CN211723272U - Endoscopic surgical instrument - Google Patents
Endoscopic surgical instrument Download PDFInfo
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- CN211723272U CN211723272U CN201921868545.9U CN201921868545U CN211723272U CN 211723272 U CN211723272 U CN 211723272U CN 201921868545 U CN201921868545 U CN 201921868545U CN 211723272 U CN211723272 U CN 211723272U
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- bending
- direction bending
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- transmission device
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Abstract
The utility model provides an endoscopic surgical instrument, which comprises a working end, a holding part, a rotary control seat and a first direction bending transmission device; the working end comprises a first direction bending part; the holding part comprises a first direction bending control device; the rotating control seat drives the working end to rotate in a second direction relative to the holding part; the first direction bending transmission device is connected with the first direction bending control device, the first direction bending transmission device is connected with the rotary control seat, and the first direction bending transmission device is connected with the first direction bending part to drive the first direction bending part to bend in the first direction. Therefore, the posture of the operator holding the holding part is unchanged, accordingly, the external wiring cannot be wound, the other hand rotates the rotary control seat to enable the whole working end to rotate in the second direction, and the first-direction bending transmission device is in a separated design with the holding part and is fixedly connected with the rotary control seat, so that the problem of winding of an additional internal component caused by the rotation of the first-direction bending transmission device is avoided.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to an endoscope operation instrument.
Background
An endoscope is a medical instrument commonly used in minimally invasive surgery, and when the internal organs of a patient feel uncomfortable, doctors commonly use the endoscope to check or treat the internal organs of the patient. How to obtain a better visual field is a technical problem to be solved by the endoscope.
Referring to fig. 1 and 2, a flexible endoscope in the prior art includes a handheld component 01 and a working end 02 connected with the handheld component 01 and used for entering a human body, the handheld component 01 includes a housing 03, a mechanical control component bent left and right is disposed in the housing 03, and the flexible endoscope mainly includes a rotary disk 04 hinged on the housing 03, a shift lever 05 fixedly connected with the rotary disk 04, the shift lever 05 penetrates out of the housing 03, the rotary disk 04 is provided with control lines, the control lines are respectively disposed on two sides of the rotary disk as a left-bending control line 06 and a right-bending control line 07, the foremost end (i.e., reaching a focus) of the working end 02 has a bendable section, namely, a bending section 08, and the left-bending control line 06 and the right-bending control line. As shown in fig. 1 and fig. 2, when the shift lever 05 is shifted upwards, the shift lever 05 drives the turntable 04 to rotate clockwise, the turntable 04 drives the left-turning control line 06 to move backwards (i.e. to the handheld part 01) (similar to belt transmission), and the left-turning control line 06 drives the bending part 08 to bend a to the left; when the shifting lever 05 is shifted downwards, the shifting lever 05 drives the rotary table 04 to rotate anticlockwise, the rotary table 04 drives the right-turning control line 07 to move backwards (namely towards the handheld part 01) (similar to belt transmission), and the right-turning control line 06 drives the bent part 08 to bend rightwards B. Accordingly, the prior art flexible endoscopes can only make a leftward bend a and a rightward bend B as shown in the figures.
The prior art has the technical problem of how to expand the visual field range of the endoscope and provide a holding posture which is comfortable to operate.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an endoscopic surgery instrument, its aim at: on the basis of not reducing the man-machine engineering performance of control, can let the endoscope rotate simultaneously and buckle, further expand the field of vision scope of endoscope.
In order to achieve the above object, the present invention provides an endoscopic surgical instrument, comprising:
the working end comprises a first direction bending part;
the holding part comprises a first-direction bending control device;
the rotating control seat drives the working end to rotate in a second direction relative to the holding part;
the first direction bending transmission device is connected with the first direction bending control device, the first direction bending transmission device is connected with the rotation control seat, and the first direction bending transmission device is connected with and drives the first direction bending part to bend in the first direction.
Preferably, the holding part comprises a holding shell, and a first-direction toggle groove is formed in the holding shell;
the first-direction bending control device comprises a shifting lever, a shifting fulcrum and a pull rod, the shifting lever comprises a pressing part, a connecting rod part and a shifting lever fulcrum, the connecting rod part comprises a sliding groove, the pull rod comprises a sliding block, the shifting fulcrum is rotatably connected with the shifting lever fulcrum, the shifting fulcrum is fixedly connected with the holding shell, the pressing part penetrates through the first-direction shifting groove, and the sliding block is slidably connected with the sliding groove.
Preferably, the first direction bending transmission device comprises a pulling rack, a connecting gear, a first bending rack, a second bending rack, a first bending control line and a second bending control line;
the pulling rack comprises a rotating hole, the pull rod comprises a rotating shaft, and the rotating hole is sleeved on the rotating shaft;
the connecting gear comprises a first gear and a second gear, the first gear is meshed with the pulling rack, the second gear is meshed with the first bending rack and the second bending rack, and the first bending rack and the second bending rack are oppositely arranged on two sides of the second gear;
the first bending rack pulls the first bending control line, and the second bending rack pulls the second bending control line;
the first bending control line and the second bending control line are respectively connected with the first direction bending part.
Preferably, the first direction bending transmission device comprises a transmission mounting plate, and the transmission mounting plate is fixedly connected with the rotation control seat.
Preferably, the first direction bending transmission device comprises a connecting gear, the connecting gear is mounted on the transmission mounting plate, and the connecting gear rotates around the axis of the connecting gear.
Preferably, a rotating assembly is arranged between the holding part and the rotating control seat, the rotating assembly comprises an annular protrusion and an annular clamping groove, the annular protrusion is connected with the annular clamping groove in an embedded manner, and the annular protrusion or the annular clamping groove is arranged on the holding part or the rotating control seat.
Compared with the prior art, the utility model provides an endoscopic surgery apparatus, include: the working end comprises a first direction bending part; the holding part comprises a first-direction bending control device; the rotating control seat drives the working end to rotate in a second direction relative to the holding part; the first direction bending transmission device is connected with the first direction bending control device, the first direction bending transmission device is connected with the rotation control seat, and the first direction bending transmission device is connected with and drives the first direction bending part to bend in the first direction. Therefore, under the condition that the posture of the holding part held by an operator is not changed, corresponding external wiring cannot be wound (relatively fixed), the other hand rotates the rotary control seat to enable the whole working end to rotate in the second direction, the relative position of the first-direction bending transmission device and the design of the holding part body and the design of the fixed connection of the rotary control seat are fixed, and the problem of winding of additional internal components caused by the rotation of the first-direction bending transmission device is avoided. Therefore, the foremost end (the first direction bending part) of the working end can be folded in the first direction bending motion and the second direction rotation without interference, and the foremost end of the working end can be rotated by 360 degrees and bent in any direction angle, so that the visual field range of the endoscope is expanded.
Drawings
Fig. 1 is a schematic view showing a connection and a use state of a flexible endoscope according to the prior art.
Fig. 2 is a partially enlarged view showing a connection diagram and a use state diagram of a flexible endoscope according to the related art.
Fig. 3 is a schematic view of a coupling structure of the endoscopic surgical instrument according to the present invention.
Fig. 4 is a sectional view of a rotating assembly structure of an embodiment of the endoscopic surgical device of the present invention, and a partially enlarged schematic view of the rotating assembly structure.
Fig. 5 is a schematic view showing a state of use of the endoscopic surgical instrument according to the present invention, in which the endoscopic surgical instrument is bent in the first direction (in one direction).
Fig. 6 is a schematic view showing a second direction rotation operation state (a composite motion view of driving the first direction bending) of the endoscopic surgical instrument according to the present invention.
Reference numerals indicate the same.
The prior art is as follows:
hand-held part 01
Working end 02
Shell 03
Left bend control line 06
Right bend control line 07
A bent part 08
Bend to the left A
Bending B to the right;
the utility model discloses:
working end 1
First direction bent part 11
First direction bending control device 21
Driving lever 211
Toggle fulcrum 212
Pull rod 213
Pressing part 214
Connecting rod part 215
Toggle lever fulcrum 216
Chute 217
Slider 218
Rotating shaft 219
First direction toggle groove 23
First direction bending transmission device 4
Pulling rack 41
Rotating hole 411
Connecting gear 42
First gear 421
Second gear 422
First bending rack 43
Second bent rack 44
First bending control line 45
Second bend control line 46
Rotating assembly 5
Second direction rotation C
The first direction bend D (or E).
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 3, the present invention provides an endoscopic surgical instrument, comprising: the working end 1 comprises a first direction bending part 11; a holding part 2, wherein the holding part 2 comprises a first direction bending control device 21; the rotating control seat 3 drives the working end 1 to rotate in a second direction C relative to the holding part 2; the first direction bending transmission device 4 is connected with the first direction bending control device 21, the first direction bending transmission device 21 is connected with the rotation control base 3, and the first direction bending transmission device 4 is connected with and drives the first direction bending part 11 to perform first direction bending D (or E). In view of the above, can realize that first direction is buckled D (or E) and second direction and is rotated C mutual independent motion to the drive disk assembly of two movements does not interfere, has finally realized the combined motion of two direction movements, thereby makes the foremost end of work end 1 can 360 omnidirectional rotations and buckle, has expanded the field of vision.
The holding part 2 comprises a holding shell 22, and a first direction toggle groove 23 is arranged on the holding shell 22. The first direction bending control device 21 includes a shift lever 211, a shift fulcrum 212, and a pull rod 213, where the shift lever 211 includes a pressing portion 214, a connecting rod portion 215, and a shift lever fulcrum 216, the connecting rod portion 215 includes a sliding slot 217, the pull rod 213 includes a sliding block 218, the shift fulcrum 212 is rotatably connected to the shift lever fulcrum 216, the shift fulcrum 212 is fixedly connected to the holding housing 22, the pressing portion 214 penetrates through the first direction shift slot 23, and the sliding block 218 is slidably connected to the sliding slot 217. Accordingly, the pressing movement of the pressing portion 214 is converted into the vertical movement of the pull rod 213 by the lever mechanism or the link slider mechanism.
The first direction bending transmission device 4 comprises a pulling rack 41, a connecting gear 42, a first bending rack 43, a second bending rack 44, a first bending control line 45 and a second bending control line 46; the pulling rack 41 comprises a rotating hole 411, the pull rod 213 comprises a rotating shaft 219, and the rotating hole 411 is sleeved on the rotating shaft 219; the connecting gear 42 comprises a first gear 421 and a second gear 422, the first gear 421 is engaged with the pulling rack 41, the second gear 422 is engaged with the first bending rack 43 and the second bending rack 44, and the first bending rack 43 and the second bending rack 44 are oppositely arranged on two sides of the second gear 422; the first bending rack 43 pulls the first bending control line 45, and the second bending rack 44 pulls the second bending control line 46; the first bending control line 45 and the second bending control line 46 are respectively connected to the first direction bending part 11. Accordingly, firstly, the first direction bending transmission device 4 and the first direction bending control device 21 are connected in a rotating manner, that is, the control wires 45 and 46 are not fixedly connected with the holding shell 22, and the mechanical structure can ensure that the control wires 45 and 46 are not wound; secondly, two coaxial gears are used as a transmission gear train, the pull rod 213 moves up and down to drive the pull rack 41 to move up and down, thereby toggling the first gears 421 and 422 to rotate, further engaging and toggling the first bending rack 43 and the second bending rack 44 to move up and down, and the arrangement on the two sides of the second gear 422 makes the first bending rack 43 and the second bending rack 44 move up and down in opposite directions, so that one of the first bending control line 45 and the second bending control line 46 is sent to the front end (focus end, first direction bending part 11) and one is collected to the back end (holding part 2), the first bending control line 45 and the second bending control line 46 are respectively connected to the first direction bending portion 11, a pull hook point is disposed on the first direction bending portion 11, one end of the first bending control line 45 and one end of the second bending control line 46 are connected to the pull hook point, this enables an independent bending movement D (or E) of the first direction bend 11.
The first direction bending transmission device 4 comprises a transmission mounting plate 47, and the transmission mounting plate 47 is fixedly connected with the rotation control base 3. Accordingly, it is possible to rotate the first direction bending transmission device 4 (not considering the movement of the internal transmission mechanism, and the whole) together with the rotation control base 3, and the relative positions of the components are not changed when the rotation control base rotates the C.
The first direction bending transmission device 4 comprises a connecting gear 42, the connecting gear 42 is mounted on the transmission mounting plate 47, and the connecting gear 42 rotates around the axis of the connecting gear 42. The pulling rack 41, the first bending rack 43, the second bending rack 44, the first bending control line 45 and the second bending control line 46 are movably connected to the mounting plate 47, for example, disposed in a guide slot fixedly connected to the transmission mounting plate 47.
Referring to fig. 4, a rotating component 5 is included between the holding portion 2 and the rotating control seat 3, the rotating component 5 includes an annular protrusion 51 and an annular slot 52, the annular protrusion 51 is engaged with the annular slot 52, and the annular protrusion 51 or the annular slot 52 is disposed on the holding portion 2 or the rotating control seat 3. In the embodiment of the structure shown in fig. 4, the transmission mounting plate 47 and the rotation control base 3 are fixedly connected into a whole, the annular locking groove 52 is provided on the rotation control base 3, and the annular protrusion 51 is provided on the grip portion 2 at a portion of the grip portion 2 close to the rotation control base 3, the annular locking groove 52 or the annular protrusion 51 can be provided in a split manner, so that the annular protrusion 51 is embedded in the annular locking groove 52, and the annular protrusion 51 as a part of the grip portion 2 drives the grip portion 2 to rotate relative to the rotation control base 3. Thereby, the rotation C between the grip 2 and the rotation control base 3 can be realized.
The above is the main technical solution of the embodiments provided by the present invention, showing the connection relationship between the components.
The following describes the use of the endoscopic surgical instrument and the technical effects achieved by the present invention with reference to fig. 5 and 6.
Referring to fig. 5, the present invention is shown in use performing a first direction bending D (or E) motion. When the pressing portion 214 of the lever 211 is pressed downward, the lever principle drives the connecting rod portion 215 to rotate clockwise around the toggle fulcrum 212 (the lever fulcrum 216), the slider 218 slides in the sliding slot 217, the slider 218 is a portion of the pull rod 213 that drives the pull rod 213 to move upward, the structure that the rotating shaft 219 is sleeved through the rotating hole 411 drives the pulling rack 41 to move upward, the rack-and-pinion engagement motion drives the first gear 421 to move counterclockwise because the first gear 421 and the second gear 422 are made to be coaxial as a whole, the second gear 422 also moves counterclockwise to drive the first bending rack 43 to move downward and the second bending rack 44 to move upward, accordingly, the first bending control line 45 is fed forward (the first direction bending portion 11), the second bending control line 46 is retracted backward (the holding portion 2), such a motion drives the first direction bending portion 11 to bend rightward by the pulling force of the rope, i.e. one of the unidirectional E in the first direction bend. The directions generally include two opposite directions, e.g., east to west, south to north, clockwise to counterclockwise, X-axis positive to negative with respect to X-axis, left to right. On the contrary, if the shift lever 211 is pulled up, the first direction bending portion 11 can be bent to the left, i.e. one of the single directions D in the first direction bending can be achieved.
Referring to fig. 6, it shows that the second direction rotation C motion is performed when the utility model is used, and the situation that the second direction rotation C motion is superimposed without the first direction bending, the first direction bending D and the first direction bending E is given. The second-direction rotation C is counterclockwise rotation as viewed from the grip portion as shown in fig. 6, and accordingly, the second-direction rotation C may also be clockwise rotation. The rotation control seat 3 rotates relative to the holding shell 22 of the holding part 2, the structure of the rotation axis 219 is sleeved by the rotation hole 411, the pull rod 213 is disposed on the rotation axis, the transmission mounting plate 47 is fixedly connected with the rotation control seat 3, such a structure can ensure that, when the second direction rotation C is performed, the relative position of the transmission part of the first direction bending transmission device 4 is unchanged, the position of the first direction bending part 11 is unchanged, and the pull rod 213 in the first direction bending control device 21 can be rotated, so that the working end 1 is integrally driven to rotate by the rotation control seat 3 under the condition that the posture of holding the holding part 2 is unchanged. The hand holding posture is not changed, so that the ergonomic advantage is brought, and the grip part 2 comprises a plurality of transmission cables such as cables and optical cables, and the like, so that the twisting is not caused. Moreover, the position of the first direction bending transmission device 4 relative to the first direction bending part 11 is unchanged, so that the movement of the first direction bending D (or E) is not influenced, and the non-interference superposition of the movement of the first direction bending D (or E or non-bending) and the rotation C in the second direction is realized.
The utility model discloses the technological effect that can reach lies in: under the condition that the posture of the holding part 2 is held by an operator (doctor) is not changed, corresponding external wiring cannot be wound (relatively fixed and immovable), the other hand rotates the rotary control seat 3 to enable the whole working end 1 to rotate in the second direction, the first direction bending transmission device 4 and the holding part 2 are designed to be separated and fixedly connected with the rotary control seat 3, and the problem that additional internal components are wound due to the rotation of the first direction bending transmission device 4 is avoided. Moreover, by adopting the endoscopic surgical instrument provided by the present invention, the foremost end (first direction bending portion 11) of the working end can superpose the first direction bending movement D (or E) and the second direction rotation C without interference, and the foremost end 11 of the working end 1 can rotate the C by 360 degrees and bend the D (or E) by any direction angle, thereby enlarging the visual field of the endoscope.
The above-mentioned embodiments and the accompanying drawings are only illustrative for explaining the technical solution and the technical effects of the present invention, and are not intended to limit the present invention. It is to be understood that modifications and variations may be made in the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (6)
1. An endoscopic surgical instrument, comprising:
the working end comprises a first direction bending part;
the holding part comprises a first-direction bending control device;
the rotating control seat drives the working end to rotate in a second direction relative to the holding part;
the first direction bending transmission device is connected with the first direction bending control device, the first direction bending transmission device is connected with the rotation control seat, and the first direction bending transmission device is connected with and drives the first direction bending part to bend in the first direction.
2. The endoscopic surgical instrument of claim 1,
the holding part comprises a holding shell, and a first-direction toggle groove is formed in the holding shell;
the first-direction bending control device comprises a shifting lever, a shifting fulcrum and a pull rod, the shifting lever comprises a pressing part, a connecting rod part and a shifting lever fulcrum, the connecting rod part comprises a sliding groove, the pull rod comprises a sliding block, the shifting fulcrum is rotatably connected with the shifting lever fulcrum, the shifting fulcrum is fixedly connected with the holding shell, the pressing part penetrates through the first-direction shifting groove, and the sliding block is slidably connected with the sliding groove.
3. The endoscopic surgical instrument of claim 2,
the first direction bending transmission device comprises a pulling rack, a connecting gear, a first bending rack, a second bending rack, a first bending control line and a second bending control line;
the pulling rack comprises a rotating hole, the pull rod comprises a rotating shaft, and the rotating hole is sleeved on the rotating shaft;
the connecting gear comprises a first gear and a second gear, the first gear is meshed with the pulling rack, the second gear is meshed with the first bending rack and the second bending rack, and the first bending rack and the second bending rack are oppositely arranged on two sides of the second gear;
the first bending rack pulls the first bending control line, and the second bending rack pulls the second bending control line;
the first bending control line and the second bending control line are respectively connected with the first direction bending part.
4. The endoscopic surgical instrument of claim 1, wherein said first directional bend actuator comprises a drive mounting plate fixedly connected to said rotation control mount.
5. An endoscopic surgical instrument as defined in claim 4, wherein said first directional bend transmission means includes a connecting gear mounted on said transmission mounting plate, said connecting gear rotating about its axis.
6. The endoscopic surgical instrument of claim 1, wherein a rotation component is disposed between the grip portion and the rotation control base, the rotation component comprises a ring-shaped protrusion and a ring-shaped slot, the ring-shaped protrusion is engaged with the ring-shaped slot, and the ring-shaped protrusion or the ring-shaped slot is disposed on the grip portion or the rotation control base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921868545.9U CN211723272U (en) | 2019-11-01 | 2019-11-01 | Endoscopic surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921868545.9U CN211723272U (en) | 2019-11-01 | 2019-11-01 | Endoscopic surgical instrument |
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| Publication Number | Publication Date |
|---|---|
| CN211723272U true CN211723272U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921868545.9U Active CN211723272U (en) | 2019-11-01 | 2019-11-01 | Endoscopic surgical instrument |
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| Country | Link |
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| CN (1) | CN211723272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476144A (en) * | 2021-08-23 | 2021-10-08 | 上海生知医疗科技有限公司 | Multi-degree-of-freedom portable minimally invasive surgery mechanical arm |
-
2019
- 2019-11-01 CN CN201921868545.9U patent/CN211723272U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476144A (en) * | 2021-08-23 | 2021-10-08 | 上海生知医疗科技有限公司 | Multi-degree-of-freedom portable minimally invasive surgery mechanical arm |
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