CN111265268A - Medical instrument - Google Patents

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 a first rod body part, a second rod body part and a firing force application part; be provided with the inductor on the first shaft part, be provided with the control circuit with inductor signal connection in the handle: the sensor detects the connection state of the second rod body part and the first rod body part and sends a detection signal to the control circuit; the control circuit receives the detection signal and judges whether the second rod body part and the first rod body part are installed or detached according to the detection signal. The sensor and the control circuit are arranged to detect the installation states of the first rod body part and the second rod body part and inform the detection result to an operator, so that the operator can conveniently perform the next operation to ensure that the operation of the operator is error-free.

Description

Medical instrument

Technical Field

The present invention relates to a medical device.

Background

To fully expose the surgical field during surgery, ligation of blood vessels around 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, due to the limitation of the number of clamps, an operator needs to carry out clamping operation for many times, so that the working efficiency is reduced, the operation time is prolonged, the bleeding volume of a patient is increased, and the recovery time of the patient is prolonged. Therefore, the clip applier capable of continuously feeding clips is produced.

In the prior art, the clamping cabin part of some clamp applying forceps for continuously feeding clamps is in a detachable form, so that the difficulty of identifying the installation or detachment state of the clamping cabin becomes the clamp applying forceps of the type.

Disclosure of Invention

The object of the present invention is to provide a medical device that solves the above-mentioned problems of the prior art, which is easy and quick to operate.

In order to achieve the purpose, the invention provides the following technical scheme: a medical instrument comprises a handle for holding and a working head connected with the handle, wherein the working head comprises a first rod body part, a second rod body part and a firing force application part; the first rod body part is provided with an inductor, and the handle is internally provided with a control circuit connected with the inductor by signals:

the sensor detects the connection state of the second rod body part and the first rod body part and sends a detection signal to the control circuit;

the control circuit receives the detection signal and judges whether the second rod body part and the first rod body part are installed or detached according to the detection signal.

Further, the first rod body part comprises a first firing rod and a sleeve sleeved on the first firing rod, the second rod body part comprises a second firing rod connected with the forceps bin assembly and a first boss arranged on the second firing rod, and a first sliding groove is formed in the sleeve; when the first boss slides into the first chute and is clamped with the first chute, the sensor sends a first detection signal to the control circuit.

Further, the first chute is L-shaped, the first boss longitudinally slides into the first chute and rotates to be clamped with the first chute, and the sensor sends a first detection signal to the control circuit.

Furthermore, the first rod body part comprises a first outer sleeve for wrapping the first firing rod, a second sliding groove is formed in one end, far away from the handle, of the first outer sleeve, and the forceps bin assembly comprises a bin clamping seat and a second boss arranged on the bin clamping seat; when the second boss slides into the second chute and is clamped with the second chute, the sensor sends a second detection signal to the control circuit.

Furthermore, the second chute is L-shaped, the second boss longitudinally slides into the second chute and rotates to be clamped with the second chute, and the sensor sends a second detection signal to the control circuit.

Furthermore, a lock catch for limiting the second boss in the second sliding groove is further arranged on the first rod body, the lock catch comprises an installation sleeve arranged between the first outer sleeve and the sleeve and a plug buckle arranged on the installation sleeve, and a slot matched with the plug buckle is arranged on the bin clamping seat; and after the inserting buckle slides into the inserting slot, the inductor sends a third detection signal to the control circuit.

Further, the firing force application part comprises a driving assembly, the driving assembly comprises a driving motor, a first gear connected with the driving motor, a second gear connected with the first gear and a screw rod connected with the second gear, and the screw rod is connected with the first firing rod; the driving motor is in signal connection with the control circuit, and the control circuit controls the driving motor to drive the first firing rod to fire.

Furthermore, the forceps bin assembly further comprises a pair of forceps arranged on one side of the forceps bin seat, a ligation clip placed in the forceps bin seat, and a pushing clip covered on the forceps bin seat and used for pushing the ligation clip to move towards the direction of the forceps, wherein a plurality of ratchets facing the forceps are arranged on the pushing clip, and the ratchets support the ligation clip to push the ligation clip to move towards the forceps under the pushing of the pushing clip.

Further, one side of the second trigger rod is provided with a first protruding block, one side of the pushing clamping piece is provided with a first through hole, the first through hole is sleeved on the first protruding block, and the second trigger rod triggers to drive the pushing clamping piece.

Furthermore, the medical instrument further comprises a driving piece which is arranged on one side of the forceps bin assembly and used for driving the forceps to open or close, the driving piece comprises at least one pull rod connected with the second firing rod and an elastic piece sleeved on the pull rod, a second through hole is formed in one end of the pull rod, the second through hole is sleeved on the first protruding block, and the second firing rod is fired to drive the pull rod.

The invention has the beneficial effects that: the sensor and the control circuit are arranged to detect the installation states of the first rod body part and the second rod body part and inform the detection result to an operator, so that the operator can conveniently perform the next operation to ensure that the operation of the operator is error-free.

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 showing the overall structure of the medical device of the present invention.

Fig. 2 is a partially exploded schematic view of the medical device of the present invention.

Fig. 3 is a partial structural schematic diagram of fig. 1.

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is another exploded view of fig. 3.

Fig. 6 is an exploded view of the second body portion of fig. 1.

Fig. 7 is a schematic view of the construction of the ligating clip of fig. 6.

Fig. 8 is a block diagram of the control circuit.

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 7, the medical instrument in a preferred embodiment of the present invention includes a handle 1 and a working head connected to the handle 1, the working head includes a first rod portion 2, a second rod portion 3 and a firing force applying member for driving the first rod portion 2 and the second rod portion 3, the second rod portion 2 is provided with a forceps compartment assembly, one end of the first rod portion 2 is disposed on the handle 1, and the other end of the first rod portion 2 is detachably connected to the second rod portion 3. The first body portion 2 comprises a first firing bar 21, and the second body portion 3 comprises a second outer sleeve 30 covering the forceps compartment assembly and a second firing bar 31 disposed within the second outer sleeve 30 and connected to the forceps compartment assembly. The first firing bar 21 fires and drives the second firing bar 31 to push the forceps chamber component to ligate the target tissue.

In this embodiment, the handle 1 includes a housing 10, and the firing force applying member includes a control circuit disposed in the housing 10 and a driving assembly disposed in the housing 10, wherein the switch disposed on the housing 10 is disposed in the housing 10. Pressing the switch causes the control circuit driving component to drive the first firing bar 21, and the first firing bar 21 drives the second firing bar 31 to push the forceps compartment component to close the target tissue, so as to control the opening or closing of the forceps 4. The switch comprises a first switch 14 and a second switch 15, the first switch 14 controls the first firing rod 21 to move towards the clamp 4 to drive the clamp 4 to open, and the second switch 15 controls the first firing rod 21 to move towards the handle 1 to drive the clamp 4 to close.

Indeed, in other embodiments, the firing force application member may be a force application handle disposed on one side of the handle 1, and the force application handle may be movable back and forth relative to the handle 1. The force application handle is connected with the first firing rod 21 and drives the first firing rod 21 to fire. The force application handle moves towards the direction of the clamp 4 to control the clamp 4 to open, and moves away from the clamp 4 to control the clamp 4 to close.

The firing force application member mainly drives the first firing bar 21 to fire so as to drive the second firing bar 31 to fire, and may be in a manual mode or an electric mode, which is determined according to actual conditions and is not limited herein.

In this embodiment, the driving assembly includes a driving motor, a first gear 11 connected to the driving motor, a second gear 12 engaged with the first gear 11, a nut connected to the second gear 12, and a bolt 13 threadedly connected to the nut, where the driving motor has an output shaft, the first gear 11 is disposed on the output shaft, and the second gear 12 is sleeved on the nut. The output shaft transmits the speed and torque output by the driving motor to the first gear 11 and the second gear 12, and converts the radial rotation into the axial rotation. The drive assembly further comprises a transition block, by means of which the bolt 13 is connected with the first firing rod 21. The driving motor is in signal connection with the control circuit, and the control circuit controls the driving motor to drive the first firing rod to fire.

The first rod body part 2 comprises a first firing rod 21 and a sleeve 22 sleeved on the first firing rod 21, a first sliding groove 221 is formed in the sleeve 22, a first boss 31 is arranged on one side, close to the first rod body part 2, of the second firing rod 31, and the first boss 31 slides into the first sliding groove 221 and is clamped with the first sliding groove 221 so that the first rod body part 2 is connected with the second rod body part 3.

The first body 2 further comprises a first outer sleeve 20 for covering the first firing rod 21, a second sliding groove 231 is formed in one end, away from the handle 1, of the first outer sleeve 20, the magazine clamping assembly comprises a magazine clamping seat 32 and a second boss 321 arranged on the magazine clamping seat 32, and the second boss 321 slides into the second sliding groove 231 and is clamped with the second sliding groove 231 so that the first body 2 is connected with the second body 3.

The first outer sleeve 20 further comprises an extension portion 23, the extension portion 23 is connected with the first outer sleeve 20 through a connecting member 26, and the first sliding groove 221 is disposed on the extension portion 23. In this embodiment, the second shaft portion 3 further includes a second outer sleeve 30 covering the forceps housing assembly and the second firing bar 31, and the forceps housing seat 32 is disposed at one end of the second outer sleeve 30 in an exposed manner.

In this embodiment, the first sliding slot 221 and the second sliding slot 231 are L-shaped, the first boss 311 longitudinally slides into the first sliding slot 221 and transversely rotates to be retained with the first sliding slot 221, and the second boss 321 longitudinally slides into the second sliding slot 231 and transversely rotates to be retained with the second sliding slot 231, so that the first rod portion 2 and the second rod portion 3 are connected. Indeed, in other embodiments, the shapes of the first sliding slot 221 and the second sliding slot 231 may be other, as long as the first rod portion 2 and the second rod portion 3 can be connected and abutted, and the shape is not limited herein.

The first rod body is further provided with a lock catch 24 which limits the second boss 321 in the second sliding groove 231, the lock catch 24 comprises an installation sleeve 242 arranged between the first outer sleeve 20 and the sleeve 22 and a plug buckle 241 arranged on the installation sleeve 242, and the cartridge holder 32 is provided with a slot 322 matched with the plug buckle 241. The first lever body 2 further includes a stopper 25 for driving the insertion buckle 241 to move toward the insertion slot 322. The stop member 25 is a first elastic member, the mounting sleeve 242 has a rear end surface facing the handle 1, and the first elastic member 25 abuts against the rear end surface. In this embodiment, the first elastic member 25 is a first spring.

Mounting the second shaft portion 3 to the first shaft portion 2: the inserting buckle 241 abuts against the opening of the second sliding slot 231, and when the second boss 321 slowly slides into the second sliding slot 231, the inserting buckle 241 is pushed by the second boss 321 and compresses the first spring 25 to move towards the handle 1. The second boss 321 is rotated counterclockwise to be engaged with the second sliding slot 231, and at this time, the inserting buckle 241 slides into the inserting slot 322 of the cartridge seat 32. Detaching the second shaft portion 3 from the first shaft portion 2: the lock catch 24 is manually pressed to move in the direction of the handle, and simultaneously the cartridge holder 32 is rotated clockwise so that the second boss 321 is no longer held by the second sliding slot 231, and the second boss 321 slides out of the second sliding slot 231 under the pushing of the first spring 25. The embodiment achieves the purpose of firm installation through the clamping mode of multiple connections. Indeed, in other embodiments, the first body portion 2 and the second body portion 3 may be detachably connected by screwing or other means, as the case may be.

The forceps bin assembly further comprises a ligation clip 34 placed in the forceps bin seat 32, a pushing clip 35 which is covered on the forceps bin seat 32 and used for pushing the ligation clip 34 to move, and a forceps 4 arranged on one side of the forceps bin seat 32. When the clamp 4 is closed, the second firing bar 31 drives the pushing clip piece 35 to push the ligating clip 34 to move towards the clamp 4. The push-clip 35 is provided with a plurality of ratchet teeth facing the clamp 4, and the ratchet teeth support against the ligation clip 34 to push the ligation clip 34 to move towards the clamp 4 under the push of the push-clip 35.

The ligating clip 34 includes a first clip arm 341, a second clip arm 342, and a connecting portion 343 for connecting the first clip arm 341 and the second clip arm 342. The first clamping arm 341 has a third protrusion 344 formed thereon for supporting the ratchet to push the clip 34 to move toward the clamp 4 in the magazine base 32. In this embodiment, the third protrusion 344 has a slope extending along the moving direction of the ligating clip 34 in the magazine base 32, and the third protrusion 344 is cylindrical and disposed at an end of the first clip arm 341 away from the connecting portion 343. When the clip pushing piece 35 moves towards the direction of the clamp 4, the ratchet wheel supports against the ligation clip 34; when the clip pushing piece 35 moves toward the handle 1, the ratchet does not interfere with the ligating clip 34.

One side of the second firing rod 31 is provided with a first projection 312, one side of the pushing and clamping piece 35 is provided with a first through hole 351, the first through hole 351 is sleeved on the first projection 312, and the second firing rod 31 is fired to drive the pushing and clamping piece 35.

The medical instrument further comprises a driving piece which is arranged on one side of the forceps bin assembly and used for driving the forceps 4 to open or close, the driving piece comprises at least one pull rod 33 connected with the second firing rod 31 and a second elastic piece 332 sleeved on the pull rod 33, a second through hole 331 is formed in one end of the pull rod 33, the second through hole 331 is sleeved on the first bump 312, and the second firing rod 31 is fired to drive the pull rod 33. The other side of the pull rod 33 is provided with a second protruding block 333, the clamp 4 is provided with a third through hole 43, the third through hole 43 is sleeved on the second protruding block 333, and the pull rod 33 moves to control the clamp 4 to open or close.

In this embodiment, the clamp 4 includes a first jaw 41 and a second jaw 42, the first jaw 41 and the second jaw 42 are both provided with a third through hole 43, the number of the pull rods 33 is two, the two pull rods are respectively a first pull rod disposed on one side of the push-clamping piece 35 and a second pull rod disposed on one side of the clamping seat 32 away from the push-clamping piece 35, one side of the first pull rod and one side of the second pull rod are simultaneously provided with a second bump 333, the first pull rod is connected with the first jaw 41, the second pull rod is connected with the second jaw 42, and the connection manner is as above, which is not described herein again. The cartridge clamping seat 32 is further provided with a third projection 323, and the clamp 4 is provided with a fourth through hole 44 connected with the third projection 323.

In this embodiment, the second through hole 331 and the third through hole 43 are U-shaped holes, the second firing bar 31 moves toward the clamp 4, and the elastic member 25 drives the pull rod 33 to move toward the clamp 4 by its elastic force to drive the clamp 4 to open. It is needless to say that the shapes of the second through hole 331 and the third through hole 43 may be other, depending on the actual situation. In this embodiment, the second elastic member 332 is a second spring.

When the forceps bin assembly is in an initial state, the second firing rod 31 is located at the leftmost position, the second firing rod 31 drives the pull rod 33 to compress the second spring 332 on the pull rod 33, so that the pull rod 33 is also located at the leftmost position, and the second projection 333 slides to the leftmost end of the third through hole 43 to pull the forceps 4 to be closed. When the clamp is sent, the second firing rod 31 is fed for a certain stroke towards the clamp 4, the second spring 332 on the pull rod 33 is released, and the second spring 332 releases to push the pull rod 33 to feed towards the clamp 4, so that the clamp 4 is pushed to open. Then the second firing rod 31 continues to feed towards the clamp 4, so that the ratchet teeth on the pushing clip piece 35 contact with the third bosses 323 on the ligation clips 34 and push all the ligation clips 34 to feed towards the clamp 4, when the first ligation clip 34 approaches the clamp 4, the ligation clip 34 is pushed into the clamp 4, the clip feeding is finished, and the second firing rod 31 stops feeding. The second firing bar 31 is then fed in a reverse direction away from the jaws 4, which moves the pull rod 33 and pulls the jaws 4 closed. Repeating the above steps to finish the ligation of the target tissue for a plurality of times.

The medical apparatus further comprises a rotating handle 5 used for connecting the first rod body 2 and the handle 1, and the angle of the clamp can be adjusted by adjusting the rotating handle 5.

Referring to fig. 8, the first shaft portion 2 is provided with an inductor 161. In this embodiment, an inductor 161 is disposed at an end of the first rod portion connected to the second rod portion, and the control circuit is in signal connection with the inductor 161:

the sensor 161 is configured to detect a connection state between the second shaft portion 3 and the first shaft portion 2 and send a detection signal to the control circuit. The sensor 161 may be a position sensor or other sensors, as the case may be.

The control circuit receives the detection signal and judges the mounting or dismounting state of the second rod part 3 and the first rod part 2 according to the detection signal.

In this embodiment, the control circuit further includes a controller 16, and the sensor 161 is in signal connection with the controller 16. In this embodiment, when the first boss 31 slides into the first sliding groove 221 and is clamped with the first sliding groove 221, the sensor 161 sends a first detection signal to the control circuit. More specifically, the first sliding groove 221 is L-shaped, the first boss 31 longitudinally slides into the first sliding groove 221 and rotates to be clamped with the first sliding groove 221, and the sensor 161 sends a first detection signal to the controller 16. The controller 16 receives the first detection signal and determines that the first firing bar 21 is connected to the second firing bar 31.

When the second boss 321 slides into the second sliding slot 231 and is clamped with the second sliding slot 231, the sensor 161 sends a second detection signal to the control circuit. More specifically, the second sliding groove 231 is L-shaped, the second boss 321 longitudinally slides into the second sliding groove 231 and rotates to be clamped with the second sliding groove 231, and the sensor 161 sends a second detection signal to the controller 16. The controller 16 receives the second detection signal and determines that the first outer sleeve 20 is connected to the cartridge holder 32.

After the buckle 241 slides into the slot 322, the sensor 161 sends a third detection signal to the controller 16. The controller 16 receives the third detection signal and determines that the latch 24 is connected to the slot 322. It is to be noted that when the first and second shaft portions 2 and 3 are not mounted, the sensor 161 does not send a detection signal to the controller 16 because it does not detect a signal.

The control circuit further comprises a battery module 163 connected with the controller 16 through signals and used for detecting the electric quantity of the medical appliance, a battery for providing the electric quantity for the medical appliance is further arranged in the handle, and a battery electric quantity value range is preset in the controller. The battery module 163 detects the battery and sends a battery signal to the controller 16, and the controller 16 receives the battery signal and compares the battery signal with the battery power value range to determine the battery power.

The control circuit further includes a display module 162 in signal connection with the controller 16 for displaying the mounting or dismounting state of the medical device and the battery level.

The handle 1 is provided with a display. The controller 16 receives and processes the first detection signal and/or the second detection signal and/or the third detection signal and/or the battery signal, and displays a processed result on a display to inform an operator of an installation state and/or a battery power state.

In another embodiment, the handle 1 is provided with at least one LED lamp which displays the installation state and/or the battery charge state by changing color. In this embodiment, the LED lamp is provided with 1, and the installation status shows for the yellow light, and battery power state shows for the red light. Indeed, the number of the LED lamps can be other, and the LED lamps are arranged according to actual conditions. The controller 16 receives and processes the first detection signal and/or the second detection signal and/or the third detection signal and/or the battery signal, and displays a processed result on a display to inform an operator of an installation state and/or a battery power state.

In summary, the following steps: by arranging the sensor 161 and the control circuit, the installation state of the first lever part and the second lever part is detected, and the detection result is informed to an operator, so that the operator can conveniently perform the next operation to ensure that the operator is free from errors.

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 (10)

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 a first rod body part, a second rod body part and a firing force application part; the first rod body part is provided with an inductor, and the handle is internally provided with a control circuit connected with the inductor by signals:

the sensor detects the connection state of the second rod body part and the first rod body part and sends a detection signal to the control circuit;

the control circuit receives the detection signal and judges whether the second rod body part and the first rod body part are installed or detached according to the detection signal.

2. The medical instrument of claim 1, wherein the first rod portion comprises a first firing bar and a sleeve disposed over the first firing bar, the second rod portion comprises a second firing bar coupled to the forceps holder assembly and a first boss disposed on the second firing bar, and the sleeve has a first sliding slot; when the first boss slides into the first chute and is clamped with the first chute, the sensor sends a first detection signal to the control circuit.

3. The medical device of claim 2, wherein the first slot is L-shaped, the first boss longitudinally slides into the first slot and rotates to engage with the first slot, and the sensor sends a first detection signal to the control circuit.

4. The medical instrument of claim 2, wherein the first rod portion comprises a first outer sleeve for covering the first firing rod, wherein a second sliding slot is disposed at an end of the first outer sleeve away from the handle, and the forceps cartridge assembly comprises a cartridge holder and a second boss disposed on the cartridge holder; when the second boss slides into the second chute and is clamped with the second chute, the sensor sends a second detection signal to the control circuit.

5. The medical device of claim 4, wherein the second slot is L-shaped, the second boss slides longitudinally into the second slot and rotates to engage the second slot, and the sensor sends a second detection signal to the control circuit.

6. The medical apparatus according to claim 4, wherein the first rod is further provided with a lock for limiting the second boss in the second sliding groove, the lock comprises a mounting sleeve arranged between the first outer sleeve and the sleeve and a plug buckle arranged on the mounting sleeve, and the cartridge holder is provided with a slot matched with the plug buckle; and after the inserting buckle slides into the inserting slot, the inductor sends a third detection signal to the control circuit.

7. The medical instrument of claim 1, wherein said firing force applicator includes a drive assembly including a drive motor, a first gear coupled to said drive motor, a second gear coupled to said first gear, and a threaded rod coupled to said second gear, said threaded rod coupled to said first firing bar; the driving motor is in signal connection with the control circuit, and the control circuit controls the driving motor to drive the first firing rod to fire.

8. The medical instrument of claim 4, wherein the magazine assembly further comprises a pair of pliers disposed on one side of the magazine base, a ligation clip disposed in the magazine base, and a pushing clip covering the magazine base and configured to push the ligation clip to move in a direction of the pliers, wherein the pushing clip is provided with a plurality of ratchet teeth facing the pliers, and the ratchet teeth abut against the ligation clip to push the ligation clip to move in a direction of the pliers under the pushing of the pushing clip.

9. The medical instrument of claim 8, wherein a first protrusion is disposed on one side of the second firing bar, a first through hole is disposed on one side of the push clip piece, the first through hole is disposed on the first protrusion, and the second firing bar is fired to drive the push clip piece.

10. The medical instrument as claimed in claim 9, further comprising a driving member disposed at one side of the forceps holder assembly for driving the forceps to open or close, wherein the driving member comprises at least one pull rod connected to the second firing rod and an elastic member sleeved on the pull rod, one end of the pull rod is provided with a second through hole, the second through hole is sleeved on the first protrusion, and the second firing rod is fired to drive the pull rod.

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