CN102512218B - Controllable self-bending suture needle - Google Patents
Controllable self-bending suture needle Download PDFInfo
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- CN102512218B CN102512218B CN201110458252.5A CN201110458252A CN102512218B CN 102512218 B CN102512218 B CN 102512218B CN 201110458252 A CN201110458252 A CN 201110458252A CN 102512218 B CN102512218 B CN 102512218B
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- needle
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Abstract
The invention provides a controllable self-bending suture needle, which is used for an endoscopic surgery. The controllable self-bending suture needle comprises a needle head, a needle body, a needle placing tube and a needle feeding mechanism. The needle body is tubular and is inserted by the needle head at the tail end part. The needle body is entirely arranged in the needle placing tube in a passing-through manner. One end of the needle placing tube is provided with a rigid tubular end and the other end of the needle placing tube is fixedly coupled with the needle feeding mechanism. The tail end part of the needle body is pre-formed to be a circular arc shape when the tail end part is not limited, and the other end of the needle body is connected with the needle feeding mechanism. The tail end part of the needle body can be contained in the rigid tubular end of the needle placing tube or exposed outside the rigid tubular end of the needle placing tube by pushing of the needle feeding mechanism. The tail end part of the needle body is contained in the rigid tubular end of the needle placing tube to be limited, so as to form a shape which is consistent to the shape of a hollow inner cavity. One end of the needle head is provided with a blade edge for penetrating tissues, and the diameter of the other end of the needle head is slightly less than the internal diameter of the needle body. The needle head can be assembled at the tail end part of the needle body. The controllable self-bending suture needle provided by the invention has the advantages of simple structure and convenience in control. The complex space movement of tissue penetration is simplified to be a linear pushing movement of the needle feeding mechanism to the needle body and a bunching device, and the tissue suture difficulty is simplified.
Description
Technical field
The present invention relates to one for operating medical apparatus and instruments, relate in particular to a kind of for carry out structure and the using method of the suture needle of performing the operation by endoscope.
Background technology
In current widely used wound sew application, doctor use 3/8ths or the stainless steel suture needle 1 of rigidity of semi arch wound is carried out to sew application.As shown in Figure 1, the semicircle profile of suture needle has axis 2 in suture needle 1.One end of this tradition rustless steel suture needle 1 molds sharp sharp sword, is convenient to penetrate organ-tissue; The cross section of the other end is shaped to non-round polygon (as triangle), is convenient to effective clamping of needle forceps.It is the polygonal one end of non-circle that suture is connected to cross section.
Using the sew application of traditional suture needle to be divided into two steps, is respectively tissue penetration and suture knotting.As shown in Figure 2, in tissue penetration action, doctor need to use two needle forceps to cooperatively interact: first use one needle forceps clamping suture needle 1, the axis 2 of the semicircle profile of blind stitching pin rotates needle body, starts to penetrate the action of organ-tissue; When suture needle 1 is when organizing opposite side to pass,, continue to rotate around the axis 2 of the semicircle profile of this suture needle, until the complete penetrate tissue of suture needle 1 the bared end of needle forceps clamping suture needle 1 with other one.Now, because one end of suture needle 1 is connected with suture 3, suture 3 has also penetrated tissue completely.Under such state, doctor can continue to be used in conjunction with two suture needles and clamp, and realizes follow-up knotting action.
From aforesaid description, the realization of tissue penetration, need to complete a twist operation by the cooperation of two operating theater instruments, mostly be an elongated rigidity straight-bar in the profile of needle forceps, the action of this tissue penetration is difficult for accurately realizing, thereby makes whole stitching action also all become the difficult point in various operation techniques.If tissue penetration need to be undertaken by the mode of chamber Jing Yi Wicresoft, more increase extra difficulty to this task; In a lot of Minimally Invasive Surgerys, use the tissue penetration action of traditional suture needle also cannot implement.
U.S. patent of invention US5219358, name is called " Shape memory effect surgical needles (shape memory effect surgical sewing needle) ", August 21 1991 applying date, disclose a kind of surgical suture needle that adopts marmem to manufacture, it has low temperature state and the condition of high temperature.At its low temperature state, this suture needle be shaped as thin straight strip, can slip into a straight tube; In its condition of high temperature, the shape of this suture needle becomes default arc, for the stitching of endoscopic surgical.But the suture needle of this patent needs cryopreservation before use, and puts into human intracavity by the apparatus pipeline of endoscope fast, enter after human body, make the reach a high temperature arc of state of suture needle by heating, be used further to operating stitching.In addition, this suture needle still needs to use needle forceps clamping, uses inconvenience in the narrow working place of endoscopic surgery.
U.S. patent of invention US5573542, name is called " Endoscopic suture placement tool (endoscope's suture place tool) ", August 17 1994 applying date, disclose a kind of Microendoscopic and placed the instrument of suture, suture needle and drive rod that it makes shape-memory material are bonded together.In the time that this instrument is positioned at the apparatus pipeline of endoscope, its global shape is consistent with apparatus pipeline; In the time that drive rod stretches out from the apparatus pipeline of endoscope, its end bent becomes hook-shaped, uses as suture needle, and the head of this suture needle is also provided with pinprick, for suture is set, installs or unloads suture and all need to could realize by means of the help of other apparatuses.But the pinprick of this patent gets out on needle main body, clamp and unclamp suture for " passive " (have other apparatuses auxiliary).This patent pinprick gets out on needle main body, does not possess the condition realizing on little external diameter (below diameter 1mm) needle body.In addition, this patent apparatus is rhombus by pipeline INTERFACE DESIGN, and end needle body can not rotate around place needle tubing axis.
U.S. patent of invention US6592559, name is called " Hollow; curved; superlastic medical needle (hollow, bending super-elasticity medical needle) ", and 1999 applyings date December 9 days discloses a kind of hollow needle tubing of manufacturing with elastic material, for injection, the shape of this needle tubing when unfettered is bending, but in the time introducing human body by a coaxial trocar sheath, can in the passage of this trocar sheath, suffer restraints and straightens.When this hollow needle tubing is from trocar sheath stretches out, reply again the curved shape when unfettered.This invention does not have needle point, is not with suture, does not therefore possess puncture and sews up function.
Therefore, those skilled in the art is devoted to develop a kind of suture needle easy to use, for endoscopic surgery.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of suture needle easy to use, for endoscopic surgery
For achieving the above object, the invention provides a kind of controllable self-bending suture needle, for the operation of carrying out by endoscope, comprise syringe needle, needle body, place needle tubing and Song Zhen mechanism; Wherein, described needle body is tubulose, and distal end is equiped with described syringe needle; Described needle body again entirety is arranged in the needle tubing of described place; Described place needle tubing has hollow lumen, and at least one end is rigid tubular end, and the other end and described Song Zhen mechanism are fixedly connected; One end of described needle body is acra, and described acra is the first shape of the circular arc of molding in advance when unfettered; The other end of described needle body is connected with described Song Zhen mechanism, under the propelling movement of described Song Zhen mechanism, described needle body optionally moves and rotates with respect to described place needle tubing, make the described acra of described needle body can be accommodated in the described rigid tubular end of described place needle tubing within or be exposed to required deflection angle outside the described rigid tubular end of described place needle tubing; Wherein, within described acra is accommodated in described rigid tubular end time, described acra suffers restraints, and becomes second shape consistent with the described hollow lumen of described place needle tubing at described rigid tubular end place; One end of described syringe needle is provided with sword limit, needs the tissue of suture site for puncturing; Described syringe needle can be made with the metal of easily processing (as rustless steel, rather than unmanageable Nitinol), is drilled with aperture on syringe needle, for through suture; The diameter of the other end of described syringe needle is slightly less than the internal diameter of described needle body, can be assembled to the described acra of described needle body or take off from described needle body.
Preferably, described controllable self-bending suture needle, the described acra of at least described needle body is made up of the elastomeric material with strong restoring force.The elastomeric material further, with strong restoring force is Nitinol.
Preferably, in described controllable self-bending suture needle, the described rigid tubular end of described place needle tubing is straight tube-like, and described the second shape is substantially straight.Or in described controllable self-bending suture needle, the described rigid tubular end of described place needle tubing is bent tube form, described second is shaped as bending.In addition, the global shape of place needle tubing except rigid tubular end can be also linear or shaped form.
Preferably, in described controllable self-bending suture needle, on described syringe needle, offer pinprick, so that suture therefrom passes and is linked on described syringe needle.Further, the external diameter at the middle part of described syringe needle is greater than the internal diameter of described needle body, and, the blunt end from described middle part to described syringe needle, there is descending tapering transition structure; The described distal inner chamber of the described needle body of tubulose has the bell-mouth structure of air expanding gradually from inside to outside, matches with described tapering transition structure, and in the time that described needle body moves forward, described needle body can push described syringe needle and move forward together; In the time that described needle body moves backward, if the frictional force that described syringe needle is organized or be held fixingly, described syringe needle and described needle body depart from.Described tapering transition structure and described bell-mouth structure of air can be taper seat, or be can be mutually identical curved surface.
The present invention can be applicable to hard pipe type endoscope or hose type endoscope.
The present invention compared with prior art has the following advantages and effect:
The present invention is simple in structure, control easy, the controllable self-bending suture needle of design is reduced to Song Zhen mechanism the motion of the complex space of tissue penetration the straight line of needle body and syringe needle is pushed to motion, can greatly simplify the overall difficulty of tissue apposition, and the syringe needle of separate type greatly facilitates the enforcement of knotting action.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the rigid joint needle construction schematic diagram of prior art;
Fig. 2 is the motion schematic diagram that tissue penetration is implemented in the rigidity suture needle of prior art;
Fig. 3 is the structural representation of a preferred embodiment of the present invention;
Fig. 4 is that syringe needle place embodiment illustrated in fig. 3 starts the three-dimensional view before puncture;
Fig. 5 is the internal structure schematic diagram of Fig. 4;
Fig. 6 is that syringe needle place embodiment illustrated in fig. 3 completes the three-dimensional view while puncture;
Fig. 7 is embodiment illustrated in fig. 3 after needle body retraction, the schematic diagram that syringe needle and needle body depart from;
Fig. 8 is the structural representation of another preferred embodiment of the present invention;
Fig. 9 and Figure 10 are the sectional perspective views that syringe needle embodiment illustrated in fig. 8 is in different visual angles.
The specific embodiment
The essential meaning that uses suture needle to carry out tissue penetration is that suture is penetrated to wound (or other need suture) both sides, and follow-up suture knotting can be continued.The present invention, by designing a kind of suture needle and Song Zhen mechanism thereof that can accurately control autonomous serpentine track, greatly simplifies the complexity of tissue penetration action, thereby reduces the overall difficulty of sewing up action.
As shown in Figure 3, first preferred embodiment of the present invention is made up of syringe needle 10, needle body 20, place needle tubing 30 and Song Zhen mechanism 40.
The restoring force of elastomeric material after distortion mainly determine by two factors, and a factor is the Young's modulus of this elastomeric material, and in the certain situation of deflection, Young's modulus is larger, and deformation-recovery power is just larger; Another factor is the regime of elastic deformation of this elastomeric material, the size of the deflection that namely can reply, and in the situation that Young's modulus is certain, regime of elastic deformation is larger, and deformation-recovery power is also larger.
The Nitinol of certain proportioning, Young's modulus, in 70GPa left and right, is about stainless 1/3rd; And elastic deformation scope (elastic strain) can reach 6%, be about stainless 60 times; Within the scope of elastic deformation, Nitinol needle body can produce the restoring force several times in the rustless steel needle body of same size.
Place needle tubing 30 is rigidity, and its internal diameter is slightly larger than needle body 20 external diameters.The shape of place needle tubing 30 can be linear type or arc line type.
Referring to Fig. 5, on syringe needle 10, have pinprick, be convenient to suture and therefrom pass and be linked on syringe needle 10.Put the first edge on a knife or a pair of scissors into tip, with the tissue that punctures in one end of syringe needle 10; The other end of syringe needle 10 is blunt end, and diameter is slightly less than the internal diameter of needle body 20, can be assembled on needle body 20 or from needle body 20 and take off, to coordinate the needs of whole tissue penetration action.The external diameter at syringe needle 10 middle parts is greater than the internal diameter of needle body 20.Between the middle part of syringe needle 10 and blunt end, can be to there is a shoulder, also can adopt pyramidal structure, coordinate with the end of needle body 20, in the time that needle body 20 moves forward, can push syringe needle 10 and move forward together; In the time that needle body 20 moves backward, if the frictional force that syringe needle 10 is organized or be held when fixing will depart from needle body 20.
Below in conjunction with Fig. 4, Fig. 6 and Fig. 7, specifically narrate implementation method of the present invention.
1. as shown in Figure 4, needle body 20 is bounced back to place needle tubing 30 inside by Song Zhen mechanism 40, and syringe needle 10 is filled to needle body 20 tops by another operating theater instruments (for example needle forceps), and suture is attached on syringe needle 10.Needle outlet aligning internal organs, the tissue of place needle tubing 30 are needed to the position of sewing up.
Song Zhen mechanism 40 that needle body 20 is combined to syringe needle 10 is extrapolated together.Needle body 20, in the process outwards discharging, is independently replied original circular shape; Under the help of the blade of syringe needle 10, in tissue, pass with arc track, pass tissue from the opposite side that needs suture location.In this process, because suture is linked to syringe needle 10, suture is also taken to the opposite side that needs stitching, as shown in Figure 6.
3. another needle forceps is caught the syringe needle 10 through tissue.Song Zhen mechanism 40 bounces back to needle body 20 outlet of place needle tubing 30, and now syringe needle 10 is pulled away from needle body 20, stays and organizes opposite side, and suture is also stayed the same side of syringe needle 10, as shown in Figure 7.Now needle forceps can be firmly grasped syringe needle 10, and suture was pulled on to tissue.So far completing primary structure penetrates.
4. the top that syringe needle can be filled to needle body 20 with needle forceps for 10 times, is returned to state shown in Fig. 4, to carry out tissue penetration next time.
In Fig. 3～Fig. 7 of the present embodiment, place needle tubing 30 is straight tube-like.In other embodiments, as shown in Fig. 8～Figure 10, place needle tubing 30 ' can be also syphon shape, when the acra of needle body 20 is incorporated in the place needle tubing 30 ' of syphon shape, be subject to the constraint of place needle tubing 30 ' hollow lumen, the acra of needle body 20 will correspondingly become the bending consistent with the hollow lumen of place needle tubing 30 '.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. a controllable self-bending suture needle, for the operation of carrying out by endoscope, is characterized in that, comprises syringe needle, needle body, place needle tubing and Song Zhen mechanism; Wherein,
Described needle body is tubulose, and described needle body is through Technology for Heating Processing, and the distal end of described needle body is equiped with described syringe needle; Described needle body entirety is arranged in the needle tubing of described place;
Described place needle tubing has hollow lumen, and one end is rigid tubular end, and the other end and described Song Zhen mechanism are fixedly connected;
One end of described needle body is acra, and described acra is the first shape of the circular arc of molding in advance when unfettered; The other end of described needle body is connected with described Song Zhen mechanism, under the propelling movement of described Song Zhen mechanism, described needle body optionally moves or rotates around the axis of described place needle tubing along the axis direction of described place needle tubing, wherein, described needle body makes within the described acra of described needle body can be accommodated in the described rigid tubular end of described place needle tubing along the movement of the axis direction of described place needle tubing, or is exposed to outside the described rigid tubular end of described place needle tubing; And described needle body rotates the described acra of described needle body is exposed to required deflection angle outside the described rigid tubular end of described place needle tubing around the axis of described place needle tubing;
Wherein, within described acra is accommodated in described rigid tubular end time, described acra suffers restraints, and becomes second shape consistent with the described hollow lumen of described place needle tubing at described rigid tubular end place;
One end of described syringe needle is provided with sword limit, needs the tissue of suture site for puncturing; The diameter of the other end of described syringe needle is slightly less than the internal diameter of described needle body, can be assembled to the described acra of described needle body or take off from described needle body; Described syringe needle is made up of rustless steel, on described syringe needle, offers pinprick, so that suture therefrom passes and is linked on described syringe needle; The external diameter at the middle part of described syringe needle is greater than the internal diameter of described needle body, and, the blunt end from described middle part to described syringe needle, there is descending tapering transition structure; The described distal inner chamber of the described needle body of tubulose has the bell-mouth structure of air expanding gradually from inside to outside, matches with described tapering transition structure, and in the time that described needle body moves forward, described needle body can push described syringe needle and move forward together; In the time that described needle body moves backward, if the frictional force that described syringe needle is organized or be held fixingly, described syringe needle and described needle body depart from.
2. controllable self-bending suture needle as claimed in claim 1, is characterized in that, the described acra of at least described needle body is made up of the elastomeric material with strong restoring force, described in there is strong restoring force elastomeric material be Nitinol.
3. controllable self-bending suture needle as claimed in claim 1, is characterized in that, the described rigid tubular end of described place needle tubing is straight tube-like or bent tube form, and described second is shaped as the substantially straight or bending corresponding with described rigid tubular end.
4. controllable self-bending suture needle as claimed in claim 1, is characterized in that, the global shape of described place needle tubing is linear or shaped form.
5. controllable self-bending suture needle as claimed in claim 1, is characterized in that, described tapering transition structure and described bell-mouth structure of air are taper seat.
6. controllable self-bending suture needle as claimed in claim 1, is characterized in that, described tapering transition structure and described bell-mouth structure of air are mutual identical curved surface.
7. controllable self-bending suture needle as claimed in claim 1, is characterized in that, described endoscope is hard pipe type endoscope or hose type endoscope.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458252.5A CN102512218B (en) | 2011-12-31 | 2011-12-31 | Controllable self-bending suture needle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110458252.5A CN102512218B (en) | 2011-12-31 | 2011-12-31 | Controllable self-bending suture needle |
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| CN102512218A CN102512218A (en) | 2012-06-27 |
| CN102512218B true CN102512218B (en) | 2014-05-21 |
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| CN201110458252.5A Active CN102512218B (en) | 2011-12-31 | 2011-12-31 | Controllable self-bending suture needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103356252B (en) * | 2013-07-07 | 2018-09-18 | 湖南依微迪医疗器械有限公司 | Endoscope suture needle device |
| CN114081572B (en) * | 2022-01-20 | 2022-05-06 | 北京微刀医疗科技有限公司 | Blood vessel closing needle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219358A (en) * | 1991-08-29 | 1993-06-15 | Ethicon, Inc. | Shape memory effect surgical needles |
| US5573542A (en) * | 1994-08-17 | 1996-11-12 | Tahoe Surgical Instruments-Puerto Rico | Endoscopic suture placement tool |
| US6592559B1 (en) * | 1998-12-09 | 2003-07-15 | Cook Incorporated | Hollow, curved, superlastic medical needle |
| US7842046B1 (en) * | 2004-05-26 | 2010-11-30 | Granit Medical Innovations, Llc | Endoscopic sewing device and associated method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8500757B2 (en) * | 2009-07-28 | 2013-08-06 | Edwards Lifesciences Corporation | Surgical puncture cinch and closure system |
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2011
- 2011-12-31 CN CN201110458252.5A patent/CN102512218B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219358A (en) * | 1991-08-29 | 1993-06-15 | Ethicon, Inc. | Shape memory effect surgical needles |
| US5573542A (en) * | 1994-08-17 | 1996-11-12 | Tahoe Surgical Instruments-Puerto Rico | Endoscopic suture placement tool |
| US6592559B1 (en) * | 1998-12-09 | 2003-07-15 | Cook Incorporated | Hollow, curved, superlastic medical needle |
| US7842046B1 (en) * | 2004-05-26 | 2010-11-30 | Granit Medical Innovations, Llc | Endoscopic sewing device and associated method |
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| CN102512218A (en) | 2012-06-27 |
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Effective date of registration: 20171213 Address after: 201108 Shanghai city Minhang District Yindu road 3151 Lane 194, Room 601 Patentee after: Xu Kai Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: Shanghai Jiao Tong University |
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Address after: 100192 Tiandi Adjacent to Feng2 Building 106, No. 1 North Yongtaizhuang Road, Haidian District, Beijing Patentee after: Beijing Shurui Robot Co.,Ltd. Address before: 100192 Tiandi Adjacent to Feng2 Building 106, No. 1 North Yongtaizhuang Road, Haidian District, Beijing Patentee before: BEIJING SURGERII TECHNOLOGY Co.,Ltd. |