CN103479413A - Connection structure for heads of minimally invasive operating forceps - Google Patents
Connection structure for heads of minimally invasive operating forceps Download PDFInfo
- Publication number
- CN103479413A CN103479413A CN201310462011.7A CN201310462011A CN103479413A CN 103479413 A CN103479413 A CN 103479413A CN 201310462011 A CN201310462011 A CN 201310462011A CN 103479413 A CN103479413 A CN 103479413A
- Authority
- CN
- China
- Prior art keywords
- core
- arc
- groove
- stinging
- pincers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2933—Transmission of forces to jaw members camming or guiding means
- A61B2017/2934—Transmission of forces to jaw members camming or guiding means arcuate shaped guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2938—Independently actuatable jaw members, e.g. two actuating rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2939—Details of linkages or pivot points
- A61B2017/294—Connection of actuating rod to jaw, e.g. releasable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2943—Toothed members, e.g. rack and pinion
Abstract
The invention relates to a connection structure for heads of minimally invasive operating forceps. The head of a push-pull rod is of an outer semi-circular structure. Circular-arc-shaped bosses are arranged on the two sides of the outer semi-circular structure. A groove and a stop block which are used for limiting a mechanism are closely adjacent to the right side of each circular-arc-shaped boss. The rear portion of a meshed core is of a hollow structure. An inner semi-circular structure is arranged in the hollow structure. The two sides of the inner semi-circular structure are respectively provided with a circular-arc-shaped groove. The right side wall of the inner semi-circular structure is provided with a small arc-shaped stop block. The two sides of the outer portion of the meshed core are respectively provided with an arc-shaped groove. An opening is formed in the bottom of the front end of a forceps tube; a long groove is formed in the upper face of the rear end of the forceps tube; arc-shaped bosses are arranged on the two sides of the inner wall of the long groove of the forceps tube. The meshed core is connected with the forceps tube through the mode that the arc-shaped grooves in the outer portion of the meshed core are embedded in the arc-shaped bosses inside the forceps tube. The push-pull rod is connected with the meshed core through the mode that the outer semi-circular structure of the head and the circular-arc-shaped bosses are embedded in the inner semi-circular structure of the hollow part of the meshed core and the circular-arc-shaped grooves respectively. The groove which is used for limiting the mechanism and formed in one side of the push-pull rod is combined with the small arc-shaped stop block arranged on one side of the inner wall of the meshed core in an embedded mode.
Description
Technical field
The present invention relates to a kind of Minimally Invasive Surgery pincers, be specifically related to a kind of Minimally Invasive Surgery clamp head part frame for movement.
Background technology
Operating forceps of the prior art, mainly contain the compositions such as binding clip, connecting rod, link, rivet.Often by rivet, form hinges between connecting rod and binding clip, this assembly method operation more complicated and higher to technological requirement.Minimally Invasive Surgery pincers external diameter only has several millimeters, and part is all more accurate, and during docking, comparatively difficulty, efficiency are low, and the rivet ease of connection causes stress concentration.The processing such as autoclave sterilization of operating theater instruments routine in addition, can make operating forceps edge rust, and permanent use may cause metallic particles to come off, and even rivet fracture, bring serious unexpected injury to the patient.
Summary of the invention
Primary and foremost purpose of the present invention, exactly in order to overcome the existing deficiency of existing Minimally Invasive Surgery pincers rivet, and provide a kind of Minimally Invasive Surgery clamp head part syndeton, this structure be without rivet from the formula mechanical mechanism, and can optimize the assembly method of binding clip part.
In order to achieve the above object, the present invention has adopted following technical scheme:
A kind of Minimally Invasive Surgery clamp head part syndeton, comprise push-pull bar, sting core, clamp pipe, be characterized in: the push-pull bar head is outer semicircular structure, and outer semicircular structure both sides are provided with arc cam, near the arc cam right side, is provided with a groove for position-limit mechanism and block; Stinging the core rear portion is hollow structure, is provided with interior semicircular structure in hollow structure, and interior semicircular structure both sides are provided with circular groove, and interior semicircular structure right side wall is provided with a little block arc, stings the core both sides external and is provided with arc groove; Pincers pipe front bottom end has an opening, has long recess above rear end, and the long recess inwall both sides of pincers pipe are respectively equipped with arc boss; Stinging core is connected with the pincers pipe by the inner arc boss of arc groove embedding pincers pipe of stinging the core outside; Push-pull bar by the outer semicircular structure of head and arc cam corresponding embed sting the interior semicircular structure of core hollow bulb with in circular groove with sting core and be connected, it is mutually chimeric with the little block arc of stinging in-core wall one side that push-pull bar one side is used for the groove of position-limit mechanism.
The front end of stinging core is provided with seaming on operating forceps, and on operating forceps, seaming is laciniation, and facewidth degree is 1mm.
The cross section of pincers pipe be oval, and oval major diameter is 4mm, and the front end that clamps pipe is provided with seaming under operating forceps, and under operating forceps, the seaming angle that is upturned is 17 °.
After stinging core and the pincers pipe being connected, the mutual chimeric self-locking of arc boss of stinging arc groove with the pincers pipe of core; The arc cam of push-pull bar and the mutual chimeric self-locking of circular groove of stinging core inner.
The invention has the beneficial effects as follows:
The whole employing without pin of the present invention connects, and the anteroposterior position in-migration by push-pull bar drives to be stung core and do opening and closing and sting and cut motion, can bear larger biting force; The operation binding clip only by push-pull bar, sting core and pincers pipes three parts form, can reduce the thickness of binding clip, be convenient to deeply narrower operative space free operant.
The accompanying drawing explanation
Fig. 1 is STRUCTURE DECOMPOSITION schematic diagram of the present invention;
Fig. 2 is the core open configuration front view of stinging of the present invention;
Fig. 3 is that the core of stinging of the present invention opens the polycrystalline substance schematic perspective view;
Fig. 4 is core and the pincers pipe assembling process schematic diagram stung of the present invention;
Fig. 5 is push-pull bar of the present invention and stings core assembling process schematic diagram.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples are only for the present invention is described but not for limiting scope of the present invention.
Referring to Fig. 1, coordinate Fig. 2, Fig. 3, Minimally Invasive Surgery clamp head part syndeton of the present invention, parts are easy to assembly and have an auto-lock function.It comprises push-pull bar 1, stings core 2, clamps pipe 3.Push-pull bar 1 is force transmission mechanism, stings core 2 for seaming on the operating forceps head, and pincers pipe front end 31 is seaming under the operating forceps head; Push-pull bar 1 with sting core 2 and be connected, sting core 2 and be positioned at lower seaming 31 inside, the anteroposterior position in-migration by push-pull bar 1 drives to be stung core 2 and does opening and closing and sting and cut motion.Easy to assembly between part, manual operations can complete the assembling between each part of binding clip.
Push-pull bar 1 head is outer semicircular structure 11, and is provided with arc cam 12 in both sides, and and then arc cam 12 part right sides are provided with the groove for position-limit mechanism 13 and a block 14.Push-pull bar relies on the outer semicircular structure 11 of head and chimeric the entering of arc cam 12 to sting core 2 inside.
The cross section of pincers pipe 3 is ellipses that major diameter is 4mm, and the lower seaming angle that is upturned is 17 °, and front end is the bottom opening feature, and pincers pipe 3 head inwall both sides are respectively equipped with arc boss mechanism 32.
The outer semicircular structure 11 of push-pull bar 1 head is concentric circular and big or small identical with semicircular structure in the hollow of stinging core 2 21.The arc cam 12 of push-pull bar 1 head is that concentric circular and size are identical with circular groove 22 structures of stinging core 1 inner both sides setting.Push-pull bar 1 one sides can be mutually chimeric with the little block arc 23 of stinging core 2 inwall one sides for the groove 13 of position-limit mechanism.
Stinging the arc groove 24 of core 2 both sides external settings and arc boss mechanism 32 structures of pincers pipe 3 inner both sides setting is that concentric circular and size are identical.
Referring to Fig. 4, Fig. 5, assembly manipulation of the present invention must first assemble stings core 2 and pincers pipe 3, and the inner arc boss 32 of the arc groove 24 by stinging the core outside after stinging core 2 and being inverted and the pincers pipe chimeric core 2 of stinging mutually slips into the inner arc boss 32 of pincers pipe by respective rail 24 and completes first step assembling; Then the arc cam 12 by the push-pull bar head after push-pull bar 1 being inverted and the circular groove 22 of stinging core inner are mutually chimeric to be slipped into push-pull bar to sting in-core groove 22 and can complete the second step assembling by respective rail 12.
After stinging core 2 and clamping pipe 3 assemblings, sting the mutual chimeric first step that completes self-locking of arc boss 32 that core 2 just relies on self arc groove 24 with pincers pipe; The arc cam 12 of push-pull bar and mutual chimeric second one of completing self-locking of circular groove 22 who stings core inner.After self-locking by this two step, parts will can not skid off track separately under non-external force.
Claims (4)
1. a Minimally Invasive Surgery clamp head part syndeton, comprise push-pull bar (1), sting core (2), clamp pipe (3), it is characterized in that: described push-pull bar (1) head is outer semicircular structure (11), outer semicircular structure (11) both sides are provided with arc cam (12), near arc cam (12) right side, are provided with a groove for position-limit mechanism (13) and block (14); It is described that to sting core (2) rear portion be hollow structure, be provided with interior semicircular structure (21) in hollow structure, interior semicircular structure (21) both sides are provided with circular groove (22), the right side wall of interior semicircular structure (21) is provided with a little block arc (23), stings the core both sides external and is provided with arc groove (24); The front bottom end of described pincers pipe (3) has an opening, has long recess above rear end, and the long recess inwall both sides of pincers pipes (3) are respectively equipped with arc boss (32); The described core (2) of stinging embeds the inner arc boss (32) of pincers pipes (3) and manages (3) with pincers and be connected by stinging the outside arc groove (24) of core (2); Described push-pull bar (1) by the outer semicircular structure (11) of head and arc cam (12) corresponding embed the interior semicircular structure (21) of stinging core (2) hollow bulb and circular groove (22) interior with sting core (2) and be connected, described push-pull bar (1) one side is used for the groove (13) of position-limit mechanism and stings the little block arc (23) of core (2) inwall one side mutually chimeric.
2. Minimally Invasive Surgery clamp head part syndeton according to claim 1, it is characterized in that: the described front end (25) of stinging core (2) is provided with seaming on operating forceps, and on operating forceps, seaming is laciniation (26), and facewidth degree is 1mm.
3. Minimally Invasive Surgery clamp head part syndeton according to claim 1, it is characterized in that: the cross section of described pincers pipe (3) is for oval, oval major diameter is 4mm, and the front end (31) of pincers pipes (3) is provided with seaming under operating forceps, and under operating forceps, the seaming angle that is upturned is 17 °.
4. Minimally Invasive Surgery clamp head part syndeton according to claim 1 is characterized in that: described sting core (2) and pincers pipes (3) and be connected after, the arc groove (24) of stinging core (2) and pincers are managed the mutual chimeric self-locking of arc boss (32) of (3); The arc cam (12) of described push-pull bar (1) and the mutual chimeric self-locking of circular groove (22) of stinging core inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462011.7A CN103479413A (en) | 2013-10-08 | 2013-10-08 | Connection structure for heads of minimally invasive operating forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462011.7A CN103479413A (en) | 2013-10-08 | 2013-10-08 | Connection structure for heads of minimally invasive operating forceps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103479413A true CN103479413A (en) | 2014-01-01 |
Family
ID=49820251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310462011.7A Pending CN103479413A (en) | 2013-10-08 | 2013-10-08 | Connection structure for heads of minimally invasive operating forceps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103479413A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3527152A1 (en) * | 2018-02-15 | 2019-08-21 | University of Dundee | Tool for a microinvasive surgical instrument and microinvasive surgical instrument |
| EP3714813A1 (en) * | 2019-03-29 | 2020-09-30 | Gebrüder Zepf Medizintechnik GmbH & Co. KG | Surgical instrument |
| CN114711900A (en) * | 2022-04-11 | 2022-07-08 | 合肥市五洋医疗器械有限公司 | Medical operating forceps |
| WO2022186967A1 (en) * | 2021-03-02 | 2022-09-09 | Covidien Lp | End effector drive mechanisms for surgical instruments such as for use in robotic surgical systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712545A (en) * | 1984-04-05 | 1987-12-15 | Acufex Microsurgical, Inc. | Surgical instrument |
| US20050119693A1 (en) * | 2003-12-02 | 2005-06-02 | Richard Wolf Gmbh | Medical forceps |
| US20060161190A1 (en) * | 2005-01-19 | 2006-07-20 | Gadberry Donald L | Disposable laparoscopic instrument |
| CN102090914A (en) * | 2011-03-16 | 2011-06-15 | 上海交通大学 | Minimally invasive surgery (MIS) forceps head |
-
2013
- 2013-10-08 CN CN201310462011.7A patent/CN103479413A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712545A (en) * | 1984-04-05 | 1987-12-15 | Acufex Microsurgical, Inc. | Surgical instrument |
| US20050119693A1 (en) * | 2003-12-02 | 2005-06-02 | Richard Wolf Gmbh | Medical forceps |
| US20060161190A1 (en) * | 2005-01-19 | 2006-07-20 | Gadberry Donald L | Disposable laparoscopic instrument |
| CN102090914A (en) * | 2011-03-16 | 2011-06-15 | 上海交通大学 | Minimally invasive surgery (MIS) forceps head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3527152A1 (en) * | 2018-02-15 | 2019-08-21 | University of Dundee | Tool for a microinvasive surgical instrument and microinvasive surgical instrument |
| EP3714813A1 (en) * | 2019-03-29 | 2020-09-30 | Gebrüder Zepf Medizintechnik GmbH & Co. KG | Surgical instrument |
| WO2022186967A1 (en) * | 2021-03-02 | 2022-09-09 | Covidien Lp | End effector drive mechanisms for surgical instruments such as for use in robotic surgical systems |
| CN114711900A (en) * | 2022-04-11 | 2022-07-08 | 合肥市五洋医疗器械有限公司 | Medical operating forceps |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |