CN210158655U - Medical instrument - Google Patents

Abstract

The utility model relates to a medical appliance, which comprises a holding device, a clamping device, a grasping forceps device and a firing device, wherein the clamping device connected with the holding device through the firing device comprises at least one clamp for placing a ligation clip, the grasping forceps device comprises at least one grasping forceps for grasping target tissues, the firing device comprises at least two firing rods and a firing shell coated outside the firing rods, the firing rods move relative to the firing shell, one end of at least one firing rod is connected with at least one clamp, and one end of at least one firing rod is connected with at least one grasping forceps; when the firing rod fires and drives the clamp to work, the grasping forceps are driven by the firing rod to contract in the firing shell. The utility model has the advantages of being simple in structure and convenient in operation, through being provided with nipper device and clamping device and making one of them during operation between the two, another shrink reaches the effect that reduces change apparatus time, improves work efficiency in the percussion shell.

Description

Medical instrument

Technical Field

The utility model relates to a medical instrument, which belongs to the technical field of medical instruments.

Background

To fully expose the surgical field during surgery, ligation of the target tissue is required 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, in the operation process, after the ligation is finished, the operator needs to grab the tissue to expose the visual field or separate the tissue, and then the operator needs to change the instrument, so that the operation time is prolonged, the efficiency is reduced, the bleeding amount of the patient is increased, and the postoperative rehabilitation period is prolonged. In addition, hospitals need to prepare a plurality of surgical instruments, which increases the inventory and surgical cost of the hospitals.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical instrument that has multi-functionally and simple structure, convenient operation, can save the change apparatus time.

In order to achieve the above purpose, the utility model provides a following technical scheme: a medical instrument comprises a holding device, a clamping device, a grasping device and a firing device, wherein the clamping device and the grasping device are connected with the holding device through the firing device, the holding device drives the firing device to fire under the action of external force so that the firing device drives the clamping device or the grasping device to close, the clamping device comprises at least one clamp for placing a ligation clamp, the grasping device comprises at least one grasping clamp for grasping target tissues, the firing device 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 is connected with at least one clamp, and one end of at least one firing rod is connected with at least one grasping clamp; when the firing rod fires and drives the clamp to work, the grasping forceps are driven by the firing rod to contract in the firing shell.

Furthermore, the medical apparatus further comprises a firing shell coated on the outer side of the firing rod, and the medical apparatus further comprises at least one shifting rod arranged on the firing rod, and the shifting rod pushes the firing rod to move relative to the firing shell.

Furthermore, an opening is formed in the firing shell or the holding device, 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 further comprises a firing brake selectively retainable at least on one of the firing bars 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.

Furthermore, each firing rod is provided with two stop blocks, and a clamping space for clamping the firing braking part is formed between the two stop blocks.

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.

Further, the clamping part is an inverted-wave-shaped block, the inverted-wave-shaped block comprises a pit part, and the pit part is clamped on the firing rod and forms interference with the stop block.

Further, the clamping part is a circular block, an opening is formed in the circular block, and the circular block is clamped on the firing rod through the opening and forms interference with the stop block.

Further, the firing brake is disposed on the holding device or the firing device.

Furthermore, the holding device comprises a shell, a driving device arranged in the shell and connected with the firing device, a control circuit in signal connection with the driving device to control the driving device, and a first switch and a second switch which are arranged on the shell and in signal connection with the control circuit.

The beneficial effects of the utility model reside in that: the utility model has the advantages of multifunction, simple structure and convenient operation, and has multiple functions by arranging the nipper device and the clamp device, when one of the nipper device and the clamp device works, the other one is contracted in the percussion shell, thereby achieving the effects of reducing the time for exchanging instruments and improving the working efficiency; the medical instrument of the utility model has simple structure and convenient operation.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the medical device of the present invention.

Fig. 2 is another schematic structural diagram of the medical device of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 is a schematic view of the internal structure of the medical device of the present invention.

FIG. 5 is a schematic view of the firing stop of FIG. 2.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to 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 4, a medical apparatus according to a preferred embodiment of the present invention includes a holding device 1, a clamping device 3, a grasping device 8, and a firing device 2, wherein the clamping device 3 and the grasping device 8 are connected to the holding device 1 through the firing device 2, the holding device 1 drives the firing device 2 to fire under the action of external force, and then the firing device 2 drives the clamping device 3 or the grasping device 8 to close, the clamping device 3 includes at least one clamp 31 for placing a ligating clip, the grasping device 8 includes at least one grasping forceps 81 for grasping a target tissue, the firing device 2 includes at least two firing rods and a firing housing 20 covering the outside of the firing rods, the firing rods move relative to the firing housing 20, one end of at least one of the firing rods is connected to at least one of the clamps 31, one end of at least one of the firing bars is connected to at least one of the graspers 81. When the firing bar fires and drives the clamp 31 or the grasping forceps 81 to work, the clamp 31 or the grasping forceps 81 is retracted in the firing shell 20 under the driving of the firing bar. In this embodiment, the clamping device 3 comprises one clamp 31, the clamping device 8 comprises one clamp 81, and the firing device 2 comprises two firing bars, i.e. one of the firing bars has one end connected to the clamp 31 and the other firing bar has one end connected to the clamp 81, and each firing bar is driven by the holding device 1 to drive the corresponding clamp 31 or clamp 81 to close. Indeed, in other embodiments, the number of the firing bars may be three, four or even more, and accordingly, the number of the clamping jaws 31 and the number of the grasping forceps 81 may also be increased, which is not limited herein, according to the actual situation. The jaws 31 are connected to the firing bar and are driven by the firing bar to close the corresponding jaws 31 such that a ligating clip disposed within the clamping device is closed. The grasping forceps 81 are connected to the firing bar and driven by the firing bar to close the corresponding grasping forceps 81, so that the grasping forceps 81 grasp the target tissue. It should be noted that in operation of either of the jaws 31 and 81, the other must be retracted within the firing housing 20 to prevent inadvertent manipulation of the target tissue with serious consequences. The graspers 81 are retracted within the firing housing 20, such as when the jaws 31 are in operation, to avoid inadvertent grasping of the target tissue; the jaws 31 retract within the firing housing 20, such as when the grasper 81 is in operation, to avoid mis-closing of the target tissue.

The medical instrument further comprises a shift lever 5 arranged on each firing rod, and the shift lever 5 pushes the firing rods to move relative to the firing shell 20. An opening 13 is formed in the firing shell 20 or the holding device 1, and the shift lever 5 extends into the opening 13 to be connected with the firing rod so as to drive the firing rod to move. In this embodiment, the number of the shift levers 5 is the same as the number of the firing rods, and correspondingly, the number of the openings 13 is also two, and each shift lever 5 passes through each opening 13 to be connected with one firing rod. Specifically, one end of the shift lever 5 is fixedly arranged on the firing rod, and the other end of the shift lever 5 penetrates through the opening 13 to facilitate shifting of an operator. For the sake of distinction, the shift lever 5 is a first shift lever and a second shift lever, respectively. The direction of arrow a in the figure is the forward direction, and the opposite direction is the backward direction. Toggling the first toggle lever or the second toggle lever forward, the clamp 31 or the grasper 81 extends at one end of the firing housing 20. Toggling the first toggle lever or the second toggle lever backwards retracts the clamp 31 or the grasper 81 into the firing housing 20.

In this embodiment, the gripping device 1 is in a manual mode, and includes a housing 10, a fixed handle 11 connected to the housing 10, and a firing handle 12 disposed at one side of the fixed handle 11, wherein the firing handle 12 is movably disposed at one side of the clamp 31 via a pin 121 and moves back and forth relative to the fixed handle 11. Taking this embodiment as an example, arrow a in the figure indicates a forward movement direction, and the opposite direction is a backward movement direction. The firing device 2 is connected with the firing handle 12, and external force is applied to enable the firing handle 12 to move towards the fixed handle 11, so that the firing device 2 is driven to move towards the direction opposite to the direction of the applied external force, and the clamping device or the grasping device is driven to be fastened; the application of external force causes the firing handle 12 to move away from the fixed handle 11, and the firing handle 12 drives the firing device 2 to move in the opposite direction of the applied external force to drive the clamping device 3 or the grasping device 8 to open.

Indeed, in other embodiments, the holding device 1 may also be in a power-driven mode, at this time, the holding device 1 includes a driving device disposed in the housing 10 and connected to the firing device, a control circuit in signal connection with the driving device to control the driving device, and a first switch and a second switch disposed on the housing and in signal connection with the control circuit. The driving device comprises a driving motor, a first gear connected with the driving motor, a second gear meshed with the first gear and a screw rod connected with the second gear, and the driving device is connected with the firing rod through the screw rod. The first switch is pressed, and the control circuit controls the driving device so as to drive the firing rod to move forwards; and when the second switch is pressed, the control circuit controls the driving device so as to drive the firing rod to move backwards.

In this embodiment, the firing device 2 comprises two firing bars, namely a first firing bar 21 and a second firing bar 22, wherein one end of the first firing bar 21 is connected to the clamp 31, and one end of the second firing bar 22 is connected to the grasper 81. An external force is applied to the firing handle 12, and the firing handle 12 drives the first firing bar 21 or the second firing bar 22 to fire and drive the jaws 31 or the graspers 81 to close. In this embodiment, a connecting member 7 is disposed at the other end of the first firing bar 21 and the second firing bar 22, and the connecting member 7 connects the first firing bar 21 and the second firing bar 22 and is connected to the firing handle 12 through a connecting shaft 71. Indeed, in other embodiments, the other ends of the first and second firing bars 21 and 22 may be directly connected to the firing handle 12 at the same time for the same purpose, and are not limited herein, depending on the actual situation.

The medical instrument further comprises a firing shell 20 covering the outer side of the firing bars and a firing brake 62 selectively clamped on at least one of the firing bars to limit the firing of the firing bars. The firing stop 62 can be an object that limits retraction of the stapling instrument into the firing housing 20 or an object that limits extension of the stapling instrument out of the firing housing 20. The firing stop 62 may be a compression spring having one end fixedly disposed within the firing housing 20 and the other end connected to the firing bar, wherein the spring force of the compression spring is small enough to allow the firing bar to retract within the firing housing 20 or extend out of the firing housing 20 even when an external force is applied. The above is by way of example only and is not intended to be a specific limitation on the firing stop 62. The firing stop 20 is designed to render the jaws 31 inoperative while the graspers 81 are active, so it is desirable to lock the jaws 31. To facilitate the operation of the grasper 81, the jaws 31 are positionally offset from the grasper 81, preferably by retracting the jaws 31 within the firing housing 20. The firing brake 62 is disposed on the holding device 1 or the firing device 2, and both have a function of limiting a firing bar, in this embodiment, the firing brake 62 is disposed on the holding device 1. More specifically, the firing stop 62 is disposed on the housing 10. The casing 10 is provided with a through hole 13, a rotating shaft is arranged in the through hole 13, and the trigger braking part 62 moves up and down relative to the casing 10 through the rotating shaft.

Wherein, a stop block 61 is arranged on each firing rod, and the firing brake block 62 is interfered with the stop block 61 to limit the firing of the firing rods. The firing brake 62 includes a catch 622 interfering with the stopper 61 and a pressing portion 621 located at one side of the catch 622 for applying force. The clamping part 622 is an inverted corrugated block which comprises a concave pit part 6221, and the concave pit part 6221 is clamped on the firing rod and forms interference with the stop block 61. Indeed, in other embodiments, the retaining portion 622 may be a block with other shapes, as the case may be. For example, the holding portion 622 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 61 to limit the firing bar, the opening is provided at one side of the circular block, etc., without being limited thereto. As mentioned above, in the present embodiment, the number of the firing bars is two, and the firing bars are respectively connected to the forceps 31 and the grasping forceps 81, and the number of the firing stoppers 62 is also two, and the two firing stoppers are respectively arranged at one side of the firing bars. The pressing portion 621 is disposed outside the firing housing 20 to apply an external force, and the retaining portion 622 is disposed inside the firing housing 20 to retain the firing bar or the stop 61 thereon. Referring to FIG. 5, in the present embodiment, since there are only two firing bars, there are two firing stops 62. The concave part 6221 of the holding part 622 is held on the firing bar and is abutted against the stop 61 to limit the firing bar. Indeed, in other embodiments, the catch 622 of the firing brake may also include a recess 6221 and a connecting portion 6222 for connecting the recess 6221. In the case of only two firing rods, the catching portion 622 only needs two concave portions 6221 and one connecting portion 6222 connecting the two concave portions 6221, so that the catching portion 622 is of an inverted "W" shape, the catching portion 622 is connected with the pressing portion 621, and the concave portions 6221 are caught on the firing rod and abut against the stop block 61 to limit the firing rod. For example, when the jaws 31 extend out of the firing housing 20, the graspers 81 retract within the firing housing 20 to a position that is forward of the clamping mechanism, and the catch 622 catches behind the stop 61 on the first firing bar 21 and at the same time catches forward of the stop 61 on the second firing bar 22 for this purpose.

Of course, each of the firing bars may also be provided with two stoppers 61, a holding space is formed between the two stoppers 61, and the firing brake 62 is held in the holding space, as in the above case. However, when the catch 622 is inverted "W", the indentation 6221 catches on the firing bar and abuts the stop 61 to restrain the firing bar. In the present embodiment, the two stoppers disposed on the first firing bar 21 are called a first stopper and a second stopper, respectively, and the two stoppers disposed on the second firing bar 22 are called a third stopper and a fourth stopper, respectively, when the clamp 31 extends out of the firing housing 20 and the grasping forceps 81 are retracted in the firing housing 20, the holding portion 622 is held by the first stopper on the first firing bar 21 and simultaneously held by the fourth stopper on the second firing bar 22.

Indeed, in other embodiments, the number of stops 61 may be other, and the shape of the firing stop 62 may be other, as the case may be, without limitation.

The medical instrument further comprises a rotating handle 4 which is sleeved on the firing shell 20 and connected with the holding shell 10, the rotating handle 4 is rotated, the rotating handle 4 drives the holding device 1 to rotate so as to adjust the clamping angle, and an operator can operate the medical instrument conveniently.

When the medical instrument of this embodiment is used for operation, if one of the forceps 31 or the grasper 81 needs to be operated during an operation, the operator presses the pressing portion 621, so that the holding portion 622 moves upward away from the first firing rod 21 and the second firing rod 22, and then pulls one of the shift levers 5, for example, the first shift lever, and then releases the pressing portion 621, so that the holding portion 622 is held by the first stopper and the fourth stopper to achieve the purpose, and the opposite operation is as above, which is not described herein again.

In summary, the following steps: the multifunctional percussion forceps have multiple functions by arranging the grasping forceps device 8 and the clamping forceps device 3, when one of the grasping forceps device 8 and the clamping forceps device 3 works, the other one contracts in the percussion shell 20, and therefore the effects of reducing the time for exchanging instruments and improving the working efficiency are achieved; the medical instrument of the utility model has simple structure and convenient operation.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. A medical appliance is characterized by comprising a holding device, a clamp device, a nipper device and a firing device, the gripping device drives the firing device to fire under the action of external force so as to drive the clamping device or the grasping device to close, the clamping device comprises at least one clamp for placing a ligation clip, the grasping device comprises at least one grasping forceps for grasping target tissue, the firing device comprises at least two firing rods and a firing shell covering the outer sides of the firing rods, the firing rod moves relative to the firing shell, one end of at least one firing rod is connected with at least one clamp, and one end of at least one firing rod is connected with at least one grasping clamp; when the firing rod fires and drives the clamp to work, the grasping forceps are driven by the firing rod to contract in the firing shell.

2. The medical device of claim 1, further comprising a firing housing surrounding the firing bar, wherein the medical device further comprises at least one shift lever disposed on the firing bar, wherein the shift lever urges the firing bar to move relative to the firing housing.

3. The medical device of claim 2, wherein an opening is defined in one of said firing housing and said grasping device, and wherein said rod extends into said opening and is coupled to said firing rod to actuate movement of said firing rod.

4. The medical instrument of claim 1, further comprising a firing stop selectively retainable to at least one of said firing bars to limit firing of said firing bar.

5. The medical device of claim 4, wherein a stop is disposed on each of said firing bars, said firing stop interfering with said stop to limit firing of said firing bars.

6. The medical instrument of claim 4 wherein each of said firing bars includes two stops, and a retention space is defined between said two stops for retaining said firing stop.

7. The medical instrument of claim 5 or 6 wherein said firing stop includes a catch that interferes with said stop and a press on one side of said catch to apply force.

8. The medical instrument of claim 7, wherein the catch is an inverted corrugated block comprising a dimple that catches on the firing bar and interferes with the stop.

9. The medical device of claim 7, wherein the retaining portion is a circular block having an opening disposed therein, the circular block being retained on the firing bar through the opening and interfering with the stop.

10. The medical instrument of claim 4, wherein the firing stop is disposed on the grip or firing device.

11. The medical instrument of claim 1, wherein the grasping device includes a housing, a drive disposed within the housing and coupled to the firing device, a control circuit in signal communication with the drive to control the drive, and a first switch and a second switch disposed on the housing and in signal communication with the control circuit.

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