CN104337553A - Heart hole opener - Google Patents
Heart hole opener Download PDFInfo
- Publication number
- CN104337553A CN104337553A CN201310337322.0A CN201310337322A CN104337553A CN 104337553 A CN104337553 A CN 104337553A CN 201310337322 A CN201310337322 A CN 201310337322A CN 104337553 A CN104337553 A CN 104337553A
- Authority
- CN
- China
- Prior art keywords
- cutter head
- making drill
- knife bar
- hole making
- knife rest
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
- A61B2017/00247—Making holes in the wall of the heart, e.g. laser Myocardial revascularization
Abstract
The invention discloses a heart hole opener which comprises a knife head, a knife rod and a knife rest, wherein the knife head is fixedly connected with the knife rod, and the knife rod can be used for accurately driving the knife head to move in the extension direction of the knife rest to finish the tissue cutting operation. Therefore, the problems of falling of the knife rod from the knife head and non-ideal shape of a tissue cutting surface easily caused by vibration during operation are effectively solved, the surgical cutting precision is improved, the operating process is simplified, and a relatively ideal expected effect is obtained.
Description
Technical field
The present invention relates to operating theater instruments and therapeutic device field, particularly a kind of heart hole making drill.
Background technology
Along with the lifting of medical level, about the enforcement of operation on heart is more extensive and universal, wherein, human assistance cardiac treatment, has the blood-pumping function of accessory heart left ventricle, is the important surgery mechanical that can maintain or recover systemic circulation state.In the operation process of human assistance heart, in order to implement to install to human assistance heart, need to offer circular hole in the apex of the heart position of heart, Circularhole diameter matches with human assistance heart inlet diameter, to be arranged on human heart by human assistance heart.Existing hole making drill in implementation process, because the blade of cutter head and knife bar adopt dismountable connected modes such as screw thread, therefore in working angles due to vibrations, easily cause the loosening of cutter head and knife bar, can produce time serious and get loose.Meanwhile, due to cutting edge many employings waveform cutting edge of existing gag, the cutting face of cutting edge and cutting depth not at grade, therefore, when carrying out operation cutting operation, can produce multiple tissue cutting face.When tissue softness to be cut or out-of-flatness, can form excision only due to multiple waveform radius of edge deviation, the situation of generation minced meat, cannot obtain desirable cutting shape, the surgical effect that final impact is follow-up.
Summary of the invention
For defect of the prior art, one aspect of the present invention provides a kind of heart hole making drill, its hole making drill, and on the one hand, cutter head adopts with knife bar and is fixedly connected with form, thus prevents in operation process, because vibrations knife bar comes off from cutter head; On the other hand, the cutting edge of cutter head adopts isoplanar, smooth structure, ensure that same cutting plane and same cutting depth, thus makes cutting shape more level and smooth, regular.Thus solve in above-mentioned prior art, the problem existing for heart hole making drill.
Heart hole making drill provided in one embodiment of the invention, comprise: cutter head, knife bar and knife rest, described cutter head is fixedly connected on one end of described knife bar, the other end of described knife bar is flexibly connected with described knife rest, make knife bar drive described cutter head to move along the bearing of trend of described knife rest, form circular cut face at the contact side of described cutter head and described knife rest.
In some embodiments, described cutter head is welded in one end of described knife bar.Thus enhance the stability of hole making drill in surgical cut process.
In some embodiments, described cutter head comprises: axle center hole, and described knife bar is provided with the annular groove corresponding to this hole, is connected between described axle center hole with described annular groove for transition or matched in clearance.What further increase cutter head and knife bar coordinates area, reduces assembly difficulty, improves connection reliability.
In some embodiments, the cutting edge of described cutter head is annular, and described cutting edge inclination angle is 8 to 12 °.Therefore, while improve cutting accuracy, also improve the service life of hole making drill.
In some embodiments, also comprise: guide post, described guide post is fixedly connected on the end of the other end of described knife bar.Thus improve operation implementer cutting accuracy to tissue in operation process, and make operation more accurate.
In some embodiments, be also provided with between described guide post and described knife bar: stop screw.Thus improve the stability of operation.
In some embodiments, also comprise between described guide post and described knife rest: back-moving spring.Therefore, simplify the troublesome operation of heart hole making drill when surgical cut, improve the cutting efficiency of operation.
In some embodiments, also comprising of described knife rest: axle center hole, described axle center hole is corresponding to the external diameter of described guide post and described back-moving spring, makes described back-moving spring drive described guide post to slide axially along axle center hole, is returned to original position.Thus ensure that heart hole making drill is when carrying out surgical cut, can rest on metastable initial position, simplify the operation of operator.
In some embodiments, described knife rest also comprises with on the contact side cylindrical of described cutter head: coordinate chamfering.Therefore knife rest of being more convenient for coordinates with operation opening position.
In some embodiments, also comprise: also comprise: hand-held ring and/or holding rod, described hand-held ring is fixedly connected on the end of described guide post, and described holding rod is fixedly connected on the outside of described knife rest.Thus the cutting operation of the operation implementer that is more convenient for.
Compared with prior art, have the following advantages according to of the present invention: heart hole making drill of the present invention, cutter head and knife bar have employed fixing welding connecting mode, and therefore, when effectively prevent surgical cut vibration, cutter head is from landing knife bar.The cutting edge of cutter head have employed isoplanar, smooth structure simultaneously, ensure that same cutting planes and same cutting depth, thus makes cutting shape more level and smooth, regular.It can thus be appreciated that, heart hole making drill of the present invention reduces in human assistance cardiac procedure, vibrates the harm brought to operation utensil, ensure that the safety of operation, by obtaining desirable operative incision shape and specification, improve the quality of operation, obtaining good surgical effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's heart hole making drill in one embodiment;
Fig. 2 is the partial enlarged drawing of the present invention's tool bit part of heart hole making drill in one embodiment;
Fig. 3 is the partial enlarged drawing of the present invention at a kind of another kind of tool bit part of embodiment heart hole making drill.
Fig. 4 is the structural representation of the present invention's heart hole making drill in another embodiment.
Fig. 5 is the partial enlarged drawing of the present invention's blade holder part of heart hole making drill in another embodiment.
Fig. 6 is the outside schematic diagram of the present invention's heart hole making drill in another embodiment.
Fig. 7 be the present invention at another kind of embodiment, the structural representation of cardiac hole making drill when an operating position.
Fig. 8 be the present invention at another kind of embodiment, the structural representation of cardiac hole making drill when another operating position.
Detailed description of the invention
Below in conjunction with accompanying drawing, invention is described in further detail.
Heart hole making drill of the present invention as shown in Figure 1 structure in one embodiment, comprise: cutter head 1, knife bar 2, knife rest 3, wherein, the axis of cutter head 1 comprises axle center hole 13, the internal diameter of this axle center hole 13 is corresponding to the external diameter of knife bar 2, good gap or interference fits assembly connection can be formed, offer resection organization chamber 12, wherein cutting edge 11 annular flat sword near the side of cutting edge 11.Namely cutter head 1 passes through the cut end 21(of axle center hole 13 and knife bar 2, enters tissue end) be fixedly connected with by modes such as welding, the operating side 22 of knife bar 2, by the through hole 31 on knife rest 3, is flexibly connected with knife rest 3.Thus knife bar 2 can along bearing of trend 23 rectilinear motion of knife rest 3 with dynamic cutter head 1, when the plane of cutting edge 11 and side 32(and a contact side of knife rest 3) when overlapping, form circular cutting surfaces.Side 32 place shown in Fig. 1 comprises surplus shrinkage pool 33, thus tissue of being more convenient for cuts and comes off.
The partial enlarged drawing of tool bit part in one embodiment of the invention as shown in Figure 2.For being fixedly connected with of making that cutter head 1 and the cut end 21 of knife bar 2 can be more stable, on the anchor ring that match of knife bar 2 with cutter head 1 axle center hole 13, also offer half circle groove 24, the groove depth of its half circle groove 24 is preferably: 0.1mm, and groove width is preferably: 7mm.The diameter of its knife bar 2 can be preferably 4.8mm.Be connected for transition or matched in clearance between axle center hole 13 with half circle groove 24.Therefore more batch machining is conducive to.Bonding wire 14 is formed at cutter head 1 with on the interface of the cut end 21 of knife bar 2, ringwise.Thus increase cutter head 1 and the contact area of the cut end 21 of knife bar 2, make cutter head 1 and knife bar 2 not easily produce displacement to axial, ensure that hole making drill stability in use.
More smooth and easy during for making to be organized in cutting, the cutting edge 11 of its cutter head 1 is continuous circular shape, and cutting edge 11 inclination angle 15 can be preferably 8 to 12 °.This angle, while guarantee cutting edge 11 has certain cutting hardness, also can make to cut and organize and can slip into smoothly in resection organization chamber 12, thus while improve cutting accuracy, also improve the service life of heart hole making drill.
The partial enlarged drawing of tool bit part in another embodiment of the invention as shown in Figure 3.Being with Fig. 2 difference, in order to increase cutter head 1 and the bonding strength of the cut end 21 of knife bar 2 further, on the anchor ring that cutter head 1 axle center hole 13 matches with knife bar 2, being also provided with chamfering 241, its chamfering 241 can preferred 1*2mm or 2*3mm.Therefore, bonding wire 141 can be made to be formed as triangular cross-section, be welded to connect the two sides Welding Structure of intensity higher than bonding wire in Fig. 2 14, make bonding wire 141 width and the degree of depth obviously be greater than bonding wire 14.Meanwhile, in this configuration, reduce the surface tension of bonding wire, reduce the incidence rate of pore in welding process.Be fixedly connected with intensity because of what this enhance cutter head 1 and knife bar 2, reduce welding processing difficulty, make concordance and the yield rate raising of welding, thus more easily obtain desirable bonding wire shape.
For improving operation implementer cutting accuracy to tissue in operation process, and making operation technique more accurate, as shown in Figure 4, in another embodiment of the invention, being also provided with guide post 4 at the end of the operating side 22 of knife bar 2.One end axis of guide post 4 offers screwed hole 41, on the cylindrical end of the operating side 22 of knife bar 2, offers the external screw thread corresponding to this screwed hole 41 screw thread, make the operating side 22 of knife bar 2 form threaded engagement with guide post 4 and be connected.Therefore increase operation implementer to the gripping area of knife bar 2, thus be more conducive to operation implementer to the operation of heart hole making drill.Improve as to the one of present embodiment, for making to be threaded more fastening in present embodiment, be also provided with Step Shaft 221 in the side of the operating side 22 of knife bar 2, this Step Shaft 221 cylindrical is less than operating side 22 cylindrical, and and forming station terrace between operating side 22.Meanwhile, on the relevant position of this step surface, guide post 4 side offers stop screw hole 51, and stop screw 5 is fixed in stop screw hole 51, by step surface fixing operation end 22 from the side.Thus effectively prevent knife bar 2 relative to guide post 4 play in the axial direction, ensure that the accurate interlock of guide post 4 and knife bar 2, thus the accuracy of surgical cut is improved.
For simplifying the heart hole making drill troublesome operation when surgical cut, improving the cutting efficiency of operation, in another embodiment of heart hole making drill of the present invention, as shown in Figure 4, between the guide post 4 and knife rest 3 of operating side 22, being also equipped with back-moving spring 6.Axle center hole 34 aperture of knife rest 3 is corresponding to the outside dimension of back-moving spring 6 and guide post 4, can make back-moving spring 6 support guide bar 4 in axle center hole 34, along sliding axially of axle center hole 34.Thus ensure at knife bar 2 when there is no extruding force effect, and the minimal deformation position of guide post 4(and back-moving spring 6) cut end 21 of knife bar 2 can be driven to be returned on initial position.Simultaneously for making cutter head 1 when not using, can remain on this initial position, and ensure certain initial support power (i.e. the initial deformation power of back-moving spring 6), need back-moving spring 6 again initial position time just produce initial deformation, therefore on the relevant position of knife bar 2, also retaining boss 25 is comprised, thus ensure that heart hole making drill is when carrying out surgical cut, can rest on metastable initial position, simplify the operation of operator.
For making in surgical cut process, knife rest 3 Absorbable organic halogens be fixed on the pre-opening of tissue to be cut, as shown in Figure 5, knife rest 3 also comprises with on the contact side cylindrical of cutter head: coordinate chamfering 35.It coordinates the angle of chamfering 35 can be preferably 15 ° to 18 degree to make the fixation side of knife rest 3 and tissue to be cut be taper surface, and knife rest of being more convenient for coordinates with aperture position.
As shown in Figure 6, for ease of the operation of the implementer that performs the operation, guide post 4 and knife rest 3 are also fixed with hand-held ring 7 and/or holding rod 8.Wherein, hand-held ring 7 is fixed on the end of guide post 4.Bilateral holding rod 8 is fixedly connected with the outer round thread of knife rest 3.Make operation implementer be more convenient for controlling it when operating heart hole making drill, thus obtain better surgical cut effect.
Referring to Fig. 4, Fig. 7 and Fig. 8, the use procedure of the heart hole making drill in another embodiment above-mentioned is described:
The first step, marks a criss-cross opening at heart apex position scalpel.
Second step, the head (connecting portion of the cut end 21 of cutter head 1 and knife bar 2) of heart hole making drill is inserted in heart by cross open, as shown in Figure 4, in heart hole making drill, back-moving spring 6 is in initial compression position, makes the retaining boss 25 of knife bar 2 be close to the side of through hole 31 in knife rest 3.Afterwards knife rest 3 is pressed into ventricle suture ring, by knife rest 3 positioning stablity.
3rd step, promote hand-held ring 7, compression stress is applied to back-moving spring 6 by guide post 4, as shown in Figure 7, back-moving spring 6 is out of shape (shortening), and the head (connecting portion of the cut end 21 of cutter head 1 and knife bar 2) of heart hole making drill stretches out from the surplus shrinkage pool 33 of knife rest 3, enter heart tissue inside, unclamp hand-held ring 7(namely to stop applying compression stress to back-moving spring 6), cut end 21 resilience under the effect of back-moving spring 6 of knife bar 2, is clipped in cutting edge 11 and knife rest 3(32 side by cardiac muscle 9) between.
4th step, rotating hand ring 7, drives guide post 4 to rotate, makes the cutting edge 11 of cutter head 1 complete annulus cutting action.As shown in Figure 8, the cardiac muscular tissue 91 of cutting is kept in the resection organization chamber 12 of cutter head 1.The head of heart hole making drill is extracted in heart tissue, withdraws from knife rest, complete cutting.
It can thus be appreciated that heart hole making drill of the present invention, because cutter head and knife bar have employed fixing welding connecting mode, therefore, when effectively prevent surgical cut vibration, cutter head is from landing knife bar.The cutting edge of cutter head have employed isoplanar, smooth structure simultaneously, ensure that same cutting planes and same cutting depth, thus makes cutting shape more level and smooth, regular.It can thus be appreciated that, heart hole making drill of the present invention reduces in human assistance cardiac procedure, vibrates the harm brought to operation utensil, ensure that the safety of operation, by obtaining desirable operative incision shape and specification, improve the quality of operation, obtaining good surgical effect.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. heart hole making drill, comprise: cutter head (1), knife bar (2) and knife rest (3), it is characterized in that, described cutter head (1) is fixedly connected on one end of described knife bar (2), the other end of described knife bar (2) is flexibly connected with described knife rest (3), make knife bar (2) drive described cutter head (1) to move along the bearing of trend of described knife rest (3), form circular cut face at described cutter head (1) and the contact side of described knife rest (3).
2. heart hole making drill according to claim 1, is characterized in that, described cutter head (1) is welded in one end of described knife bar (2).
3. heart hole making drill according to claim 2, is characterized in that, described cutter head (1) comprising: axle center hole, and described knife bar (2) is provided with the annular groove corresponding to this hole, is connected between described axle center hole with described annular groove for transition or matched in clearance.
4. heart hole making drill according to claim 1 and 2, is characterized in that, the cutting edge of described cutter head (1) is annular, and described cutting edge inclination angle is 8 to 12 °.
5. heart hole making drill according to claim 2, is characterized in that, also comprise: guide post (4), and described guide post (4) is fixedly connected on the end of the other end of described knife bar (2).
6. heart hole making drill according to claim 5, is characterized in that, is also provided with between described guide post (4) and described knife bar (2): stop screw (5).
7. the heart hole making drill according to claim 5 or 6, is characterized in that, also comprises between described guide post (4) and described knife rest (3): back-moving spring (6).
8. heart hole making drill according to claim 7, it is characterized in that, also comprising of described knife rest (3): axle center hole, described axle center hole is corresponding to the external diameter of described guide post (4) and described back-moving spring (6), make described back-moving spring (6) drive described guide post (4) to slide axially along axle center hole, be returned to original position.
9. heart hole making drill according to claim 2, is characterized in that, described knife rest (3) also comprises with on the contact side cylindrical of described cutter head (1): coordinate chamfering.
10. heart hole making drill according to claim 5, it is characterized in that, also comprise: hand-held ring (7) and/or holding rod (8), described hand-held ring (7) is fixedly connected on the end of described guide post (4), and described holding rod (8) is fixedly connected on the outside of described knife rest (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337322.0A CN104337553A (en) | 2013-08-05 | 2013-08-05 | Heart hole opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337322.0A CN104337553A (en) | 2013-08-05 | 2013-08-05 | Heart hole opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104337553A true CN104337553A (en) | 2015-02-11 |
Family
ID=52494573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310337322.0A Pending CN104337553A (en) | 2013-08-05 | 2013-08-05 | Heart hole opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104337553A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997552A (en) * | 2015-04-27 | 2015-10-28 | 苏州同心医疗器械有限公司 | Surgical trepanning cutter and use method thereof |
| CN108186082A (en) * | 2018-02-02 | 2018-06-22 | 郭振华 | A kind of dazzling tool of openheart surgery |
| CN116898536A (en) * | 2023-09-12 | 2023-10-20 | 苏州同心医疗科技股份有限公司 | Cardiac hole digger |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224999A (en) * | 1996-05-08 | 1999-08-04 | 卡拉格股份公司 | A device for plugging an opening in a wall of a hollow or tubular organ |
| WO1999059482A1 (en) * | 1998-05-15 | 1999-11-25 | Sulzer Carbomedics Inc. | Apparatus and method for cutting a heart valve annulus |
| US6022367A (en) * | 1997-06-18 | 2000-02-08 | United States Surgical | Surgical apparatus for forming a hole in a blood vessel |
| CN1599579A (en) * | 2001-10-05 | 2005-03-23 | 金齐姆公司 | Surgical punch device |
| US20070167968A1 (en) * | 2006-01-13 | 2007-07-19 | Rajesh Pandey | Surgical tool for coring precise holes and providing for retrieval of tissue |
| US20070185513A1 (en) * | 2001-06-29 | 2007-08-09 | Woolfson Steven B | Method and apparatus for resecting and replacing an aortic valve |
| CN101365389A (en) * | 2005-10-14 | 2009-02-11 | 科力士公司 | Apparatus and method for forming a hole in a hollow organ |
| CN203379152U (en) * | 2013-08-05 | 2014-01-08 | 北京精密机电控制设备研究所 | Heart hole former |
-
2013
- 2013-08-05 CN CN201310337322.0A patent/CN104337553A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224999A (en) * | 1996-05-08 | 1999-08-04 | 卡拉格股份公司 | A device for plugging an opening in a wall of a hollow or tubular organ |
| US6022367A (en) * | 1997-06-18 | 2000-02-08 | United States Surgical | Surgical apparatus for forming a hole in a blood vessel |
| WO1999059482A1 (en) * | 1998-05-15 | 1999-11-25 | Sulzer Carbomedics Inc. | Apparatus and method for cutting a heart valve annulus |
| US20070185513A1 (en) * | 2001-06-29 | 2007-08-09 | Woolfson Steven B | Method and apparatus for resecting and replacing an aortic valve |
| CN1599579A (en) * | 2001-10-05 | 2005-03-23 | 金齐姆公司 | Surgical punch device |
| CN101365389A (en) * | 2005-10-14 | 2009-02-11 | 科力士公司 | Apparatus and method for forming a hole in a hollow organ |
| US20070167968A1 (en) * | 2006-01-13 | 2007-07-19 | Rajesh Pandey | Surgical tool for coring precise holes and providing for retrieval of tissue |
| CN203379152U (en) * | 2013-08-05 | 2014-01-08 | 北京精密机电控制设备研究所 | Heart hole former |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997552A (en) * | 2015-04-27 | 2015-10-28 | 苏州同心医疗器械有限公司 | Surgical trepanning cutter and use method thereof |
| CN104997552B (en) * | 2015-04-27 | 2019-01-04 | 苏州同心医疗器械有限公司 | A kind of surgery boring cutter and its application method |
| CN108186082A (en) * | 2018-02-02 | 2018-06-22 | 郭振华 | A kind of dazzling tool of openheart surgery |
| CN116898536A (en) * | 2023-09-12 | 2023-10-20 | 苏州同心医疗科技股份有限公司 | Cardiac hole digger |
| CN116898536B (en) * | 2023-09-12 | 2023-12-15 | 苏州同心医疗科技股份有限公司 | Cardiac hole digger |
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Application publication date: 20150211 |
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