CN202355441U - Pin head assembly of stitching instrument and stitching and cutting instrument - Google Patents
Pin head assembly of stitching instrument and stitching and cutting instrument Download PDFInfo
- Publication number
- CN202355441U CN202355441U CN 201120435873 CN201120435873U CN202355441U CN 202355441 U CN202355441 U CN 202355441U CN 201120435873 CN201120435873 CN 201120435873 CN 201120435873 U CN201120435873 U CN 201120435873U CN 202355441 U CN202355441 U CN 202355441U
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- pull bar
- side section
- section
- nail
- seaming
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Abstract
The utility model provides a pin head assembly of a stitching instrument and a stitching and cutting instrument. The pin head assembly comprises a U-shaped frame, wherein the U-shaped frame is composed of a right-side section and a left-side section which are arranged in parallel and a connecting arm arranged between the right-side section and the left-side section; a pull rod frame is arranged at the far end of the right-side section; a through hole is arranged on the pull rod frame; a locking mechanism for fixing the far end of a pull rod is oppositely arranged at the far end of the left-side section; a locking fit mechanism cooperated with the locking mechanism is arranged at the far end of the pull rod; and the right-side section, the connecting arm and the left-side section of the U-shaped frame and the pull rod are arranged shaped like a square after the locking fit mechanism at the far end of the pull rod is locked at the locking mechanism on the left-side section. The pin head assembly provided by the utility model has the main beneficial effects that: the pin head strength is effectively increased; the parallelism deformation amounts of a pin anvil and a pin bin are greatly decreased; and the pin head assembly is widely suitable for linear stitching instruments, linear stitching and cutting instruments or arc-shaped stitching and cutting instruments.
Description
Technical field
This utility model relates to a kind of nail-head component of surgical operating instrument, relates in particular to the nail-head component of a kind of linear stiching instrument or linear seaming and cutting device or arc seaming and cutting device.
Background technology
Stiching instrument or seaming and cutting device are mainly used in and form straight line or arcual stitching thread, and its basic percussion principle is roughly the same.Wherein, Arc seaming and cutting device mainly is suitable for excision before the rectum low level, and for example the arc seaming and cutting device that disclosed of U.S. Pat 6805273 can get into the low position of pelvic cavity, also can expose anatomical structure better; Be convenient to deep operation, in rectum low level excision, can go deep into basin at the bottom of low position.The more important thing is in once-through operation, to accomplish and sew up and cutting, simplified the step of rectum distal resection.
The linear stiching instrument that is disclosed with U.S. Pat 6817508 is the same, and arc seaming and cutting device mainly comprises compositions such as nail bin, nail anvil, percussion handle, drive disk assembly.The existing U-shaped frame that is used to place nail anvil and nail bin is integrated with aluminum alloy materials, on nail anvil and the nail bin put be parallel to each other.But, nail anvil and nail bin on it are not parallel to each other because the insufficient strength of aluminum alloy materials causes stiching instrument or seaming and cutting device nail U-shaped frame stress deformation in percussion; It is bad to cause following closely molding like this; A kind of way of the prior art be with the aluminum alloy materials of U type frame do very abundant, can cause head construction to expand like this, influence operative space; And cause apparatus very heavy, doctor's operation is also very arduous.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, provides a kind of and strengthens the ailhead intensity of stiching instrument, seaming and cutting device and can reduce nail anvil or the nail-head component of nail bin deflection.
The purpose of this utility model realizes through following technical scheme:
The nail-head component of a kind of stiching instrument, seaming and cutting device comprises a U-shaped frame, and said U-shaped frame is by the right side section that is arranged in parallel, left side section; And the linking arm of being located between right side section and the left side section is formed; The U type of said U-shaped frame lateral openings is provided with, and said left side section is provided with nail anvil, and said right side section is provided with nail bin; The far-end of said right side section is provided with a pulling-rod frame; Said pulling-rod frame is provided with one and can supplies a pull bar to slide or the through hole of rotation, the far-end of said left side section be provided with relatively one be used for fixing said pull bar far-end retaining mechanism, the far-end of said pull bar is provided with the locking matching mechanism that matches with said retaining mechanism; After the locking matching mechanism of said pull bar far-end lock onto the retaining mechanism on the section of said left side, the right side section of said U-shaped frame, linking arm, left side section and pull bar were the setting of " mouth " font.
Preferably; Said pull bar comprises a cylindrical body; And pull bar far-end and pull bar near-end, being fixed with the leader on the said pull bar near-end, the locking matching mechanism of said pull bar far-end is one to be convexly set in the ellipse around boss on the said cylindrical body; The major diameter of said ellipse around boss is greater than the diameter of said body, and the minor axis of said ellipse around boss is less than the diameter of said body.
Preferably; Retaining mechanism on the section of said left side is a counterbore; The internal diameter of the large-diameter portion of said counterbore is equal to or greater than the major diameter of said ellipse around boss, and the interior profile of the minor diameter part of said counterbore and the cylindrical body of said pull bar and ellipse around boss are in the profile phase coupling of the common projection on minor diameter part surface.
Preferably, the cylindrical body of the profile of the through hole of said pulling-rod frame and said pull bar and ellipse around boss are in the profile phase coupling of the common projection on counterbore minor diameter part surface.
Perhaps, said pull bar comprises a cylindrical body, and pull bar far-end and pull bar near-end, is fixed with the leader on the said pull bar near-end, and the locking matching mechanism of said pull bar far-end comprises a boss, and is located at the thin diameter section between said boss and the body.
Preferably, be located at the inner chamber on the section of left side in the retaining mechanism on the section of said left side comprises, said interior intracavity is symmetrically fixed with two springs, respectively is fixed with a block that has the inclined-plane on the adjacent activities end of said two springs relatively.
Preferably, the width of said block equals the length of said thin diameter section.
Preferably; In comprising, retaining mechanism on the section of said left side is located at the inner chamber on the section of left side; Intracavity is arranged with two shell fragments in said; All each is fixed by a shell fragment block one end of said two shell fragments, the shell fragment movable end of said two shell fragments under situation about not stressing each other distance less than the maximum outside diameter of boss.
Perhaps, said pull bar comprises a cylindrical body, and pull bar far-end and pull bar near-end, is fixed with the leader on the said pull bar near-end, and the locking matching mechanism of said pull bar far-end is a screw rod.
Preferably, the retaining mechanism on the section of said left side is the screwed hole that cooperates with said screw flight.
The beneficial effect of this utility model is mainly reflected in: (1) has increased ailhead intensity effectively; (2) reduce the depth of parallelism deflection of nail anvil and nail bin largely; (3) adaptable across linear stiching instrument or linear seaming and cutting device or arc seaming and cutting device.
Description of drawings
Below in conjunction with accompanying drawing this utility model technical scheme is described further:
Fig. 1: the structural representation of this utility model first embodiment.
Fig. 2: the front view of the pull bar of this utility model first embodiment.
Fig. 3: the left view of the pull bar of this utility model first embodiment.
Fig. 4: the vertical view of the pull bar of this utility model first embodiment.
Fig. 5: the sketch map of this utility model first embodiment after pull bar inserts counterbore.
Fig. 6: among Fig. 5 A to partial enlarged drawing.
Fig. 7: the enlarged drawing of I part among Fig. 5.
Fig. 8: this utility model first embodiment is when the postrotational sketch map of pull bar.
Fig. 9: among Fig. 8 B to partial enlarged drawing.
Figure 10: the enlarged drawing of II part among Fig. 8.
Figure 11: the sketch map of this utility model second embodiment before pull bar does not insert counterbore.
Figure 12: the sketch map of this utility model second embodiment after pull bar inserts counterbore.
Figure 13: this utility model second embodiment is when the postrotational sketch map of pull bar.
Figure 14: the sketch map of this utility model the 3rd embodiment before pull bar does not insert counterbore.
Figure 15: the sketch map of this utility model the 3rd embodiment after pull bar inserts counterbore.
Figure 16: the structural representation of this utility model the 4th embodiment.
Wherein.
| 1 | The |
11 | Left side section near- |
12 | Left side section far- |
| 13 | |
14 | The |
2 | The |
| 21 | Right side section near- |
22 | Right side section far- |
3 | Linking |
| 4 | |
41 | The pull bar far- |
42 | The pull bar near- |
| 43 | |
44 | |
45 | |
| 46 | |
47 | |
5 | Pulling- |
| 51 | Through |
61 | |
62 | The push |
| 63 | |
64 | |
65 | The spring |
| 66 | |
67 | The |
68 | The shell fragment |
| 7 | Screwed |
8 | |
9 | Nail bin |
The specific embodiment
This utility model has disclosed a kind of nail-head component, is applicable to linear stiching instrument or linear seaming and cutting device or arc seaming and cutting device or the like.Because these stiching instrument or seaming and cutting device comprise the nail anvil 8 and nail bin 9 of mutual opposing parallel basically.
As shown in Figure 1, nail-head component comprises a U-shaped frame, and integral body is the U font setting of lateral openings, respectively left side section 1, right side section 2, linking arm 3 three parts.Said right side section 2, left side section 1 are arranged in parallel; Comprise right side section near-end 21, right side section far-end 22, left side section near-end 11, left side section far-end 12 respectively; Said linking arm 3 is located between right side section near-end 21 and the left side section near-end 11; The three can be fastenedly connected then in the split manufacturing, also preferably one manufacturing.Said left side section 1 is provided with nail anvil 8, and said right side section 2 is provided with nail bin 9.Wherein, nail anvil 8 can directly be processed to form on said left side section 1, also can follow-up setting firmly and on.Said nail bin 9 is the same with prior art, on slide setting and said right side section 2, can continue to change nail bin 9 like this.
Among first embodiment as shown in Figure 1, be fixed with a pulling-rod frame 5 on the said left side section near-end 11, be provided with one in the said pulling-rod frame 5 and can supply the through hole 51 of a pull bar 4 slips or rotation.Like Fig. 2-shown in Figure 4; Said pull bar 4 comprises a cylindrical body 43; And pull bar far-end 41 and pull bar near-end 42, being fixed with leader 44 on the said pull bar near-end 42, said pull bar far-end 41 is one to be convexly set in the ellipse around boss 45 on the said cylindrical body; The major diameter of said ellipse around boss 45 is greater than the diameter of said body 43, and the minor axis of said ellipse around boss 45 is less than the diameter of said body 43.
On the section 1 of said left side corresponding be provided with one be used for fixing the far-end of said pull bar 4 retaining mechanism; Retaining mechanism described in the present embodiment is a counterbore 13; The internal diameter of the large-diameter portion of said counterbore is equal to or greater than the major diameter of said ellipse around boss 45, guarantees that like this ellipse around boss 45 and pull bar cylindrical body 43 all can be in the large-diameter portion rotations of counterbore; The interior profile of the minor diameter part of said counterbore and cylindrical body of said pull bar 43 and the profile phase coupling of ellipse around boss 45 in the common projection on minor diameter part surface, the cylindrical body 43 of guaranteeing said pull bar like this only can pass the minor diameter part of said counterbore 13 with ellipse around boss 45 and can not rotate at minor diameter part.Further; The profile of the through hole 51 of said pulling-rod frame also matees at the profile phase of the common projection on counterbore minor diameter part surface with the cylindrical body and the ellipse around boss of said pull bar, guarantees that like this cylindrical body 43 of said pull bar can pass said through hole 51 with ellipse around boss 45.
,, when tissue gets into the stitching zone of right side section and left side section composition, promote handle 44 earlier said pull bar 4 is passed through hole 51, and extend in the said counterbore 13 to shown in Figure 10 in conjunction with Fig. 5.After ellipse around boss 45 enters into the large-diameter portion of counterbore; Rotating handles 44 is with angles of said pull bar 4 rotations (being generally 90 degree); Make the portion of cylindrical body projected outline of the corresponding minor diameter part of major diameter of the ellipse around boss of pull bar 4 far-ends; Be that said ellipse around boss 45 is connected on the counterbore end face 14, thereby pull bar 4 is locked in the left side section 1, said like this right side section 2, linking arm 3, left side section 1, pull bar 4 four are the setting of " mouth " font; Left side section is stressed excessive and be out of shape when preventing to pull the trigger with regard to playing, thus influence nail forming effect.
Figure 11 to Figure 13 has disclosed second embodiment of this utility model; Said pull bar 4 comprises a cylindrical body 43; And pull bar far-end 41 and pull bar near-end 42; Be fixed with leader 44 on the said pull bar near-end 42, said pull bar far-end 41 is provided with at least one hemispherical boss 45, and a thin diameter section 46 is arranged between said boss 45 and the body 43.Be provided with an inner chamber 61 in the section of said left side; Be symmetrically fixed with two springs 63 in the said inner chamber 61; Being fixed by spring steady pin 65 of said two springs 63 away from end; Respectively be fixed with a block 64 that has the inclined-plane relatively on the adjacent activities end of said two springs 63, the width of said block 64 equals the length of said thin diameter section 46.Be covered with a push rod port lid 62 outside the said inner chamber 61, which is provided with the circular hole that can supply said pull bar 4 to stretch into.
When push rod 4 receives thrust 1 when motion of section to the left, the boss 45 of push rod far-end contacts with the inclined-plane of two blocks 64, and two blocks are oppressed to be moved to both sides, passes through the position of two blocks up to the hemispherical boss 45 of push rod.At this moment; Two blocks 64 get into the thin diameter section 46 of push rod; Push rod 4 is firmly pinned, thereby realized expected effect, promptly said right side section 2, linking arm 3, left side section 1, pull bar 4 four are the setting of " mouth " font; Left side section is stressed excessive and be out of shape when preventing to pull the trigger with regard to playing, thus the effect that the influence nail is shaped.When needs make push rod 4 break away from the left side section, need the manually near-end of rotation push rod, two blocks are contacted with the short diameter end of hemispherical boss, can firmly extract push rod, make it break away from left side section 1.
Figure 14, Figure 15 have disclosed the 3rd embodiment of this utility model; The structure of said pull bar 4 is identical with second embodiment; Be provided with an inner chamber 61 in the section of said left side; Be symmetrically fixed with two shell fragments 66 in the said inner chamber 61, all each is fixing by a shell fragment block 67 for an end of said two shell fragments 66, the shell fragment movable end of said two shell fragments 66 under situation about not stressing each other distance less than the maximum outside diameter of boss.Be covered with a push rod port lid 62 outside the said inner chamber 61, which is provided with the circular hole that can supply said pull bar 4 to stretch into.Motor process that this is routine and effect are all roughly the same with second embodiment, repeat no more at this.
Figure 16 has disclosed the 4th embodiment of this utility model, and said pull bar 4 comprises a cylindrical body 43, and pull bar far-end 41 and pull bar near-end 42, is fixed with leader 44 on the said pull bar near-end 42, and said pull bar far-end 41 is a screw rod 47.Said left side section 1 is provided with the screwed hole 7 of said screw rod 47 threaded engagement.When pull bar 4 move make its screw rod 47 abut on the said screwed hole 7 after, rotating rod 4 makes itself and what left side section 1 fastening.Like this, said right side section 2, linking arm 3, left side section 1, pull bar 4 four are the setting of " mouth " font, the stressed excessive and effect of being out of shape of left side section and right side section when preventing to pull the trigger with regard to playing.
This utility model still has multiple concrete embodiment, 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 (10)
1. the nail-head component of a stiching instrument, seaming and cutting device; Comprise a U-shaped frame; Said U-shaped frame is by the right side section that is arranged in parallel, left side section, and the linking arm of being located between right side section and the left side section is formed the U type setting of said U-shaped frame lateral openings; Said left side section is provided with nail anvil; Said right side section is provided with nail bin, it is characterized in that: the far-end of said right side section is provided with a pulling-rod frame, and said pulling-rod frame is provided with one can supply the through hole of pull bar slip or rotation; The far-end of said left side section be provided with relatively one be used for fixing said pull bar far-end retaining mechanism; The far-end of said pull bar is provided with the locking matching mechanism that matches with said retaining mechanism, and after the locking matching mechanism of said pull bar far-end lock onto the retaining mechanism on the section of said left side, the right side section of said U-shaped frame, linking arm, left side section and pull bar were the setting of " mouth " font.
2. the nail-head component of stiching instrument according to claim 1, seaming and cutting device; It is characterized in that: said pull bar comprises a cylindrical body; And pull bar far-end and pull bar near-end, being fixed with the leader on the said pull bar near-end, the locking matching mechanism of said pull bar far-end is one to be convexly set in the ellipse around boss on the said cylindrical body; The major diameter of said ellipse around boss is greater than the diameter of said body, and the minor axis of said ellipse around boss is less than the diameter of said body.
3. the nail-head component of stiching instrument according to claim 2, seaming and cutting device; It is characterized in that: the retaining mechanism on the section of said left side is a counterbore; The internal diameter of the large-diameter portion of said counterbore is equal to or greater than the major diameter of said ellipse around boss, and the interior profile of the minor diameter part of said counterbore and the cylindrical body of said pull bar and ellipse around boss are in the profile phase coupling of the common projection on minor diameter part surface.
4. the nail-head component of stiching instrument according to claim 3, seaming and cutting device is characterized in that: the profile of the through hole of said pulling-rod frame and the cylindrical body of said pull bar and ellipse around boss are in the profile phase coupling of the common projection on counterbore minor diameter part surface.
5. the nail-head component of stiching instrument according to claim 1, seaming and cutting device; It is characterized in that: said pull bar comprises a cylindrical body; And pull bar far-end and pull bar near-end; Be fixed with the leader on the said pull bar near-end, the locking matching mechanism of said pull bar far-end comprises a boss, and is located at the thin diameter section between said boss and the body.
6. the nail-head component of stiching instrument according to claim 5, seaming and cutting device; It is characterized in that: be located at the inner chamber on the section of left side in the retaining mechanism on the section of said left side comprises; Intracavity is symmetrically fixed with two springs in said, respectively is fixed with a block that has the inclined-plane on the adjacent activities end of said two springs relatively.
7. the nail-head component of stiching instrument according to claim 6, seaming and cutting device is characterized in that: the width of said block equals the length of said thin diameter section.
8. the nail-head component of stiching instrument according to claim 5, seaming and cutting device; It is characterized in that: be located at the inner chamber on the section of left side in the retaining mechanism on the section of said left side comprises; Intracavity is arranged with two shell fragments in said; All each is fixed by a shell fragment block one end of said two shell fragments, the shell fragment movable end of said two shell fragments under situation about not stressing each other distance less than the maximum outside diameter of boss.
9. the nail-head component of stiching instrument according to claim 1, seaming and cutting device; It is characterized in that: said pull bar comprises a cylindrical body; And pull bar far-end and pull bar near-end, being fixed with the leader on the said pull bar near-end, the locking matching mechanism of said pull bar far-end is a screw rod.
10. the nail-head component of stiching instrument according to claim 9, seaming and cutting device is characterized in that: the screwed hole of the retaining mechanism on the section of said left side for cooperating with said screw flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120435873 CN202355441U (en) | 2011-11-07 | 2011-11-07 | Pin head assembly of stitching instrument and stitching and cutting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120435873 CN202355441U (en) | 2011-11-07 | 2011-11-07 | Pin head assembly of stitching instrument and stitching and cutting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202355441U true CN202355441U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120435873 Expired - Fee Related CN202355441U (en) | 2011-11-07 | 2011-11-07 | Pin head assembly of stitching instrument and stitching and cutting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202355441U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083053A (en) * | 2011-11-07 | 2013-05-08 | 苏州天臣国际医疗科技有限公司 | Nail head assembly of stitching device and sewing cutting device |
| CN108472036A (en) * | 2015-12-31 | 2018-08-31 | 伊西康有限责任公司 | The surgical stapling device with crooked outer surface on anvil block |
| US10966719B2 (en) | 2015-12-31 | 2021-04-06 | Ethicon Llc | Method of applying staples in lower anterior bowel resection |
| US10973521B2 (en) | 2015-12-31 | 2021-04-13 | Ethicon Llc | Surgical stapler with variable height drivers for uniform staple formation |
| US11497493B2 (en) | 2015-12-31 | 2022-11-15 | Cilag Gmbh International | Surgical stapler with fixed jaw support pin |
-
2011
- 2011-11-07 CN CN 201120435873 patent/CN202355441U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083053A (en) * | 2011-11-07 | 2013-05-08 | 苏州天臣国际医疗科技有限公司 | Nail head assembly of stitching device and sewing cutting device |
| CN108472036A (en) * | 2015-12-31 | 2018-08-31 | 伊西康有限责任公司 | The surgical stapling device with crooked outer surface on anvil block |
| US10966719B2 (en) | 2015-12-31 | 2021-04-06 | Ethicon Llc | Method of applying staples in lower anterior bowel resection |
| US10973521B2 (en) | 2015-12-31 | 2021-04-13 | Ethicon Llc | Surgical stapler with variable height drivers for uniform staple formation |
| CN108472036B (en) * | 2015-12-31 | 2021-07-09 | 伊西康有限责任公司 | Surgical stapler having curved outer surface on anvil |
| US11497493B2 (en) | 2015-12-31 | 2022-11-15 | Cilag Gmbh International | Surgical stapler with fixed jaw support pin |
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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: 20120801 Termination date: 20121107 |