CN111265266B

CN111265266B - Medical instrument

Info

Publication number: CN111265266B
Application number: CN201811477850.5A
Authority: CN
Inventors: 周丙超; 张翚; 杜运峰; 刘殿臣
Original assignee: Suzhou IntoCare Medical Technology Co Ltd
Current assignee: Suzhou IntoCare Medical Technology Co Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2021-07-02
Anticipated expiration: 2038-12-05
Also published as: CN111265266A

Abstract

The invention relates to a medical instrument, which comprises a handle for holding and a working head connected with the handle, wherein the working head comprises at least two firing rods and a firing shell covering the outer sides of the firing rods, the firing rods move relative to the firing shell, one end of at least one firing rod, which is far away from the handle, is provided with a first clamp, one end of at least one firing rod, which is far away from the handle, is detachably provided with a replaceable end part executing part, and the handle drives the firing rods to further drive the first clamp and/or the replaceable end part executing part to be closed. The first clamp is arranged at one end of at least one firing rod, and the replaceable end executing part is detachably arranged at one end of at least one firing rod, so that the effect of replacing different chucks according to actual needs is achieved, and meanwhile, the effects of reducing the time for exchanging instruments and improving the working efficiency are achieved.

Description

Medical instrument

Technical Field

The invention relates to a medical instrument, and belongs to the technical field of medical instruments.

Background

To fully expose the surgical field during surgery, it is necessary to ligate the severed blood vessels within the incision to prevent bleeding. Hemostasis technology has become one of the cores of basic operation technology of surgical operation, and the surgical operation of any part of human body involves bleeding and hemostasis almost without exception, and generally the hemostasis is closed by using a clip applying and ligating clip. However, during the operation, due to other operation requirements, the operator needs to exchange the instruments, thereby prolonging the operation time, reducing the efficiency and increasing the bleeding volume of the patient. In addition, hospitals are required to prepare a variety of surgical instruments, increasing hospital inventory and surgical costs.

Disclosure of Invention

The invention aims to provide a medical instrument which is multifunctional, simple in structure, convenient to operate and capable of saving the time for exchanging the instrument.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a medical instrument, including the handle that is used for gripping and with the working head that the handle is connected, the working head includes two at least firing bars and cladding in the firing shell outside the firing bar, the firing bar for the firing shell removes, and the one end that at least one firing bar kept away from the handle is provided with first clamp, and the one end detachably that at least one firing bar kept away from the handle is provided with interchangeable tip executive component, the handle drive the firing bar and then drive first clamp and/or the closure of interchangeable tip executive component.

Further, threads are arranged on one end, far away from the handle, of at least one firing rod, and the replaceable end execution piece is in threaded connection with the firing rod.

Further, the replaceable end effector is a second jaw or shear or grasper.

Further, the replaceable end effector is retracted within the firing housing upon actuation of the firing bar.

Further, the first jaw may be detachably coupled to the firing bar.

Furthermore, the medical instrument also comprises at least one shifting lever arranged on the firing rod, and the shifting lever pushes the firing rod to move relative to the firing shell.

Furthermore, an opening is formed in the firing shell, and the shifting rod extends into the opening and is connected with the firing rod so as to drive the firing rod to move.

Further, the medical instrument may further include at least one firing stop selectively captured on the firing bar to limit firing of the firing bar.

Further, a stop is arranged on each firing rod, and the firing braking piece and the stop form interference to limit the firing of the firing rods.

Further, the trigger braking part comprises a clamping part and a pressing part, wherein the clamping part is interfered with the stop block, and the pressing part is located on one side of the clamping part and is used for applying force.

Furthermore, the working head further comprises a driving device which is connected with the firing rod and used for driving the firing rod, the driving device comprises a driving motor, a first gear which is connected with the driving motor, a second gear which is meshed with the first gear and a screw rod which is connected with the second gear, and the driving device is connected with the firing rod through the screw rod.

Furthermore, the handle also comprises a shell, a control circuit arranged in the shell, a first switch and a second switch which are arranged on the shell and connected with the control circuit through signals, and the driving device is connected with the control circuit through signals.

The invention has the beneficial effects that: the first clamp is arranged at one end of at least one firing rod, and the replaceable end executing part is detachably arranged at one end of at least one firing rod, so that the effect of replacing different chucks according to actual needs is achieved, and meanwhile, the effects of reducing the time for exchanging instruments and improving the working efficiency are achieved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic view of the overall structure of the medical device of the present invention.

Fig. 2 is a schematic cross-sectional view of the medical device of the present invention.

Fig. 3 is another cross-sectional structural view of the medical device of the present invention.

Fig. 4 is a schematic cross-sectional view of a medical device of the present invention.

Fig. 5 is a partially enlarged schematic view of fig. 5.

Fig. 6 is a partial structural schematic diagram of fig. 1.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 6, a medical instrument according to a preferred embodiment of the present invention includes a handle 1 for holding and a working head 2 connected to the handle 1, wherein the working head 2 includes at least two firing bars and a firing shell 20 covering the outside of the firing bars, and the firing bars move relative to the firing shell 20.

In the present embodiment, the handle 1 is an electric handle, and includes a housing 10, a control circuit (not shown) disposed in the housing 10, and a first switch 11 and a second switch 12 disposed on the housing 10 and connected to the control circuit by signals. The working head 2 further comprises a driving device 8 connected with the firing rod and used for driving the firing rod, the driving device 8 comprises a driving motor (not shown), a first gear 81 connected with the driving motor, a second gear 82 engaged with the first gear 81 and a screw 83 connected with the second gear 82, and the driving device 8 is connected with the firing rod through the screw 83. The driving device 8 is in signal connection with the control circuit. The first switch 11 is pressed forward in the direction of arrow a in fig. 1, and the control circuit controls the driving device 8 to drive the firing rod to move forward; the second switch 12 is pressed, and the control circuit controls the driving device 8 to drive the firing rod to move backwards.

Indeed, in other embodiments, the handle 1 may also be in a manual mode (not shown), and includes a fixed handle fixedly connected to the housing 10 and a firing handle disposed at one side of the fixed handle, and the firing handle is movably disposed at one side of the fixed handle through a pin and moves back and forth relative to the fixed handle. Applying external force to enable the firing handle to move towards the fixed handle direction, and driving the firing rod to move towards the direction opposite to the direction of applying the external force; and applying an external force to enable the firing handle to move towards a direction far away from the fixed handle, and driving the firing rod to move towards the opposite direction of the applied external force by the firing handle.

A first clamp 6 is fixedly arranged at one end, far away from the handle 1, of at least one firing rod, a replaceable end execution part 7 is detachably arranged at one end, far away from the handle 1, of at least one firing rod, the replaceable end execution part 7 comprises a second clamp or a shearing part or a grasping clamp and the like, and the handle 1 drives the firing rod to further drive the replaceable end execution part 7 to close. In this embodiment, the cutting member is a scissors. At least one end of the firing rod far away from the handle 1 is provided with threads, and the replaceable end execution piece 7 is in threaded connection with the firing rod so as to be detachable. In this embodiment, the replaceable end effector 7 is threadably connected to the firing bar by a second linkage 71 for disassembly purposes. Indeed, in other embodiments, the replaceable end effector 7 may be detachably connected to the firing rod in other ways, which are not described herein.

In this embodiment, the number of the firing bars is two, and the two firing bars are respectively a first firing bar 21 and a second firing bar 22. Indeed, in other embodiments, the number of the firing bars may be other, and is not limited herein, depending on the actual situation. Wherein, one end of the first firing bar 21 is provided with a first clamp 6, and one end of the second firing bar 22 is detachably provided with a second clamp or a cutting piece or a grasping clamp. When the second jaw 7 is mounted on one end of the second firing bar 22, the first firing bar 21 and the second firing bar 22 can be fired simultaneously. Alternatively, when the first firing bar 21 or the second firing bar 22 is fired, the second firing bar 22 or the second firing bar 22 causes the second jaw 7 or the first jaw 6 to retract within the firing housing 20.

When a shear or a grasper is mounted on one end of the second firing bar 22, the first firing bar 21 and the second firing bar 22 cannot be fired simultaneously to avoid malfunction. When the first clamp 6 is driven to work by the firing of the first firing bar 21, the cutting piece or the grasping clamp is retracted in the firing shell 20 under the driving of the second firing bar 22.

Indeed, in other embodiments, the first jaw 6 is removably connected to the first firing rod 21 by a first connection 61. After the first clamp 6 and the first firing rod 21 are detached, the first clamp 6 can be replaced by a replaceable end effector 7, and the connection mode is the same as the above scheme according to actual situations, which is not described herein.

The medical instrument further comprises a shift lever 4 arranged on each firing rod, and the shift lever 4 pushes the firing rods to move relative to the firing shell 20. The firing shell 20 is provided with an opening 41, and the shift lever 4 extends into the opening 41 and is connected with the firing rod to drive the firing rod to move. In this embodiment, the number of the shift levers 4 is the same as the number of the firing rods, and correspondingly, the number of the openings 41 is also two, and each shift lever 4 passes through each opening 41 to be connected with one firing rod. Specifically, one end of the shift lever 4 is fixedly arranged on the firing rod, and the other end of the shift lever 4 passes through the opening 41 to facilitate shifting by an operator. For the sake of distinction, the shift lever 4 is a first shift lever and a second shift lever, respectively, and the first shift lever or the second shift lever is shifted forward, and the clamp or the cutter or the grasper extends at one end of the firing housing 20. Toggling the first toggle lever or the second toggle lever backwards retracts the jaws or shears or graspers into the firing housing 20.

The medical instrument further comprises a firing stop 3 selectively retainable to the firing bar to limit firing of the firing bar. The firing stop 3 is primarily provided for use in displacing the replacement device 7 from the jaws 6 when it is a shear or grasper, and will not be described in detail herein when one end of the second firing bar 22 is mounted as a jaw 6. The firing stop 3 is designed so that the jaws 6 are not active when the shear or grasper is active, so it is desirable to lock the jaws 6. To facilitate the cutting member or grasper operation, the jaws 6 are positionally misaligned, preferably by retracting the jaws 6 within the firing housing 20. The firing brake 3 is arranged on the firing bar for limiting, in this embodiment, the firing brake 3 is arranged on the firing housing 20. The percussion shell 20 is provided with a through hole, a rotating shaft is arranged in the through hole, and the percussion braking piece moves up and down relative to the percussion shell 20 through the rotating shaft.

Wherein, each firing rod is provided with a stop block 9, and the firing braking piece 3 and the stop block 9 form interference to limit the firing of the firing rods. In this embodiment, the number of firing stops 3 is the same as the number of firing bars. The firing brake 3 comprises a holding part 32 interfering with the stopper 9 and a pressing part 31 located at one side of the holding part 32 for applying force. The clamping part 32 is an inverted corrugated block which comprises a pit part, and the pit part is clamped on the firing rod and forms interference with the stop block 9. Indeed, in other embodiments, the retaining portion 32 may be a block of other shapes, as the case may be. For example, the holding portion 32 may be a circular block, which is provided with an opening through which the circular block is held with the firing bar and interferes with the stopper 9 to limit the firing bar, the opening is provided at one side of the circular block, etc., without being limited thereto. When the forceps 6 extend out of the firing housing 20, the cutting member or grasper is retracted within the firing housing 20, and the position of the forceps 6 is the front side, the retaining portion is retained behind the stop 9 on the first firing bar 21 and at the same time is retained in front of the stop 9 on the second firing bar 22 for this purpose.

Of course, each of the firing bars may also be provided with two stoppers 9, a clamping space is formed between the two stoppers 9, and the firing braking member 3 is clamped in the clamping space, as in the above case. When the clamp 6 extends out of the firing shell 20 and the cutting member or the grasping forceps is retracted in the firing shell 20, the clamping part of one firing brake is clamped at the rear part of the first stop on the first firing rod 21, and the clamping part of the other firing brake is clamped in front of the fourth stop on the second firing rod 22, so as to achieve the purpose.

Indeed, in other embodiments, the number of stops 9 may be other, and the shape of the firing stop may be other, as the case may be, without any particular limitation.

The medical instrument further comprises a rotating handle 51 which is used for connecting the handle 1 and the working head 2, and the rotating handle 51 is rotated to adjust the clamping angle, so that an operator can operate the medical instrument conveniently.

When the medical instrument of this embodiment is used for operation, if one of the first clamp 6 and the replaceable end effector 7 is needed during an operation, an operator presses the pressing portion 31 to move the retaining portion 32 upward away from the first firing rod 21 and the second firing rod 22, and shifts one of the shift levers 4, for example, the first shift lever, and then releases the pressing portion 31 to retain the retaining portion 32 and the stopper 9, so as to achieve this purpose.

In summary, the following steps: the first clamp 6 is arranged at one end of at least one firing rod, the replaceable end executing part 7 is detachably arranged at one end of at least one firing rod, the effect of replacing different chucks according to actual needs is achieved, and meanwhile, the effects of reducing the time of exchanging instruments and improving the working efficiency are achieved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A medical instrument is characterized by comprising a handle for holding and a working head connected with the handle, wherein the working head comprises at least two firing rods and a firing shell covering the outer sides of the firing rods, the firing rods move relative to the firing shell, one end, far away from the handle, of each firing rod is provided with a first clamp, one end, far away from the handle, of each firing rod is detachably provided with a replaceable end part executing part, and the handle drives the firing rods to further drive the first clamps and/or the replaceable end part executing parts to be closed;

the medical instrument also comprises at least one shifting lever arranged on the firing rod, and the shifting lever pushes the firing rod to move relative to the firing shell; the medical instrument further includes at least one firing stop selectively captured on the firing bar to limit firing of the firing bar.

2. The medical device of claim 1, wherein at least one of said firing bars is threaded at an end remote from the handle, and said replaceable end effector is threaded to said firing bar.

3. The medical device of claim 1, wherein the replaceable end effector is a second jaw or shear or grasper.

4. The medical instrument of claim 1, wherein said replaceable end effector is retracted within said firing housing upon actuation of said firing bar.

5. The medical device of claim 1, wherein the first jaw is detachably coupled to the firing bar.

6. The medical device of claim 1, wherein said firing housing defines an opening therein, said rod extending into said opening and engaging said firing rod to move said firing rod.

7. The medical device of claim 1, wherein each of said firing bars has a stop disposed thereon, said firing stop interfering with said stop to limit firing of said firing bars.

8. The medical instrument of claim 7 wherein said firing stop includes a catch that interferes with said stop and a press located to one side of said catch for applying force.

9. The medical instrument of claim 1, wherein the working head further comprises a drive device coupled to the firing bar for driving the firing bar, the drive device comprising a drive motor, a first gear coupled to the drive motor, a second gear in mesh with the first gear, and a threaded rod coupled to the second gear, the drive device coupled to the firing bar via the threaded rod.

10. The medical device of claim 9, wherein said handle further comprises a housing, a control circuit disposed within said housing, and a first switch and a second switch disposed on said housing in signal communication with said control circuit, said drive means being in signal communication with said control circuit.