medical devices

Abstract

The present invention relates to a medical device, comprising a gripping device, a clamping device, a shearing device and a firing device, wherein the clamping device and the shearing device are connected to the gripping device through the firing device, the clamping device comprises at least one clamp for placing a ligation clamp, the shearing device comprises at least one shearing piece for shearing a target tissue, the firing device comprises at least two firing rods and a firing shell wrapped around the outside of the firing rods, the firing rods move relative to the firing shells, one end of at least one firing rod is connected to at least one clamp, and one end of at least one firing rod is connected to at least one shearing piece; when the firing rod fires to drive the clamp to work, the shearing piece is retracted in the firing shell driven by the firing rod. By providing a shearing device and a clamping device and making one of the two retract in the firing shell when the other is working, the effect of reducing the time for changing the device and improving the work efficiency is achieved.

Description

Technical Field

[0001] The invention relates to a medical device, and belongs to the technical field of medical devices. Background Art

[0002] In order to fully expose the surgical field of view during surgery, it is necessary to ligate the broken blood vessels in the incision to stop bleeding. Hemostasis technology has become one of the core basic surgical operation techniques. Surgical operations on any part of the human body almost without exception involve bleeding and hemostasis, and generally use clips and ligatures to close and stop bleeding. However, during the operation, due to the need for ligation, the target tissue needs to be sheared, so the operator needs to change the instrument, which prolongs the operation time, reduces efficiency, and increases the patient's bleeding. In addition, the hospital needs to prepare a variety of surgical instruments, which increases the hospital's inventory and surgical costs. Summary of the invention

[0003] The object of the present invention is to provide a multifunctional medical device with a simple structure, convenient operation and capable of saving time in replacing the device.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medical device, comprising a holding device, a clamping device, a shearing device and a firing device, wherein the clamping device and the shearing device are connected to the holding device through the firing device, the holding device drives the firing device to fire under the action of an external force, and then the firing device drives the clamping device or the shearing device to close, the clamping device comprises at least one clamp for placing a ligation clip, the shearing device comprises at least one shearing piece for shearing a target tissue, the firing device comprises at least two firing rods and a firing shell covered on the outside of the firing rods, the firing rods move relative to the firing shell, at least one end of the firing rods is connected to at least one clamp, and at least one end of the firing rods is connected to at least one shearing piece; when the firing rod fires to drive the clamp to work, the shearing piece shrinks in the firing shell driven by the firing rod.

[0005] Furthermore, the medical device further comprises at least one lever disposed on the firing rod, and the lever pushes the firing rod to move relative to the firing housing.

[0006] Furthermore, an opening is provided on the firing housing or the holding device, and the shifting rod extends into the opening and is connected to the firing rod to drive the firing rod to move.

[0007] Furthermore, the medical device also includes at least one firing brake that can be selectively clamped on the firing rod to limit the firing of the firing rod.

[0008] Furthermore, each firing rod is provided with a stopper, and the firing brake interferes with the stopper to limit the firing of the firing rod.

[0009] Furthermore, each of the firing rods is provided with two blocks, and a clamping space for clamping the firing brake member is formed between the two blocks.

[0010] Furthermore, the firing brake comprises a clamping portion which interferes with the stopper and a pressing portion which is located at one side of the clamping portion and is used for applying force.

[0011] Furthermore, the clamping portion is an inverted corrugated block, and the inverted corrugated block includes a concave portion, and the concave portion is clamped on the firing rod and interferes with the stopper.

[0012] Furthermore, the clamping portion is a circular block, and an opening is provided on the circular block. The circular block is clamped on the firing rod through the opening and interferes with the stopper.

[0013] Furthermore, the firing brake is arranged on the holding device or the firing device.

[0014] Furthermore, the holding device includes a shell, a driving device arranged in the shell and connected to the firing device, a control circuit connected to the driving device signal to control the driving device, and a first switch and a second switch arranged on the shell and connected to the control circuit signal.

[0015] The beneficial effects of the present invention are as follows: by providing a shearing device and a clamping device, the device has multiple functions. When one of the shearing device and the clamping device is working, the other is retracted in the firing shell, thereby achieving the effect of reducing the time for changing the device and improving work efficiency; the medical device of the present invention has a simple structure and is easy to operate.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the medical device of the present invention.

[0018] Figure 2 FIG. 4 is another schematic diagram of the structure of the medical device of the present invention.

[0019] Figure 3 for Figure 2 A local enlarged schematic diagram of the .

[0020] Figure 4It is another structural schematic diagram of the medical device of the present invention.

[0021] Figure 5 This is another schematic structural diagram of the medical device of the present invention.

[0022] Figure 6 for Figure 4 A local enlarged schematic diagram of the .

[0023] Figure 7 It is a schematic structural diagram of the firing brake of the present invention. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] See also Figures 1 to 3 The medical device in a preferred embodiment of the present invention includes a holding device 1, a clamp device 3, a shearing device 8 and a firing device 2, wherein the clamp device 3 and the shearing device 8 are connected to the holding device 1 through the firing device 2, and the holding device 1 drives the firing device 2 to fire under the action of an external force, and then the firing device 2 drives the clamp device 3 or the shearing device 8 to close, the clamp device 3 includes at least one clamp 31 for placing a ligation clip, the shearing device 8 includes at least one shearing piece 81 for shearing a target tissue, the firing device 2 includes at least two firing rods and a firing shell 20 covered on the outside of the firing rod, the firing rod moves relative to the firing shell 20, the at least two firing rods include at least one first firing rod and at least one second firing rod, one end of at least one of the first firing rods is connected to at least one of the clamps 31, and one end of at least one of the second firing rods is connected to at least one of the shearing pieces 81. In the present invention, the shearing piece 81 is a pair of scissors. Of course, in other embodiments, the shearing piece 81 may also be other objects that can achieve the purpose of shearing, depending on the actual situation.

[0026] Please combine Figures 4 to 6When the firing rod is fired to drive the clamp 31 or the scissors 81 to work, the clamp 31 or the scissors 81 are retracted in the firing housing 20 driven by the firing rod. In this embodiment, the clamp device 3 includes a clamp 31, the shearing device 8 includes a scissors 81, and the firing device 2 includes two firing rods, that is, one end of one of the firing rods is connected to the clamp 31, and one end of the other firing rod is connected to the scissors 81, and each firing rod is driven by the holding device 1 to drive the corresponding clamp 31 or scissors 81 to close. Of course, in other embodiments, the number of firing rods can also be three, four, or even more, and accordingly, the number of the clamps 31 and the number of the scissors 81 can also be increased accordingly, depending on the actual situation, and are not limited here. The clamp 31 is connected to the firing rod and the corresponding clamp 31 is driven by the firing rod to close, so that the ligation clip placed in the clamp device is closed. The scissors 81 are connected to the firing rod and the corresponding scissors 81 are driven by the firing rod to close, so that the scissors 81 cut the target tissue. It is worth noting that when either the clamp 31 or the scissors 81 is working, the other must be retracted into the firing shell 20 to prevent the target tissue from being misoperated and causing serious consequences. For example, when the clamp 31 is working, the scissors 81 are retracted into the firing shell 20 to avoid accidentally cutting the blood vessel; for example, when the scissors 81 are working, the clamp 31 is retracted into the firing shell 20 to avoid accidentally closing the blood vessel.

[0027] The medical device also includes a lever 5 disposed on each of the firing rods, and the lever 5 pushes the firing rod to move relative to the firing housing 20. An opening 13 is provided on the firing housing 20 or the holding device 1, and the lever 5 extends into the opening 13 and is connected to the firing rod to drive the firing rod to move. In this embodiment, the number of the levers 5 is the same as the number of the firing rods, which are both two. Correspondingly, the number of the openings 13 is also two, and each lever 5 passes through each opening 13 and is connected to one of the firing rods. Specifically, one end of the lever 5 is fixedly disposed on the firing rod, and the other end of the lever 5 passes through the opening 13 to facilitate the operator to move it. In order to distinguish, the lever 5 is respectively a first lever and a second lever. When the first lever or the second lever is moved forward, the clamp 31 or the scissors 81 extends to one end of the firing housing 20. The first lever or the second lever is pushed backward, and the clamp 31 or the scissors 81 are retracted into the firing housing 20 .

[0028] In this embodiment, the holding device 1 is in manual mode, which includes a housing 10, a fixed handle 11 connected to the housing 10, and a firing handle 12 arranged on one side of the fixed handle 11. The firing handle 12 is movably arranged on one side of the fixed handle 11 through a pin 121 and moves forward and backward relative to the fixed handle 11. Taking this embodiment as an example, the arrow a in the figure represents the direction of forward movement, and the opposite direction is the direction of backward movement. The firing device 2 is connected to the firing handle 12, and an external force is applied to make the firing handle 12 move toward the fixed handle 11, driving the firing device 2 to move in the opposite direction of the external force, thereby driving the clamp device or shear device to close; applying an external force makes the firing handle 12 move in the direction away from the fixed handle 11, and the firing handle 12 drives the firing device 2 to move in the opposite direction of the external force, thereby driving the clamp device 3 or shear device 8 to open.

[0029] Of course, in other embodiments, the holding device 1 can also be in an electric mode, in which case the holding device 1 includes a driving device disposed in the housing 10 and connected to the firing device, a control circuit connected to the driving device signal to control the driving device, and a first switch and a second switch disposed on the housing and connected to the control circuit signal. The driving device includes a driving motor, a first gear connected to the driving motor, a second gear meshing with the first gear, and a screw connected to the second gear, and the driving device is connected to the firing rod via the screw. When the first switch is pressed, the control circuit controls the driving device to drive the firing rod to move forward; when the second switch is pressed, the control circuit controls the driving device to drive the firing rod to move backward.

[0030] In the present embodiment, the firing device 2 includes two firing rods, namely a first firing rod 21 and a second firing rod 22, one end of the first firing rod 21 is connected to the clamp 31, and one end of the second firing rod 22 is connected to the scissors 81. When an external force is applied to the firing handle 12, the firing handle 12 drives the first firing rod 21 or the second firing rod 22 to fire and then drives the clamp 31 or the scissors 81 to close. In the present embodiment, the other ends of the first firing rod 21 and the second firing rod 22 are provided with a connecting member 7, and the connecting member 7 connects the first firing rod 21 and the second firing rod 22 and is connected to the firing handle 12 through a connecting shaft 71. Of course, in other embodiments, the other ends of the first firing rod 21 and the second firing rod 22 can be directly connected to the firing handle 12 at the same time to achieve the same purpose, which is not limited here and depends on the actual situation.

[0031] The medical device also includes a firing shell 20 covering the outside of the firing rod and a firing brake 62 that can be selectively clamped on at least one of the firing rods to limit the firing of the firing rod. The firing brake 62 can be an object that limits the retraction of the clamp device into the firing shell 20, or it can be an object that limits the extension of the clamp device outside the firing shell 20. The firing brake 62 can be a compression spring with one end fixedly arranged in the firing shell 20 and the other end connected to the firing rod. The elastic force of the compression spring should be small enough so that the firing rod can be retracted into the firing shell 20 or extended out of the firing shell 20 even under the action of external force. The above is just an example and does not make a specific limitation on the firing brake 62. The purpose of designing the firing brake 20 is to prevent the clamp 31 from working when the scissors 81 are working, so the clamp 31 needs to be locked. In order to facilitate the operation of the scissors 81, the clamp 31 and the scissors 81 are misaligned in position, and the best way to misalign is to shrink the clamp 31 into the firing shell 20. The firing brake 62 is arranged on the holding device 1 or the firing device 2, and both play a role in limiting the firing rod. In this embodiment, the firing brake 62 is arranged on the holding device 1. More specifically, the firing brake 62 is arranged on the housing 10. The housing 10 is provided with a through hole 13, and a rotating shaft is arranged in the through hole 13. The firing brake 62 moves up and down relative to the housing 10 through the rotating shaft.

[0032] Wherein, each firing rod is provided with a stopper 61, and the firing brake 62 interferes with the stopper 61 to limit the firing of the firing rod. The firing brake 62 includes a clamping portion 622 that interferes with the stopper 61 and a pressing portion 621 located on one side of the clamping portion 622 and used for applying force. The clamping portion 622 is an inverted corrugated block, and the inverted corrugated block includes a concave portion 6221, and the concave portion 6221 is clamped on the firing rod and interferes with the stopper 61. Of course, in other embodiments, the clamping portion 622 can also be a block of other shapes, depending on the actual situation. For example, the clamping portion 622 can also be a circular block, and an opening is provided on the circular block. The circular block clamps the firing rod through the opening and interferes with the stopper 61 to limit the firing rod, and the opening is provided on one side of the circular block, etc., which are not limited here. As mentioned above, in this embodiment, there are two firing rods, which are connected to the clamp 31 and the scissors 81 respectively, and there are two firing brakes 62, which are respectively arranged on one side of the firing rod. The pressing portion 621 is arranged outside the firing housing 20 to apply external force, and the clamping portion 622 is arranged inside the firing housing 20 to clamp with the firing rod or the stopper 61 on the firing rod. Figure 7In this embodiment, because there are only two firing rods, two firing brakes 62 are provided. The concave portion 6221 of the clamping portion 622 is clamped on the firing rod and abuts against the block 61 to limit the firing rod. Of course, in other embodiments, the clamping portion 622 of the firing brake may also include a concave portion 6221 and a connecting portion 6222 for connecting the concave portion 6221. In the case where there are only two firing rods, the clamping portion 622 only needs to have two concave portions 6221 and a connecting portion 6222 connecting the two concave portions 6221, and the clamping portion 622 is an inverted "W" shape, the clamping portion 622 is connected to the pressing portion 621, and the concave portion 6221 is clamped on the firing rod and abuts against the block 61 to limit the firing rod. For example, when the clamp 31 extends out of the firing housing 20, the scissors 81 are retracted in the firing housing 20, and the position of the clamp device is regarded as the front side. The clamping portion 622 clamps on the rear side of the block 61 on the first firing rod 21 and on the front side of the block 61 on the second firing rod 22 to achieve this purpose.

[0033] Of course, each of the firing rods may also be provided with two blocks 61, a holding space is formed between the two blocks 61, and the firing brake 62 is held in the holding space, and the usage is the same as the above case. However, when the holding portion 622 is an inverted "W" shape, the recessed portion 6221 is held on the firing rod and abuts against the block 61 to limit the firing rod. In this embodiment, the two blocks provided on the first firing rod 21 are respectively called the first block and the second block, and the two blocks provided on the second firing rod 22 are respectively called the third block and the fourth block. When the clamp 31 extends out of the firing housing 20 and the scissors 81 are retracted in the firing housing 20, the holding portion 622 is held in front of the first block on the first firing rod 21 and at the same time is held in front of the fourth block on the second firing rod 22 to achieve this purpose.

[0034] Of course, in other embodiments, the number of the blocks 61 may be other, and the firing brake 62 may be other shapes, depending on the specific circumstances, and no excessive restrictions are made here.

[0035] The medical device also includes a rotating handle 4 which is sleeved on the firing shell 20 and connected to the holding shell 10. When the rotating handle 4 is rotated, the holding device 1 is driven to rotate to adjust the clamping angle, which is convenient for the operator to operate.

[0036] When the medical device of this embodiment is used for operation, if one of the clamps 31 or the scissors 81 is required to be operated during the operation, the operator presses the pressing portion 621 to make the clamping portion 622 move upward and away from the first firing rod 21 and the second firing rod 22, and moves one of the levers 5, for example, the first lever, and then releases the pressing portion 621 to make the clamping portion 622 clamp with the first block and the fourth block to achieve this purpose. The reverse operation is as above and will not be repeated here.

[0037] In summary: the shearing device 8 and the clamping device 3 are provided to provide the device with multiple functions. When one of the shearing device 8 and the clamping device 3 is working, the other is retracted in the firing shell 20, thereby reducing the time for changing the device and improving the working efficiency. The medical device of the present invention has a simple structure and is easy to operate.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A medical device, characterized in that: It includes a holding device, a clamping device, a shearing device and a firing device, wherein the clamping device and the shearing device are connected to the holding device through the firing device, and the holding device drives the firing device to fire under the action of an external force, and then the firing device drives the clamping device or the shearing device to close, the clamping device includes at least one clamp for placing a ligation clamp, the shearing device includes at least one shearing piece for shearing a target tissue, the firing device includes at least two firing rods and a firing shell covering the outside of the firing rods, the firing rods move relative to the firing shell, the at least two firing rods include at least one first firing rod and at least one second firing rod, one end of at least one of the first firing rods is connected to at least one of the clamps, and one end of at least one of the second firing rods is connected to at least one of the shearing pieces; when the first firing rod fires to drive the clamp to work, the shearing piece shrinks within the firing shell driven by the second firing rod.

2. The medical device according to claim 1, characterized in that: The medical device further comprises at least one lever disposed on the firing rod, wherein the lever pushes the firing rod to move relative to the firing housing.

3. The medical device according to claim 2, characterized in that: An opening is provided on the firing housing or the holding device, and the shifting rod extends into the opening and is connected with the firing rod to drive the firing rod to move.

4. The medical device according to claim 1, characterized in that: The medical device further comprises at least one firing stopper which can be selectively clamped on the firing rod to limit the firing of the firing rod.

5. The medical device according to claim 4, characterized in that: A stopper is arranged on each firing rod, and the firing brake interferes with the stopper to limit the firing of the firing rod.

6. The medical device according to claim 4, characterized in that: Two stoppers are arranged on each firing rod, and a clamping space for clamping the firing brake member is formed between the two stoppers.

7. The medical device according to claim 5 or 6, characterized in that: The firing brake comprises a clamping portion which interferes with the stopper and a pressing portion which is located at one side of the clamping portion and is used for applying force.

8. The medical device according to claim 7, characterized in that: The clamping portion is an inverted corrugated block, and the inverted corrugated block includes a concave portion, and the concave portion is clamped on the firing rod and forms an interference with the stopper.

9. The medical device according to claim 7, characterized in that: The clamping portion is a circular block, and an opening is provided on the circular block. The circular block is clamped on the firing rod through the opening and interferes with the stopper.

10. The medical device according to claim 4, characterized in that: The firing brake is arranged on the holding device or the firing device.

11. The medical device according to claim 1, characterized in that: The holding device includes a shell, a driving device arranged in the shell and connected to the firing device, a control circuit connected to the driving device signal to control the driving device, and a first switch and a second switch arranged on the shell and connected to the control circuit signal.

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