CN104739465A - Skin stapler - Google Patents
Skin stapler Download PDFInfo
- Publication number
- CN104739465A CN104739465A CN201310754500.XA CN201310754500A CN104739465A CN 104739465 A CN104739465 A CN 104739465A CN 201310754500 A CN201310754500 A CN 201310754500A CN 104739465 A CN104739465 A CN 104739465A
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- Prior art keywords
- needle
- mouth
- epidermis
- pressing plate
- threading
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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
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0482—Needle or suture guides
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a skin stapler comprising a base, a stapling needle and a first drive mechanism. The base is provided with an arc needle slot therein, a first needle hole corresponding to one end of the arc needle slot and a second needle hole corresponding to the other end of the arc needle slot. The stapling needle is arc shaped; the stapling needle fitting the arc needle slot is fitted into the arc needle slot. The first drive mechanism is mounted on the base. In the initial state, the stapling needle is retracted into the base; during stapling, the ends of the first and second needle holes of the base compress two sides of a wound to be stapled; the first drive mechanism drives the stapling needle to move along the arc needle slot, so that the stapling needle can pass through the first needle hole into the skin, pass out of the skin and pass into the second through hole in order. The first drive mechanism drives the staling needle to move in an arc path so as to effect the reduction in secondary injury caused by the arc path to the outer skin tissues, knotting is automated, and stapling efficiency is higher.
Description
Technical field
The invention relates to a kind of medical apparatus and instruments sewed up for wound.
Background technology
It is surgical common method for the treatment of that epidermis is sewed up; its purposes such as epidermis of wound is sewed up; mostly be postoperative wound to sew up; in addition; Minimally Invasive Surgery is little with its original wound now, healing is fast, farthest protect the features such as nervus vasculairs to obtain popularizes widely; but present stage doctor faces many epidermises and sews up a difficult problem:
A) secondary insult formed is sewed up
Doctor's sewing needle used mostly is circular arc, mostly is about 210 degree, sews up that to take the needle should be that arcuation takes the needle the most accurately, but is limited to the brain of people, nerve, muscle control ability and be difficult to accomplish.
Such as: suppose that pin length is 210 degree, it is 120 degree that sewing needle sews up radian in intraepidermal needle-like, in units of 1 degree, the direction of more than 120 times is at least needed to change, but most of doctor only can accomplish that the direction of about three times changes, in intraepidermal stitching action, the appearance being difficult to avoid is horizontal draws, horizontally pull, horizontal pushing away and hypodermic secondary insult is shown in formation.
B) stitching is difficult to carry out under Minimally Invasive Surgery condition
Such as: Minimally Invasive Surgery need cut liver and remove inner tumor tissues, need liver myometrial suture afterwards, it is very big that this treatment implements difficulty under operating in Wicresoft's condition, Minimally Invasive Surgery is generally by the passage of tubulose at abdominal cavity perforate surface, and long and narrow communication conduits defines huge bottleneck to needing the medical apparatus and instruments sewed up.
C) efficiency sewing up action is low
Suppose that necessity of table intradermic suture radian that takes the needle is 120 degree, the length of pin is 210 degree, existing sewing method is that syringe needle backshank is wanted all in epidermis (stroke is at least 210 degree), backshank still needs the stitching thread straining backshank after going out epidermis, stitching thread becomes nearly straight line from arcuation under epidermis, cuts off unnecessary stitching thread after completing the stitching thread knotting of epidermis; Then, doctor is that the second pin is threaded a needle again again.
Summary of the invention
The invention provides a kind of secondary damage and improve the epidermis stiching instrument sewing up efficiency when can effectively reduce stitching.
The invention provides a kind of epidermis stiching instrument, comprise pedestal, sewing needle and the first driving mechanism, described pedestal has the circular arc needle tray being positioned at its inside, first second of mouth and the corresponding described needle tray other end of threading a needle of corresponding described needle tray one end is threaded a needle mouth, described sewing needle is circular arc, described sewing needle mates with described needle tray and loads described needle tray, described first driving mechanism is installed on described pedestal, during original state, and described sewing needle retraction base interior; During stitching, first of described pedestal mouth, second mouth of threading a needle of threading a needle is pressed in the both sides of wound to be stapled, described first driving mechanism drives described sewing needle to move along described needle tray, enables described sewing needle be penetrated epidermis, pass epidermis and penetrate described second to be threaded a needle mouth by the described first mouth of threading a needle successively.
Described first angle of threading a needle mouth and the second arc section of threading a needle between mouth is less than the angle of described sewing needle.The needle point of sewing needle is an arc section from penetrating epidermis to the motion track passed epidermis, and namely this arc section is equivalent to first and threads a needle mouth and the second arc section of threading a needle between mouth.
The diameter of described needle point increases gradually backward from its cusp, and on described needle point, cover has diameter to fix and can connect sutural suture loop, thus when sewing needle stretches out, stitching thread is along with moving together; When sewing needle is return, suture loop and stitching thread be not along with movement.
Second of a described pedestal mouthful place of threading a needle is provided with knot that can be undone by a pull, and described knot that can be undone by a pull comprises the clasp of variable diameter, the diameter of described clasp by tightening up line traffic control, described in tighten up line and be connected with the second driving mechanism, the diameter of described clasp is greater than the diameter of described suture loop.
Described first driving mechanism comprises motor and driving member, and described motor drives described driving member to rotate, and described driving member coordinates with described sewing needle frictional fit or rack-and-pinion.Driving member is as live-roller, and this live-roller can utilize frictional force drives sewing needle to move in needle tray.Driving member also can be gear, and sewing needle correspondence is provided with sawtooth, and the rack-and-pinion formed by this gear and sawtooth is coordinated, and drives sewing needle to move.
Described pedestal comprises circular arc housing and pressing plate, described housing forms breach and in major arc shape, described pressing plate is fixed on described breach, the middle part indent of described pressing plate, described first mouth and second mouth of threading a needle of threading a needle all is located at described pressing plate, and described needle tray is located at described housing.
Described pressing plate comprises the first pressing plate and the second pressing plate, and described first pressing plate and the second pressing plate form V-arrangement, and described first and second mouth of threading a needle is located at first and second pressing plate described respectively.
The object that knot that can be undone by a pull is arranged is equivalent to stitching and terminates to tie a knot to stitching thread afterwards, during this epidermis staplers, take the needle, tie a knot and automatically carry out, during use, first calculate the wire length between suture loop and clasp, then option arranges knot that can be undone by a pull and controls the second driving mechanism of knot that can be undone by a pull elastic threads.
The invention has the beneficial effects as follows: drive sewing needle to do circular motion by the first driving mechanism, effectively reduce the secondary insult that circular arc motion track exocuticle tissue is caused, and also improve stitching efficiency.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is the structural representation of three different visual angles of present embodiment epidermis stiching instrument respectively;
Fig. 4 is the combined integrated structural representation of the sewing needle of present embodiment, stitching thread and suture loop;
Fig. 5 is the structural representation of the housing of present embodiment;
Fig. 6 is the combined integrated structural representation of the housing of present embodiment, pressing plate and sewing needle;
Fig. 7 is the combined integrated structural representation of multiple present embodiment epidermis stiching instrument.
Detailed description of the invention
By reference to the accompanying drawings the present invention is described in further detail below by detailed description of the invention.
As shown in Figures 1 to 6, present embodiment epidermis stiching instrument comprises pedestal 1, sewing needle 2 and the first driving mechanism 3.Pedestal 1 comprises housing 4, pressing plate 5 and end cap 6.Housing 4 is circular arc, and it forms breach and in major arc shape, the inwall of housing is provided with circular arc needle tray 41.This breach closed by pressing plate 5, it comprises the first pressing plate 51 and the second pressing plate 52, first pressing plate connects the side of breach, second pressing plate connects the opposite side of breach, and this first pressing plate 51 and the second pressing plate 52 form V-arrangement, the first pressing plate 51 has first threading a needle mouth 53 of being communicated with enclosure interior, and the second pressing plate 52 has second threading a needle mouth 54 of being communicated with enclosure interior, one end of needle tray 41 is connected first and threads a needle mouth 53, and the other end of needle tray 41 is connected second and threads a needle mouth 54.Housing is connected by end cap 6 with the edge of the homonymy of pressing plate.
Sewing needle 2 is in major arc shape, and it mates with the needle tray 41 of housing, and this sewing needle 2 can be stuck in this needle tray 41 and also can move along this needle tray 41, and namely the motion track of sewing needle is arc section.Sewing needle inwardly can penetrate human epidermal from the first mouth of threading a needle, and can penetrate second to thread a needle mouth from epidermis after passing.Sewing needle has needle point 21 and backshank 23, the shape of this needle point be from cusp 22 backward diameter become large gradually, this is the direction to backshank 23 backward.
The needle point of sewing needle can overlap the suture loop 7 having diameter fixing, and this suture loop 7 is connected with stitching thread 8.This suture loop and stitching thread can be made up of surgical operation suture, as gutstring.
First driving mechanism 3 comprises power source 31 and drive mechanism 32, and power source is as motor, and drive mechanism is as live-roller, this motor and pedestal are fixed, as being directly fixed on end cap, live-roller and motor shaft are fixed, live-roller to be pressed on sewing needle and with sewing needle frictional fit.
During original state, sewing needle contracts completely in base interior, and namely sewing needle is all stuck in needle tray, and now, needle point can be threaded a needle mouth facing to first, and backshank can be threaded a needle mouth facing to second, and suture loop is enclosed within needle point.During stitching, stiching instrument be pressed on the epidermis around wound, now, pressing plate is directly pressed on epidermis, and pressing plate covers wound and wound is positioned on the motion track of sewing needle; Then, starter motor, live-roller utilizes frictional force to move along needle tray with sewing needle, thus enters epidermis internal layer from the first mouth of threading a needle, and finally can penetrate second and to thread a needle mouth.When carrying out Minimally Invasive Surgery stitching, this stiching instrument is located by micro-wound needle holder.During non-Minimally Invasive Surgery, this stiching instrument can be positioned on epidermis by doctor is hand-held.
Stiching instrument can also comprise knot that can be undone by a pull 9, and this knot that can be undone by a pull 9 is placed on the second pressing plate 52.Knot that can be undone by a pull comprises the clasp 91 of variable diameter and tightens up line 92, and this clasp 91 is located at second and threads a needle mouth place, and the diameter of this clasp can be greater than the diameter of suture loop.Tighten up line to be driven by the second driving mechanism, under the driving of the second driving mechanism, tighten up line and can tighten up clasp, make the reduced of clasp.Clasp 91 slightly can be bonded in second and to thread a needle mouth 54 place, and during owing to sewing up, clasp 91 place does not disturb external force, generally only has needle point can rip this and slightly bonds.The diameter of clasp 91 is greater than the second bore of threading a needle mouth 54, and it second can be threaded a needle mouth 54 around this.
The work process of epidermis stiching instrument is as follows:
1) suture loop is enclosed within needle point; Knot that can be undone by a pull is located at second of pressing plate to thread a needle mouth place;
2) starter motor, live-roller utilizes frictional force drives sewing needle to move, needle point penetrates mouth with stitching thread from first and enters epidermis internal layer, then pass from epidermis internal layer at opposite side, and penetrate clasp and second successively and to thread a needle mouth, now, clasp entangles stitching thread and needle point, and clasp is between epidermis and suture loop;
3) the second driving mechanism starts, and pulls and tightens up line, make the diameter of clasp progressively reduce to prevent suture loop from returning inside epidermis, and while pulling and tightening up line, the first driving mechanism drives the former road of sewing needle progressively to return;
4) clasp tightens up knotting when completing completely, and base interior return by sewing needle, and so far stitching action completes.
For epidermis stiching instrument, it has housing, and inner walls is provided with circular arc needle tray, and circular arc sewing needle is stuck in this needle tray and also can moves along this needle tray.Housing can be circular arc, also can be other shapes, only needs the needle tray that can provide circular arc.Housing is fixed with pressing plate, and pressing plate, can indent in the middle part of this pressing plate for being pressed in epidermis around wound when sewing up, thus avoids directly being pressed in wound.Pressing plate can have the first mouth and second of threading a needle and to thread a needle mouth, and this first mouth of threading a needle can be connected with one end of needle tray, and this second mouth of threading a needle can be connected with the other end of needle tray.
For epidermis stiching instrument, it has the first driving mechanism for driving sewing needle.First driving mechanism can comprise drive mechanism and power source, and power source does circular motion (namely the movement locus of sewing needle is one section of circular arc) by drive mechanism with sewing needle.Power source is as motor, and drive mechanism is as being fixed on the live-roller on motor shaft, and this live-roller utilizes frictional force drives sewing needle to move.Time initial, live-roller can be pressed in the middle part of sewing needle.Motor can have multiple, and the motor shaft of each motor all can be fixed with live-roller, and each live-roller can the different parts of corresponding needle tray, as two ends and the middle part of corresponding needle tray.Motor shaft also can be fixed with gear, and sewing needle correspondence is provided with sawtooth, drives this sewing needle to move by the engagement of gear and sawtooth.
For epidermis stiching instrument, it has the second driving mechanism tightening up line for driving knot that can be undone by a pull, during the second driving mechanism work, moves and the clasp that tightens up knot that can be undone by a pull with tightening up line.
For epidermis stiching instrument, the needle point of sewing needle from penetrate epidermis to pass epidermis the track of process can be defined as stitching arc section, the angle of this stitching arc section is A.The angle of circular arc needle tray is B, A+B=360 degree, as angle A be 120 degree time, then the angle B of needle tray is 240 degree.Because sewing needle moves in needle tray, needle tray can extend to second and to thread a needle mouth from the first mouth of threading a needle, now, and A+B=360 degree.Certainly, near first thread a needle mouth position or also can not needle tray be set near the second position of threading a needle mouth, now, A+B<360 degree.General, A is less than 180 degree, and A<B.
For epidermis stiching instrument, when not sewing up, sewing needle retraction base interior, now, needle point does not stretch out first and to thread a needle mouth, and backshank can stretch out or not stretch out second and to thread a needle mouth.In order to avoid scratching epidermis when entering human body, to thread a needle mouth it is preferred that backshank does not stretch out second.
For epidermis stiching instrument, multiplely can be assembled into one, and form an epidermis stiching instrument group, as shown in Figure 7.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (7)
1. an epidermis stiching instrument, it is characterized in that, comprise pedestal, sewing needle and the first driving mechanism, described pedestal has the circular arc needle tray being positioned at its inside, first second of mouth and the corresponding described needle tray other end of threading a needle of corresponding described needle tray one end is threaded a needle mouth, described sewing needle is circular arc, and described sewing needle mates with described needle tray and loads described needle tray, and described first driving mechanism is installed on described pedestal, during original state, described sewing needle retraction base interior; During stitching, first of described pedestal mouth, second mouth of threading a needle of threading a needle is pressed in the both sides of wound to be stapled, described first driving mechanism drives described sewing needle to move along described needle tray, enables described sewing needle be penetrated epidermis, pass epidermis and penetrate described second to be threaded a needle mouth by the described first mouth of threading a needle successively.
2. epidermis stiching instrument as claimed in claim 1, it is characterized in that, the described first angle of threading a needle mouth and the second arc section of threading a needle between mouth is less than the angle of described sewing needle.
3. epidermis stiching instrument as claimed in claim 1, it is characterized in that, the diameter of described needle point increases gradually backward from its cusp, and on described needle point, cover has diameter to fix and can connect sutural suture loop.
4. epidermis stiching instrument as claimed in claim 1, it is characterized in that, second of a described pedestal mouthful place of threading a needle is provided with knot that can be undone by a pull, described knot that can be undone by a pull comprises the clasp of variable diameter, the diameter of described clasp is by tightening up line traffic control, the described line that tightens up is connected with the second driving mechanism, and the diameter of described clasp is greater than the diameter of described suture loop.
5. epidermis stiching instrument as claimed in claim 1, it is characterized in that, described first driving mechanism comprises motor and driving member, and described motor drives described driving member to rotate, and described driving member coordinates with described sewing needle frictional fit or rack-and-pinion.
6. epidermis stiching instrument as claimed in claim 1, it is characterized in that, described pedestal comprises circular arc housing and pressing plate, described housing forms breach and is major arc shape, described pressing plate is fixed on described breach, the middle part indent of described pressing plate, the described first mouth and second mouth of threading a needle of threading a needle all is located at described pressing plate, and described needle tray is located at described housing.
7. epidermis stiching instrument as claimed in claim 6, it is characterized in that, described pressing plate comprises the first pressing plate and the second pressing plate, and described first pressing plate and the second pressing plate form V-arrangement, and described first and second mouth of threading a needle is located at first and second pressing plate described respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754500.XA CN104739465B (en) | 2013-12-31 | 2013-12-31 | Skin stapler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754500.XA CN104739465B (en) | 2013-12-31 | 2013-12-31 | Skin stapler |
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| CN104739465A true CN104739465A (en) | 2015-07-01 |
| CN104739465B CN104739465B (en) | 2017-02-15 |
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| CN201310754500.XA Active CN104739465B (en) | 2013-12-31 | 2013-12-31 | Skin stapler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049389A (en) * | 2017-01-20 | 2017-08-18 | 湖州市中医院 | The utensil that a kind of convenience is sutured in laparoscopic surgery |
| CN107854163A (en) * | 2017-10-20 | 2018-03-30 | 南京鼓楼医院 | A kind of circular arc sting device |
| CN109893185A (en) * | 2019-03-08 | 2019-06-18 | 中南大学湘雅三医院 | Stitching devices |
| CN110025345A (en) * | 2019-05-17 | 2019-07-19 | 邦尼医疗科技(常州)有限公司 | A kind of sewing needle |
| CN112914637A (en) * | 2021-03-04 | 2021-06-08 | 象山县第一人民医院医疗健康集团 | Automatic stitching instrument |
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| CN202619740U (en) * | 2012-04-29 | 2012-12-26 | 中南大学 | Needle-arranging and thread-leading stitching instrument |
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| CN107049389A (en) * | 2017-01-20 | 2017-08-18 | 湖州市中医院 | The utensil that a kind of convenience is sutured in laparoscopic surgery |
| CN107854163A (en) * | 2017-10-20 | 2018-03-30 | 南京鼓楼医院 | A kind of circular arc sting device |
| CN107854163B (en) * | 2017-10-20 | 2019-10-11 | 南京鼓楼医院 | A kind of circular arc sting device |
| CN109893185A (en) * | 2019-03-08 | 2019-06-18 | 中南大学湘雅三医院 | Stitching devices |
| CN109893185B (en) * | 2019-03-08 | 2024-04-02 | 中南大学湘雅三医院 | Suturing device |
| CN110025345A (en) * | 2019-05-17 | 2019-07-19 | 邦尼医疗科技(常州)有限公司 | A kind of sewing needle |
| CN112914637A (en) * | 2021-03-04 | 2021-06-08 | 象山县第一人民医院医疗健康集团 | Automatic stitching instrument |
| CN112914637B (en) * | 2021-03-04 | 2022-10-18 | 象山县第一人民医院医疗健康集团 | Automatic stitching instrument |
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