CN202218889U - Operating mechanism of surgical stitching instrument - Google Patents
Operating mechanism of surgical stitching instrument Download PDFInfo
- Publication number
- CN202218889U CN202218889U CN 201120309344 CN201120309344U CN202218889U CN 202218889 U CN202218889 U CN 202218889U CN 201120309344 CN201120309344 CN 201120309344 CN 201120309344 U CN201120309344 U CN 201120309344U CN 202218889 U CN202218889 U CN 202218889U
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- Prior art keywords
- cam
- operating mechanism
- ejector pin
- surgical stapling
- stapling device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Animal Behavior & Ethology (AREA)
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an operating mechanism of a surgical stitching instrument. The surgical stitching instrument comprises a fixed handle and a support, a percussion handle is pivoted on the support, and the support is further provided with a nail push rod and a nail bin push rod which are capable of sliding relative to the support, and a nail bin is arranged at a far end of the nail bin push rod. The nail push rod abuts against a nail push piece arranged in the nail bin. The operating mechanism of the surgical stitching instrument comprises a combination cam which is in optionally matched connection between the percussion handle and the nail bin push rod or between the percussion handle and the nail push rod. The combination cam is pivoted on the support. The operating mechanism of the surgical stitching instrument has the advantages of (1) adopting a gear to control closing and percussion of instruments, being capable of controlling the percussion process more accurately and being high in safety; (2) being capable of achieving a semi-closing state at any position, safe and reliable; and (3) being simple and feasible in structure, and convenient in assembly.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of operating mechanism that is used to pull the trigger stitching and release of linear stapler.
Background technology
At present, tissues such as esophagus, stomach, intestinal are carried out surgical operation when coincideing, often use the surgical operation Binding Instrument to coincide, wherein, the linear suture device is a kind of of outbalance.In the prior art; With reference to U.S. Pat 7407076; Put down in writing a kind of linear suture device; Be used for closed digestive tract and viscera tissue wound; Generally comprise housing, be fixed in the intravital support of shell, be arranged at rack far end and be used to implement sew application nail anvil and nail bin, be arranged in the support and be used to promote the actuating device of the nail in nail bin and the nail bin, and be arranged on the support and be connected in the percussion handle of actuating device through a rotating shaft pivot, actuating device comprises that two are used to promote nail bin to the nail bin push rod of nail anvil direction motion and be arranged between two nail bin push rods and be used to the ejector pin bar that promotes to follow closely.
The use of this apparatus is roughly following: at first, be placed into operative site to suture instruments, tissue to be sewed up is placed between nail anvil and the nail bin; Then, extruding percussion handle makes nail bin draw close to the nail anvil direction, and apparatus is in the semi-closed state at this moment, can do adjustment further to the position of tissue; Then, continue extruding percussion handle, make nail bin draw close and compressed tissue to nail anvil further, apparatus is in closure state at this moment; Then, unclamp the percussion handle, the pushing mechanism of pulling the trigger handle is switched to said ejector pin bar be connected; Extruding percussion handle is released the nail in the nail bin through the effect of ejector pin bar once more, thereby accomplishes sew application; At last, push button release, nail bin push rod, ejector pin bar and nail bin return to original state together.This patented technology is the closed and percussion that has the brake(-holder) block realization apparatus of guide rail through two, and part is more, causes manufacturing cost higher, and assembling inconvenience.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, and a kind of operating mechanism that adopts gear control to sew up and discharge with the percussion that realizes apparatus is provided.
The purpose of this utility model realizes through following technical scheme:
A kind of operating mechanism of surgical stapling device; Said surgical stapling device comprises fixed handle and support; Described support head lamp brush guard pivot is provided with a percussion handle; Also be provided with the ejector pin bar and the nail bin push rod of its slip relatively on the said support; The far-end of said nail bin push rod is provided with nail bin, and the pushing slice of nail butt in said ejector pin bar and the nail bin, the operating mechanism of said surgical stapling device comprise that one selectively connects to link and perhaps pulls the trigger the compound cam between handle and the ejector pin bar between percussion handle and the nail bin push rod; Said compound cam pivot is on said support; Link when pulling the trigger between handle and the nail bin push rod when said compound cam connects, said percussion handle moves through ordering about said compound cam rotation and then driving said nail bin push rod; Link when pulling the trigger between handle and the ejector pin bar when said compound cam connects, said percussion handle moves through ordering about said compound cam rotation and then driving said ejector pin bar.
Preferably; Said compound cam comprises an intermediate layer; Said intermediate layer be one with the eccentric cam set that is provided with of the pivoting point of compound cam; The drive surface of said cam set is two groups of cam surfaces, is respectively nail bin push rod percussion face and ejector pin bar percussion face, and the curvature of said ejector pin bar percussion face is greater than the curvature of said nail bin push rod percussion face; Link when pulling the trigger between handle and the nail bin push rod when said compound cam connects, said nail bin push rod percussion face is connected to the near-end of said nail bin push rod; Link when pulling the trigger between handle and the ejector pin bar when said compound cam connects, said ejector pin bar percussion face is connected to the near-end of said ejector pin bar.
Preferably, said ejector pin bar percussion face is provided with the spline boss that connects with said ejector pin bar.
Preferably, a side in the intermediate layer of said compound cam be provided with one be used to transmit the revolving force that orders about the rotation of said compound cam cam wheel.
Preferably, the operating mechanism of said surgical stapling device comprises that also one is used for taking turns with the anti-backoff teeth of said cam wheel engagement, and the pivot structure of unilateral bearing is adopted in the inside of said anti-backoff teeth wheel.
Preferably, the top of said percussion handle is one to be used to drive the unidirectional travelling gear of said compound cam rotation, and said unidirectional travelling gear meshes with said anti-backoff teeth wheel.
Preferably, the periphery of the unidirectional travelling gear of said percussion handle is provided with row's ratchet.
Preferably, said support head lamp brush guard pivot is provided with a grip brake bar, and a said end hand brake lever is sharp-pointed the setting, and connects with said ratchet; Said said for driving the drive end of hand brake lever rotation the other end of hand brake lever.
Preferably; The opposite side with respect to said cam wheel in the intermediate layer of said compound cam is provided with a little cam; Said little cam is connected to said the drive end of hand brake lever; When the peak of said little cam and said drive end hand brake lever connected, said little cam drove said the hand brake lever rotation and make it and said ratchet breaks away from.
Preferably, said be provided with between hand brake lever and the support one be used to order about said the braking pole spring of hand brake lever spinning reduction.
Preferably, be provided with between said compound cam and the support one be used to drive said compound cam spinning reduction the cam torsion spring.
Preferably; The operating mechanism of said surgical stapling device also comprises the button release and the trip lever that are used to order about said compound cam spinning reduction; Said trip lever pivot is in said support; One end of said trip lever is connected on the said button release all the time, is socketed with the said anti-gear that reverses on the other end.
Preferably, said button release pivot is arranged with one and is used to button release torsion spring that said button release is resetted on said support on the said pivot.
Preferably, be provided with a trip lever spring between the end that button release said trip lever and said connects and the pivoting point of said trip lever, the other end of said trip lever spring is fixed on the said support.
Preferably, also be provided with one between said ejector pin bar and the support and be used to ejector pin pole spring that said ejector pin bar is resetted.
The beneficial effect of this utility model is mainly reflected in:
(1) adopt the closed and percussion of gear control tool, the percussion process of control device more accurately, safety is good.
(2) can realize the semi-closed state in any position, safe and reliable.
(3) simple in structure, easy row; Easy to assembly.
Description of drawings
Below in conjunction with accompanying drawing this utility model technical scheme is described further:
Fig. 1 is the structural representation that this utility model is in original state;
Fig. 2 a is the left view of the compound cam of this utility model;
Fig. 2 b is the right view of the compound cam of this utility model;
Fig. 2 c is the vertical view of the compound cam of this utility model;
Fig. 2 d is the upward view of the compound cam of this utility model;
Fig. 3 is the structural representation that this utility model is in the semi-closed state;
Fig. 4 is the structural representation that this utility model is in closure state;
Fig. 5 unclamps the structural representation of pulling the trigger the handle state after this utility model is in closure;
Fig. 6 is the structural representation that this utility model is in the percussion state;
Fig. 7 is the structural representation that this utility model is in release conditions.
Wherein.
| 1 | The |
2 | The nail |
3 | |
| 4 | The |
5 | The |
6 | |
| 7 | The button |
8 | |
9 | The |
| 10 | |
11 | |
12 | The |
| 13 | The |
14 | |
15 | |
| 16 | The |
17 | The ejector |
18 | Fixed |
| 19 | Ratchet | 31 | |
32 | The |
| 33 | The |
34 | |
35 | Ejector pin |
| 36 | Nail bin push rod percussion face | ? | ? | ? | ? |
The specific embodiment
As shown in Figure 1; This utility model has disclosed a kind of operating mechanism of surgical stapling device; The same with prior art; Said surgical stapling device comprises fixed handle 18 and support 11, and described support 11 head lamp brush guard pivots are provided with a percussion handle 12, establish a grip spring 13 between said percussion handle 12 and the fixed handle 18.Also be provided with the ejector pin bar 1 and nail bin push rod 2 of its slip relatively on the said support 11, the far-end of said nail bin push rod 2 is provided with nail bin, said ejector pin bar 1 and the interior pushing slice of nail butt of nail bin.Also be provided with one between said ejector pin bar 1 and the support 11 and be used to ejector pin pole spring 17 that said ejector pin bar 1 is resetted.
The special character of this utility model is: the operating mechanism of said surgical stapling device comprises that one is used for selectively connecting linking and between percussion handle 12 and nail bin push rod 2, perhaps pulls the trigger the compound cam 3 between handle 12 and the ejector pin bar 1.Said compound cam 3 pivots are on said support 11.Be provided with between said compound cam 3 and the support 11 one be used to drive said compound cam 3 spinning reductions cam torsion spring 4.
Said in conjunction with Fig. 2 a-Fig. 2 d; Said compound cam 3 comprises an intermediate layer 32; Said intermediate layer 32 be one with the eccentric cam set that is provided with of the pivoting point of compound cam 3; The drive surface of said cam set is two groups of cam surfaces, is respectively nail bin push rod percussion face 36 and ejector pin bar percussion face 35, and the curvature of said ejector pin bar percussion face 35 is greater than the curvature of said nail bin push rod percussion face 36.
When connecting, said compound cam 3 links when pulling the trigger between handle 12 and the nail bin push rod 2; Said nail bin push rod percussion face 36 is connected to the near-end of said nail bin push rod 2; Said percussion handle 12 is through ordering about 3 rotations of said compound cam, and then drives said nail bin push rod 2 and move; When said compound cam 3 connects when linking between percussion handle 12 and ejector pin bar 1, said ejector pin bar percussion face 35 is connected to the near-end of said ejector pin bar 1, and said percussion handle 12 rotates through ordering about said compound cam 3, and then drives said ejector pin bar 1 and move.
Preferably, said ejector pin bar percussion face 35 is provided with one and is used for the spline boss 33 that connects with said ejector pin bar 1, and said spline boss 33 is used to prevent that compound cam 3 rotations are excessive.
One side in the intermediate layer 32 of said compound cam be provided with one be used to transmit the revolving force that orders about 3 rotations of said compound cam cam wheel 31.The opposite side with respect to said cam wheel in the intermediate layer 32 of said compound cam is provided with a little cam 34.
As shown in Figure 1, the operating mechanism of said surgical stapling device comprises that also one is used for taking turns 5 with the anti-backoff teeth of said cam wheel 31 engagements, and the pivot structure of unilateral bearing is adopted in the inside of said anti-backoff teeth wheel 5.Unilateral bearing is for adopting the needle roller 6 of prior art in this example.
The top of said percussion handle 12 is one to be used to drive the unidirectional travelling gear 14 of said compound cam 3 rotations, said unidirectional travelling gear 14 and said anti-backoff teeth wheel 5 engagements.The periphery of the unidirectional travelling gear 14 of said percussion handle 12 is provided with row's ratchet 19.Said support 11 head lamp brush guard pivots are provided with a grip brake bar 15, and a said end hand brake lever 15 is sharp-pointed the setting, and connects with said ratchet 19; Said said for driving the drive end of hand brake lever 15 rotations the other end of hand brake lever 15.
Preferably; The little cam 34 of said compound cam 3 is connected to said the drive end of hand brake lever 15; When the peak of said little cam 34 and said drive end hand brake lever 15 connect, said little cam 34 drive said hand brake lever 15 rotations and with make it and 19 disengagings of said ratchet.Said be provided with between hand brake lever 15 and the support 11 one be used to order about said the braking pole spring 16 of hand brake lever 15 spinning reductions.
The operating mechanism of said surgical stapling device also comprises the button release 8 and trip lever 10 that are used to order about said compound cam 3 spinning reductions; Said trip lever 10 pivots are on said support 11; One end of said trip lever 10 is connected on the said button release 8 all the time, is socketed with the said anti-gear 5 that reverses on the other end.
Preferably, said button release 8 pivots are arranged with one and are used to button release torsion spring 7 that said button release 8 is resetted on said support 11 on the said pivot.Be provided with a trip lever spring 9 between the end that button release 8 said trip lever 10 and said connects and the pivoting point of said trip lever 10, the other end of said trip lever spring 9 is fixed on the said support 11.
The operation principle of this utility model such as Fig. 3～shown in Figure 7, narrate as follows:
At first, will pull the trigger handle 12 and firmly hold with a firm grip, drive ratchet 14 by percussion handle 12; It is rotated counterclockwise, and ratchet 14 drives anti-backoff teeth wheel 5 again, and it is clockwise rotated; Anti-backoff teeth wheel 5 drives the cam wheel 31 of compound cam 3, and compound cam 3 is rotated counterclockwise, thereby nail bin push rod percussion face 36 contacts with the near-end of nail bin push rod 2; And nail bin push rod 2 promoted forward, thereby realize nail bin to nail anvil near; In this process, the percussion handle 12 that can stop at any time holding with a firm grip, as shown in Figure 3; Percussion handle 12 can not occur under 13 effects of handle spring and rebound, because percussion handle 12 vertical surfaces are provided with one section ratchet 19, and ratchet 19 and brake bar 15 engagements; When ratchet 14 loses when making it to the driving force that counterclockwise rotates, brake bar 15 stops ratchets 14 to reverse, and promptly nail bin can not retreated; Be in the semi-closed state this moment, can be with treating that suture tissue adjusts further.
Then, will pull the trigger handle 12 and hold and be at the end, as shown in Figure 4, compound cam 3 is turned to a high point of little cam 34, and this height brake bar 15 of naming a person for a particular job backs down, and makes it can not mesh ratchet 14, and percussion handle 12 resets under the effect of handle spring 13, and is as shown in Figure 5.
Thereafter, as shown in Figure 6, the percussion handle 12 of holding with a firm grip again drives compound cam 3 with above-mentioned process, and compound cam travels forward with its ejector pin bar percussion face 35 percussion ejector pin bars 1 for 3 this moments, accomplishes the percussion of nail.Brake bar 15 and ratchet 19 engagements can prevent to pull the trigger when handle 12 gets loose and return automatically.Pull the trigger handle 12 and do not reset this moment, and the expression percussion is accomplished.
At last; As shown in Figure 7, push button release 8, the trip lever 10 that button release 8 is oppressed the anti-backoff teeth wheel 5 of ining succession rotates; Driving anti-backoff teeth wheel 5 moves up and breaks away from the engagement with ratchet 4 and compound cam 3; Make percussion handle 12 initial position that under the effect of handle spring 13, rebounds, compound cam 3 also goes back to initial position under the effect of cam torsion spring 4, and ejector pin bar 1 is got back to initial position under the effect of ejector pin pole spring 17.Wherein, when percussion handle 12 is return at the unidirectional travelling gear 14 of drive, certain distance limit of returning is arranged, could get into engagement with anti-backoff teeth wheel 5.
This utility model still has multiple concrete embodiment, as is equal to replacement or equivalent transformation and all technical schemes of forming all drop within the scope of this utility model requirement protection.
Claims (15)
1. the operating mechanism of a surgical stapling device; Said surgical stapling device comprises fixed handle and support; Described support head lamp brush guard pivot is provided with a percussion handle; Also be provided with the ejector pin bar and the nail bin push rod of its slip relatively on the said support; The far-end of said nail bin push rod is provided with nail bin, and the pushing slice of nail butt in said ejector pin bar and the nail bin is characterized in that: the operating mechanism of said surgical stapling device comprises that one selectively connects to link and perhaps pulls the trigger the compound cam between handle and the ejector pin bar between percussion handle and the nail bin push rod; Said compound cam pivot is on said support; Link when pulling the trigger between handle and the nail bin push rod when said compound cam connects, said percussion handle moves through ordering about said compound cam rotation and then driving said nail bin push rod; Link when pulling the trigger between handle and the ejector pin bar when said compound cam connects, said percussion handle moves through ordering about said compound cam rotation and then driving said ejector pin bar.
2. the operating mechanism of surgical stapling device according to claim 1; It is characterized in that: said compound cam comprises an intermediate layer; Said intermediate layer be one with the eccentric cam set that is provided with of the pivoting point of compound cam; The drive surface of said cam set is two groups of cam surfaces, is respectively nail bin push rod percussion face and ejector pin bar percussion face, and the curvature of said ejector pin bar percussion face is greater than the curvature of said nail bin push rod percussion face; Link when pulling the trigger between handle and the nail bin push rod when said compound cam connects, said nail bin push rod percussion face is connected to the near-end of said nail bin push rod; Link when pulling the trigger between handle and the ejector pin bar when said compound cam connects, said ejector pin bar percussion face is connected to the near-end of said ejector pin bar.
3. the operating mechanism of surgical stapling device according to claim 2 is characterized in that: said ejector pin bar percussion face is provided with the spline boss that connects with said ejector pin bar.
4. the operating mechanism of surgical stapling device according to claim 2 is characterized in that: a side in the intermediate layer of said compound cam be provided with one be used to transmit the revolving force that orders about said compound cam rotation cam wheel.
5. the operating mechanism of surgical stapling device according to claim 4; It is characterized in that: the operating mechanism of said surgical stapling device comprises that also one is used for taking turns with the anti-backoff teeth of said cam wheel engagement, and the pivot structure of unilateral bearing is adopted in the inside of said anti-backoff teeth wheel.
6. the operating mechanism of surgical stapling device according to claim 5 is characterized in that: the top of said percussion handle is one to be used to drive the unidirectional travelling gear of said compound cam rotation, and said unidirectional travelling gear meshes with said anti-backoff teeth wheel.
7. the operating mechanism of surgical stapling device according to claim 6 is characterized in that: the periphery of the unidirectional travelling gear of said percussion handle is provided with row's ratchet.
8. the operating mechanism of surgical stapling device according to claim 7, it is characterized in that: said support head lamp brush guard pivot is provided with a grip brake bar, and a said end hand brake lever is sharp-pointed the setting, and connects with said ratchet; Said said for driving the drive end of hand brake lever rotation the other end of hand brake lever.
9. the operating mechanism of surgical stapling device according to claim 8; It is characterized in that: the opposite side with respect to said cam wheel in the intermediate layer of said compound cam is provided with a little cam; Said little cam is connected to said the drive end of hand brake lever; When the peak of said little cam and said drive end hand brake lever connected, said little cam drove said the hand brake lever rotation and make it and said ratchet breaks away from.
10. the operating mechanism of surgical stapling device according to claim 9 is characterized in that: said be provided with between hand brake lever and the support one be used to order about said the braking pole spring of hand brake lever spinning reduction.
11. the operating mechanism of surgical stapling device according to claim 1 is characterized in that: be provided with between said compound cam and the support one be used to drive said compound cam spinning reduction the cam torsion spring.
12. the operating mechanism of surgical stapling device according to claim 5; It is characterized in that: the operating mechanism of said surgical stapling device also comprises the button release and the trip lever that are used to order about said compound cam spinning reduction; Said trip lever pivot is in said support; One end of said trip lever is connected on the said button release all the time, is socketed with the said anti-gear that reverses on the other end.
13. the operating mechanism of surgical stapling device according to claim 12 is characterized in that: said button release pivot is arranged with one and is used to button release torsion spring that said button release is resetted on said support on the said pivot.
14. the operating mechanism of surgical stapling device according to claim 12; It is characterized in that: be provided with a trip lever spring between the end that button release said trip lever and said connects and the pivoting point of said trip lever, the other end of said trip lever spring is fixed on the said support.
15. the operating mechanism according to claim 1 described surgical stapling device is characterized in that: also be provided with one between said ejector pin bar and the support and be used to ejector pin pole spring that said ejector pin bar is resetted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120309344 CN202218889U (en) | 2011-08-24 | 2011-08-24 | Operating mechanism of surgical stitching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120309344 CN202218889U (en) | 2011-08-24 | 2011-08-24 | Operating mechanism of surgical stitching instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218889U true CN202218889U (en) | 2012-05-16 |
Family
ID=46040929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120309344 Expired - Fee Related CN202218889U (en) | 2011-08-24 | 2011-08-24 | Operating mechanism of surgical stitching instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218889U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949220A (en) * | 2011-08-24 | 2013-03-06 | 苏州天臣国际医疗科技有限公司 | Operating mechanism of surgical stitching instrument |
| CN103385743A (en) * | 2013-08-02 | 2013-11-13 | 苏州天臣国际医疗科技有限公司 | Linear anastomat |
| CN103654900A (en) * | 2013-12-17 | 2014-03-26 | 苏州天臣国际医疗科技有限公司 | Linear cutting anastomat |
| CN105943104A (en) * | 2016-05-24 | 2016-09-21 | 山东威瑞外科医用制品有限公司 | A cutter driving device for an intracavity cutting stapler |
| CN107496011A (en) * | 2017-08-18 | 2017-12-22 | 朱雪阳 | Peritomize component |
| WO2019061225A1 (en) * | 2017-09-29 | 2019-04-04 | 徕卡显微系统(上海)有限公司 | Device for changing rotation direction of microtome |
| US10327770B2 (en) | 2013-12-17 | 2019-06-25 | Suzhou Touchstone International Medical Science Co., Ltd. | Linear cutting stapler |
-
2011
- 2011-08-24 CN CN 201120309344 patent/CN202218889U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949220A (en) * | 2011-08-24 | 2013-03-06 | 苏州天臣国际医疗科技有限公司 | Operating mechanism of surgical stitching instrument |
| CN102949220B (en) * | 2011-08-24 | 2014-10-29 | 苏州天臣国际医疗科技有限公司 | Operating mechanism of surgical stitching instrument |
| CN103385743A (en) * | 2013-08-02 | 2013-11-13 | 苏州天臣国际医疗科技有限公司 | Linear anastomat |
| CN103385743B (en) * | 2013-08-02 | 2015-06-10 | 苏州天臣国际医疗科技有限公司 | Linear anastomat |
| CN103654900A (en) * | 2013-12-17 | 2014-03-26 | 苏州天臣国际医疗科技有限公司 | Linear cutting anastomat |
| CN103654900B (en) * | 2013-12-17 | 2015-12-16 | 苏州天臣国际医疗科技有限公司 | Linear cutting anastomat |
| US10327770B2 (en) | 2013-12-17 | 2019-06-25 | Suzhou Touchstone International Medical Science Co., Ltd. | Linear cutting stapler |
| CN105943104A (en) * | 2016-05-24 | 2016-09-21 | 山东威瑞外科医用制品有限公司 | A cutter driving device for an intracavity cutting stapler |
| CN107496011A (en) * | 2017-08-18 | 2017-12-22 | 朱雪阳 | Peritomize component |
| WO2019061225A1 (en) * | 2017-09-29 | 2019-04-04 | 徕卡显微系统(上海)有限公司 | Device for changing rotation direction of microtome |
| US11796427B2 (en) | 2017-09-29 | 2023-10-24 | Leica Microsystems Ltd., Shanghai | Rotating direction change device for microtome |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20120824 |