myocardial tissue of cutting from droing and leading to peripheral artery embolism.
Description
Technical Field
The invention relates to the technical field of medical instruments for cardiac surgery, in particular to a myocardial cutter.
Background
The myocardial cutter mainly used hypertrophic cardiomyopathy operation process is very high to the excision of myocardium, often require very high to cut myocardial size in the operation process, the excision volume is not enough then influences the operation effect, the excision is too much probably to cause the heart damaged, and measure the myocardium that cuts off in vitro, both have serious hysteresis quality, seriously influence the operation speed again, it is unfavorable to patient's health, consequently, how to judge the size of being cut accurately in the cutting process, be the technical problem who urgently needs to be solved.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a myocardial cutter capable of controlling the cutting size.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a myocardial cutter, which comprises a sleeve, a cutting tube, a shell, a rotary driving mechanism and a feed mechanism, wherein the sleeve is arranged on the shell; the end part of one end of the sleeve is a spherical seal, and the other end of the sleeve is connected with the shell; a window is arranged on the side wall of one end of the sleeve; one end of the cutting pipe extends into the sleeve in a sliding mode and extends to the window; the other end of the pipe cutting machine is in transmission connection with the rotary driving mechanism; the feed mechanism is used for controlling the relative position of one end of the cutting pipe and the window; the rotary driving mechanism and the feed mechanism are both positioned in the shell.
Optionally, the rotary driving mechanism includes a motor, a long gear and a moving gear; the motor is in transmission connection with the long gear, and the long gear is meshed with the moving gear; the moving gear is coaxially connected with the cutting pipe; the moving gear is connected with the feed mechanism.
Optionally, the feed mechanism comprises a handle, a feed frame and a steel ball; the bottom of the tool feeding frame is of an Contraband-shaped structure with a downward opening, and the side walls on two sides in the Contraband-shaped structure are respectively provided with the steel ball; rolling grooves are formed in two sides of the moving gear, and the steel balls are arranged in the rolling grooves; the closed end of the Contraband-type structure is connected to the bottom of the handle.
Optionally, a knife feeding groove is formed in the housing, and the bottom of the handle is connected with the knife feeding frame after penetrating through the knife feeding groove.
Optionally, the lengths of the knife feeding groove and the long gear are greater than or equal to the length of the window.
Optionally, the other end of the cutting pipe is connected with one end of a sealing joint, the other end of the sealing joint is connected with one end of a pipe joint, and the other end of the pipe joint is used for being connected with a negative pressure machine.
Optionally, the pipe joint is further provided with a bypass endoscopic joint.
Optionally, a knife edge is arranged on the inner wall of one end of the cutting pipe.
Compared with the prior art, the invention has the following technical effects:
the myocardial cutter can accurately cut the cardiac muscle of a hypertrophic part under the ultrasonic guidance of the esophagus, can monitor the pressure difference of the outflow tract of the left ventricle in real time through ultrasonic while cutting, determines the amount of the cardiac muscle to be cut, does not hurt the cardiac muscle of a non-target area by mistake, does not need an operator to judge the amount of the cardiac muscle to be cut by depending on experience, and increases the safety of the operation; and can finally communicate negative pressure mechanism through cutting the pipe and take out the myocardial tissue of cutting, prevent that the myocardial tissue of cutting from droing and leading to peripheral artery embolism.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a myocardial cutter according to the present invention;
FIG. 2 is an enlarged view of a portion of a myocardial cutter according to the present invention;
FIG. 3 is another schematic diagram of the myocardial cutter of the present invention.
Description of reference numerals: 1. a sleeve; 2. a window; 3. cutting a pipe; 4. a housing; 5. a tool feeding groove; 6. a handle; 7. a moving gear; 8. sealing the joint; 9. a seal ring; 10. a pipe joint; 11. a motor; 12. a long gear; 13. feeding a tool rest; 14. a steel ball; 15. an endoscopic joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, the present embodiment provides a myocardial cutter including a cannula 1, a cutting tube 3, a housing 4, a rotary drive mechanism, and a feed mechanism; the end part of one end of the sleeve 1 is a spherical seal, and the other end of the sleeve 1 is connected with the shell 4; a window 2 is arranged on the side wall of one end of the sleeve 1; one end of the cutting tube 3 is slidably inserted into the sleeve 1 and extends to the window 2; the other end of the pipe cutting 3 is in transmission connection with a rotary driving mechanism; the feed mechanism is used for controlling the relative position of one end of the cutting pipe 3 and the window 2; the rotary drive mechanism and the feed mechanism are both located within the housing 4.
In this embodiment, the rotation driving mechanism includes a motor 11, a long gear 12 and a moving gear 7; the motor 11 is in transmission connection with the long gear 12, and the long gear 12 is meshed with the moving gear 7; the moving gear 7 is coaxially connected with the cutting pipe 3; the moving gear 7 is connected with the feed mechanism. More specifically, the output shaft of the motor 11 is connected to an output gear, the long gear 12 is coaxially connected to an intermediate gear, the output gear is engaged with the intermediate gear, and the motor 11 drives the moving gear 7 to rotate the cutting tube 3, so that when one end of the cutting tube 3 comes into contact with myocardial tissue, the myocardial tissue can be cut.
The feed mechanism comprises a handle 6, a feed rack 13 and a steel ball 14; the bottom of the knife feeding frame 13 is of an Contraband-shaped structure with a downward opening, and the side walls on two sides in the Contraband-shaped structure are respectively provided with a steel ball 14; rolling grooves are formed in two sides of the moving gear 7, and the steel balls 14 are arranged in the rolling grooves; the closed end of the model Contraband is connected to the bottom of the handle 6.
The shell 4 is provided with a knife inlet groove 5, and the bottom of the handle 6 is connected with a knife feeding frame 13 after penetrating through the knife inlet groove 5. The lengths of the tool feed slot 5 and the long gear 12 are greater than or equal to the length of the window 2.
When the moving gear 7 rotates, the steel ball 14 rolls relative to the rolling groove, and the rotation of the moving gear 7 does not influence the mechanism; through promoting handle 6, handle 6 advances along tool feed groove 5, drives movable gear 7 and removes, will cut pipe 3 and promote forward to realize progressively cutting to the myocardium, because this feed operation is controlled by doctor's manual control completely, the doctor can select suitable feed volume according to actual conditions or experience, and the cutting of cutter mainly relies on the rotary drive that motor 11 provided to realize, need not additionally to consume doctor's strength, thereby can reduce doctor's intensity of labour among the operation process, be favorable to the doctor to use more energy in the control to cutting size.
The other end of the pipe cutting 3 is connected with one end of a sealing joint 8, the other end of the sealing joint 8 is connected with one end of a pipe joint 10, and the other end of the pipe joint 10 is used for being connected with a negative pressure machine. Sealing rings 9 are arranged between the sealing joint 8 and the pipe cutting 3 and the pipe joint 10.
Because the cutting tube 3 is positioned inside the cannula 1, the myocardial tissue which can be cut by the cutting tube 3 must be the part which enters the cannula 1 through the window 2, and in order to facilitate the myocardial tissue to enter the cannula 1 through the window 2, a certain negative pressure can be provided by a negative pressure machine to suck the myocardial tissue into the cannula 1, and meanwhile, the cut myocardial tissue can also be prevented from entering the surrounding blood vessels.
The inner wall of one end of the cutting tube 3 is provided with a knife edge which is a conical structure of the inner wall of the cutting tube 3, and the cutting angle can be changed by adjusting the angle of the conical structure.
Example two:
as shown in fig. 3, the present embodiment is a modified embodiment from the first embodiment, and in the present embodiment, a bypass endoscopic joint 15 is further provided to the pipe joint 10. The endoscope is inserted into the cutting tube 3 through the endoscope connector 15, so that the endoscope extends to the window 2, a better visual field is provided, and the operation is convenient to carry out.
When the endoscope and the negative pressure machine are used together, a seal structure needs to be provided between the endoscopic joint 15 and the endoscope, and specifically, a seal ring may be provided at an end portion of the endoscopic joint 15 so that the endoscope passes through the seal ring.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A myocardial cutter is characterized by comprising a sleeve, a cutting tube, a shell, a rotary driving mechanism and a cutter feeding mechanism; the end part of one end of the sleeve is a spherical seal, and the other end of the sleeve is connected with the shell; a window is arranged on the side wall of one end of the sleeve; one end of the cutting pipe extends into the sleeve in a sliding mode and extends to the window; the other end of the pipe cutting machine is in transmission connection with the rotary driving mechanism; the feed mechanism is used for controlling the relative position of one end of the cutting pipe and the window; the rotary driving mechanism and the feed mechanism are both positioned in the shell.
2. The myocardial cutter of claim 1 wherein the rotary drive mechanism includes a motor, a long gear, and a moving gear; the motor is in transmission connection with the long gear, and the long gear is meshed with the moving gear; the moving gear is coaxially connected with the cutting pipe; the moving gear is connected with the feed mechanism.
3. The myocardial cutter of claim 2, wherein the feed mechanism comprises a handle, a feed block, and a steel ball; the bottom of the tool feeding frame is of an Contraband-shaped structure with a downward opening, and the side walls on two sides in the Contraband-shaped structure are respectively provided with the steel ball; rolling grooves are formed in two sides of the moving gear, and the steel balls are arranged in the rolling grooves; the closed end of the Contraband-type structure is connected to the bottom of the handle.
4. The myocardial cutter as claimed in claim 3, wherein the housing has a knife slot, and the bottom of the handle is connected to the knife holder after passing through the knife slot.
5. The myocardial cutter of claim 4, wherein the length of the knife inlet slot and the long gear is greater than or equal to the length of the window.
6. The myocardial cutter of claim 1, wherein the other end of the cutting tube is connected to one end of a sealing joint, the other end of the sealing joint being connected to one end of a tube connector, the other end of the tube connector being adapted to be connected to a negative pressure machine.
7. The myocardial cutter according to claim 6, wherein the tube connector is further provided with a bypass endoscopic connector thereon.
8. The myocardial cutter of claim 1, wherein the inner wall of one end of the cutting tube is provided with a knife edge.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210864433.6A CN115105168A (en) | 2022-07-21 | 2022-07-21 | Myocardial cutter |
| ZA2022/09141A ZA202209141B (en) | 2022-07-21 | 2022-08-16 | Myocardial cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210864433.6A CN115105168A (en) | 2022-07-21 | 2022-07-21 | Myocardial cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115105168A true CN115105168A (en) | 2022-09-27 |
Family
ID=83335262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210864433.6A Withdrawn CN115105168A (en) | 2022-07-21 | 2022-07-21 | Myocardial cutter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115105168A (en) |
| ZA (1) | ZA202209141B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117243670A (en) * | 2023-11-16 | 2023-12-19 | 英特姆(武汉)医疗科技股份有限公司 | Mechanical continuous myocardial tissue excision system |
-
2022
- 2022-07-21 CN CN202210864433.6A patent/CN115105168A/en not_active Withdrawn
- 2022-08-16 ZA ZA2022/09141A patent/ZA202209141B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117243670A (en) * | 2023-11-16 | 2023-12-19 | 英特姆(武汉)医疗科技股份有限公司 | Mechanical continuous myocardial tissue excision system |
| CN117243670B (en) * | 2023-11-16 | 2024-02-13 | 英特姆(武汉)医疗科技股份有限公司 | Mechanical continuous myocardial tissue excision system |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202209141B (en) | 2022-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220927 |