CN204839667U - Split type surgery trompil sword - Google Patents
Split type surgery trompil sword Download PDFInfo
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- CN204839667U CN204839667U CN201520506006.6U CN201520506006U CN204839667U CN 204839667 U CN204839667 U CN 204839667U CN 201520506006 U CN201520506006 U CN 201520506006U CN 204839667 U CN204839667 U CN 204839667U
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- split type
- tissue
- grasping mechanism
- cylinder
- type surgery
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Abstract
The utility model discloses a split type surgery trompil sword for cut the trompil and remove trompil department by the cutting tissue on biological tissue, including drum sword and grasping mechanism, the drum sword is the tubulose and includes a distal end and a near -end that supplies the handheld operation of user that has the cylinder cutting edge, the inside accommodating space that forms of drum of drum sword, accommodating space's distal end is for supplying by the opening of cutting tissue entering, the grasping mechanism is at least including a body of rod and pole head, the pole head be one can stretch into to by cutting tissue inside and with produced the extrusion relation of connection by the cutting tissue, and then fixed grabbing is held by the entity of cutting tissue, when split type surgery trompil sword is in initial condition, the pole head accept completely in accommodating space. The beneficial effect of the utility model: organizing of downcutting can not dropped, and can whole take out, tissue cutting profile is slick and sly, and the cylindricity of trompil is good, the operation is easily withdrawed from after accomplishing, and the operation time spent is short.
Description
Technical field
This utility model relates to field of surgical, the boring cutter of particularly a kind of perforate in the biological tissues such as cardiac muscle.
Background technology
Along with the lifting of medical level, operating theater instruments is more specialized and become more meticulous, and has a class operation to need perforate on the internal organs such as human heart, stomach, bladder.Such as, Patients with Cardiac Failure can adopt ventricular assist device (blood pump) to treat, in the implant surgery process of ventricular assist device, need to offer circular hole in the apex of the heart position of heart, Circularhole diameter matches with ventricular assist device inlet diameter, to be arranged on human heart by ventricular assist device, and the quality of this myocardium perforate quality is the key of implant surgery success or failure.
In the past, for biological tissue's perforate, be generally by doctor first by the biological tissue that medical linear system is firmly to be excised, then undertaken sliding cutting by circular knife.This operation method operation inconvenience, the operation that medical linear system lives biological tissue is comparatively loaded down with trivial details, requires higher, and easily occur malpractice to the operant level of doctor; If anchor line (string) loosely, the tissue scaled off easily is caused to drop.
Chinese patent CN201420479715.5 discloses a kind of apparatus for myocardium perforate, its structure is for comprising hands handle, localizer and boring cutter, boring cutter lower end is a cylindrical structure, cylinder lower end is blade, localizer lower end has a cutter anvil, cutter anvil is arranged at the outside of cylinder blade, its using method first cuts a cross recess with scalpel at heart tapping for during operation, then localizer to be inserted in heart and to withstand heart, and then cut by cylinder cutter, finally solid tool is extracted, its deficiency is: (1) localizer conehead inserts in the process of ventricle by cross recess, cardiac muscle need be squeezed, therefore very large power is needed to insert, heart chamber is easily caused to quiver, (2) localizer conehead diameter is greater than cylinder cutter diameter, causes unnecessary damage to cardiac muscle, and easily makes cut hole be out of shape, (4) conehead needs after entering heart to keep handle motionless, then carries out the cutting of cylinder cutter, and operation easier is high, (5) conehead easily produces and departs from heart, causes cylinder cutter to cut skew.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provides a kind of structure simple, easy to operate split type surgery boring cutter.
In order to achieve the above object, the technical scheme that this utility model adopts is:
Split type surgery boring cutter, for cutting perforate and remove the cut tissue of tapping in biological tissue, especially, at least comprises one to be cut tissue for grasping tapping grasping mechanism for the cylinder cutter and cutting perforate in biological tissue;
In a tubular form and comprise one and have the far-end and of cylindrical shape blade for the near-end of user hand-held, the cylinder interior of described cylinder cutter forms a receiving space to described cylinder cutter, and the far-end of described receiving space is the opening entered for described cut tissue;
Described grasping mechanism at least comprises a body of rod and bar head, and described bar head is one can stretch to cut organization internal and produce squeeze flow relation with described cut tissue, and then fixedly grasps the entity of described cut tissue;
When described split type surgery boring cutter is in original state, described bar head is contained in described receiving space completely.
Preferably, the bar head of described grasping mechanism be have spatially spiral line structure in thread entity, its far-end is sharp-pointed, when described thread entity rotates around the central shaft of its helix and is subject to axial thrust effect, described thread entity rotates to pierce tissue and attack in the tissue and gets out the passage consistent with its shape.
Preferably, the bar head of described grasping mechanism is the cylinder that far-end is sharp-pointed, and described cylinder is provided with the excrescence of the one or more helically line structure spiraled thereon, described excrescence has sharp free-end, when described cylinder rotates around its axis and is subject to axial thrust effect, described cylinder and excrescence rotate to pierce tissue and attack in the tissue and get out the passage consistent with described cylinder and excrescence shape.
Preferably, the pitch of described helix is impartial.
Preferably, the far-end pitch of described helix is greater than near-end pitch.
Preferably, the bar head of described grasping mechanism is the column entity that far-end is sharp-pointed, and described column entity is provided with one or more agnail body; When described grasping mechanism is subject to thrust, described column entity punctures along the axis of cylinder cutter and clamp-ons cut tissue, and described agnail body is clamp-oned and fixedly cuts and organizes.
Preferably, the bar head of described grasping mechanism is the rib sword cone that far-end is sharp-pointed, described rib sword cone is made up of plural rib sword, the near-end of described rib sword has for supporting the rib sword end face fixedly cut and organized, when described grasping mechanism is subject to thrust, described rib sword cone punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the rib sword end face of described rib sword cone supports fixing cutting and organizes.
Preferably, the proximal lateral that described bar head is positioned at rib sword cone has rib sword cone or agnail body.
Preferably, the bar head of described grasping mechanism is the cone angle body that far-end is sharp-pointed, described cone angle body has plural number cone wall, the near-end of described cone angle body has for supporting the conical surface fixedly cut and organized, when described grasping mechanism is subject to thrust, described cone angle body punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the conical surface of described cone angle body supports fixing cutting and organizes.
Preferably, the proximal lateral that described bar head is positioned at cone angle body has cone angle body or agnail body.
Preferably, described cylinder cutter and the described body of rod coaxial.
Preferably, described cylinder cutter near-end has the uncovered of the body of rod activity cross-under of the described grasping mechanism of confession.
Preferably, the near-end of the described body of rod has a press section, and the far-end of the body of rod has a limiting section.
Preferably, described body of rod overcoat has spring, and described spring retainer is between the end face of the near-end of the press section of the described body of rod and cylinder cutter.
Preferably, the described body of rod and described cylinder cutter uncovered between be threaded connection.
The beneficial effects of the utility model are embodied in:
(1) tissue cut is grasped by grasping mechanism, can not drop, and can take out fast;
(2) myocardium cutting profile is round and smooth;
(3) performed the operation and easily to have exited afterwards;
(4) operation technique is convenient, and the used time is short;
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model split type surgery boring cutter first embodiment;
Fig. 2 is the structural representation of this utility model split type surgery boring cutter second embodiment;
Fig. 3 is this utility model body of rod and the uncovered structural representation be threaded;
Fig. 4 is the axonometric chart of the grasping mechanism of this utility model split type surgery boring cutter the 3rd embodiment;
Fig. 5 is the axonometric chart of the grasping mechanism of this utility model split type surgery boring cutter the 4th embodiment;
Fig. 6 is the structural representation of this utility model split type surgery boring cutter the 4th embodiment;
Fig. 7 is another structural representation of this utility model split type surgery boring cutter the 4th embodiment;
Fig. 8 is the axonometric chart of the optimization grasping mechanism of this utility model split type surgery boring cutter the 4th embodiment;
Fig. 9 is the axonometric chart of the grasping mechanism of this utility model split type surgery boring cutter the 5th embodiment;
Figure 10 is the axonometric chart of the optimization grasping mechanism of this utility model split type surgery boring cutter the 5th embodiment.
Detailed description of the invention
Below with reference to detailed description of the invention shown in the drawings, this utility model is described in detail.But these embodiments are not limited to this utility model, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection domain of the present utility model.
Often need to punch to soft tissue (comprising muscular tissue) in surgical operation, punch on cardiac muscle as needed when ventricular assist device is implanted, the quality of its drilling quality is the key of implant surgery success or failure.So-called soft tissue comprises muscular tissue, skin, subcutaneous tissue etc., wherein muscular tissue comprises again cardiac muscle, smooth muscle, skeletal muscle etc., these soft tissues have a common feature namely easily to deform under external force, therefore these soft tissues are carried out punch appropriate to the occasion first will need punching soft tissue fix, then carry out punching action, the hole site that such guarantee is got is accurate and round and smooth.
This utility model based on the above-mentioned characteristic of biological tissue, purpose of design be by the cutting of tissue with grasp immobile phase and be combined.Described in literary composition specific as follows.
With reference to shown in accompanying drawing 1, the scheme that the first embodiment of the present utility model adopts is:
Split type surgery boring cutter 10, for cutting perforate and remove the cut tissue of tapping in biological tissue, at least comprise one to be cut tissue for grasping tapping grasping mechanism 2 for the cylinder cutter 1 and cutting perforate in biological tissue, cylinder cutter 1 in a tubular form and comprise one and have the far-end 11 and of cylindrical shape blade 13 for the near-end 12 of user hand-held, the cylinder interior of cylinder cutter 1 forms a receiving space 16, and the far-end of receiving space 16 is organize for cut the opening 17 entered; Grasping mechanism 2 at least comprises a body of rod 21 and bar head 22, and bar head 22 is one can stretch to cut organization internal and produce squeeze flow relation with cut tissue, and then fixedly grasps the entity of cut tissue; When split type surgery boring cutter is in original state, bar head is contained in described receiving space completely.
The bar head 22 of grasping mechanism 2 is thread entity for what have spatially spiral line structure, its far-end is sharp-pointed, when thread entity rotates around the central shaft of its helix and is subject to axial thrust effect, thread entity rotates to pierce tissue and attack in the tissue and gets out the passage consistent with its shape, the thread entity of spatially spiral line structure can be attacked in the tissue with comparalive ease and be got out the passage consistent with its helix, and owing to organizing intrinsic elasticity, tissue around the thread entity of spatially spiral line structure can choke entity tightly, if at this moment vertically or move radially grasping mechanism, then will organizing around it be driven to move together, therefore thread entity the grasping and fixation tissue of spatially spiral line structure is formed.Grasp effect for increasing, the thread entity of spatially spiral line structure can set up the structures such as agnail.
Based on the using method of the split type surgery boring cutter of the first embodiment, comprise the following steps:
S1 positioning step, split type surgery boring cutter location is positioned over operating area, and now its grasping mechanism is in its receiving space;
S2 grasping mechanism spin step, grip stationary cylinder cutter, rotate and distally advance grasping mechanism, make it pierce organization internal and produce squeeze flow with surrounding tissue, and then fixedly grasp this cut tissue, describedly fixedly grasp acting body now when described grasping mechanism is proximally pulled back along the axis of described cylinder cutter, by the tissue motion together driven around described grasping mechanism;
S3 cylinder cutter spin step, grips fixing grasping mechanism, and rotate and distally advance cylinder cutter, the cut tissue in operating area is cut open by the blade of cylinder cutter;
S4 takes out step, and when the blade of described cylinder cutter will be cut after tissue all cuts off, cut tissue to be fixed on grasping mechanism and to be contained in the receiving space of described cylinder cutter completely; Now extracted from tissue by described split type surgery boring cutter, cut tissue is intactly taken out together with boring cutter, and perforate completes.
With reference to shown in accompanying drawing 2, the scheme that the second embodiment of the present utility model adopts is:
The bar head of grasping mechanism 2 is the cylinder 4 that far-end 41 is sharp-pointed, and cylinder 4 is provided with one or more excrescence 42 with the helically line structure of tapping screw thread feature spiraled thereon, excrescence 42 has sharp free-end, when cylinder 4 rotates around its axis and is subject to axial thrust effect, cylinder and excrescence rotate to pierce tissue and attack in the tissue and get out the passage consistent with cylinder and excrescence shape.
Using method and first embodiment of this embodiment are similar, therefore do not repeat them here.
First embodiment and the second embodiment all can be optimized further, and the pitch of helix is impartial, are convenient to manufacture.Further, the far-end pitch of helix is greater than near-end pitch, makes to pierce in the process of tissue in its rotation, constantly drags proximally by remote organization, produces larger squeeze flow and grasp fixation to tissue.
In addition, the first embodiment and the second embodiment also can be optimized further again, as shown in Figure 3, the body of rod and described cylinder cutter uncovered between be threaded connection.The near-end of the body of rod has a press section 23, and the far-end of the body of rod has a limiting section 24.
With reference to shown in accompanying drawing 4, the scheme that the 3rd embodiment of the present utility model adopts is:
The bar head 22 of grasping mechanism is the column entity 50 that far-end 72 is sharp-pointed, and sharp end 71 for penetrating tissue, and column entity 50 is provided with one or more agnail body 7, and agnail body has thorn point 73; When grasping mechanism is subject to thrust, column entity punctures along the axis of cylinder cutter and clamp-ons cut tissue, and described agnail body is clamp-oned and fixedly cuts and organizes.
Based on the using method of the split type surgery boring cutter of the 3rd embodiment, comprise the following steps:
S1 positioning step, split type surgery boring cutter location is positioned over operating area, and now its grasping mechanism is in its receiving space;
S2 grasping mechanism inserting step, grip stationary cylinder cutter, distally grasping mechanism is advanced by near-end, its axis along cylinder cutter is punctured and clamp-ons organization internal and produce squeeze flow with surrounding tissue, and then fixedly grasp this cut tissue, describedly fixedly grasp acting body now when described grasping mechanism is proximally pulled back along the axis of described cylinder cutter, by the tissue motion together driven around described grasping mechanism;
S3 cylinder cutter spin step, grips fixing grasping mechanism, and rotate and distally advance cylinder cutter, the cut tissue in operating area is cut open by the blade of cylinder cutter;
S4 takes out step, and when the blade of described cylinder cutter will be cut after tissue all cuts off, cut tissue to be fixed on grasping mechanism and to be contained in the receiving space of described cylinder cutter completely; Now extracted from tissue by described split type surgery boring cutter, cut tissue is intactly taken out together with boring cutter, and perforate completes.
Shown in accompanying drawing 5 to Fig. 8, the scheme that the 4th embodiment of the present utility model adopts is:
The bar head 22 of grasping mechanism 2 is the rib sword cone 5 that far-end 51 is sharp-pointed, rib sword cone 5 is made up of plural rib sword 52, the near-end of rib sword 52 has for supporting the rib sword end face 53 fixedly cut and organized, when grasping mechanism 2 is subject to thrust, rib sword cone punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the rib sword end face of described rib sword cone supports fixing cutting and organizes.
Also can optimize further, as shown in Figure 8, the proximal lateral that bar head is positioned at rib sword cone has rib sword cone or agnail body.
Using method and the 3rd embodiment of this embodiment are similar, therefore do not repeat them here.
Shown in accompanying drawing 9 and accompanying drawing 10, the scheme that the 5th embodiment of the present utility model adopts is:
The bar head of grasping mechanism is the cone angle body 6 that far-end 61 is sharp-pointed, cone angle body 6 has plural number cone wall 62, the near-end of cone angle body has for supporting the conical surface 66 fixedly cut and organized, when grasping mechanism is subject to thrust, cone angle body punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the conical surface of described cone angle body supports fixing cutting and organizes.
Also can optimize further, as shown in Figure 10, the proximal lateral that bar head is positioned at cone angle body has cone angle body or agnail body.
Using method and the 3rd embodiment of this embodiment are similar, therefore do not repeat them here.
Above-mentioned all embodiments all can do further optimization, cylinder cutter and the body of rod coaxial.As shown in Figure 2, cylinder cutter near-end has uncovered 14 of the body of rod activity cross-under for described grasping mechanism.As shown in Figure 3 and Figure 7, the near-end of the body of rod has a press section 23, and the far-end of the body of rod has a limiting section 24.As shown in Figure 7, body of rod overcoat has spring 25, and described spring 25 is limited between the end face of the press section 23 of the described body of rod and the near-end of cylinder cutter.
Far-end in this utility model and near-end define according to the distance of operation, and one end nearer with operator is in use near-end, and one end far away is far-end.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from this utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.
Claims (15)
1. split type surgery boring cutter, for cutting perforate and remove the cut tissue of tapping in biological tissue, is characterized in that: at least comprise one to be cut tissue for grasping tapping grasping mechanism for the cylinder cutter and cutting perforate in biological tissue,
In a tubular form and comprise one and have the far-end and of cylindrical shape blade for the near-end of user hand-held, the cylinder interior of described cylinder cutter forms a receiving space to described cylinder cutter, and the far-end of described receiving space is the opening entered for described cut tissue;
Described grasping mechanism at least comprises a body of rod and bar head, and described bar head is one can stretch to cut organization internal and produce squeeze flow relation with described cut tissue, and then fixedly grasps the entity of described cut tissue;
When described split type surgery boring cutter is in original state, described bar head is contained in described receiving space completely.
2. split type surgery boring cutter according to claim 1, it is characterized in that: the bar head of described grasping mechanism be have spatially spiral line structure in thread entity, its far-end is sharp-pointed, when described thread entity rotates around the central shaft of its helix and is subject to axial thrust effect, described thread entity rotates to pierce tissue and attack in the tissue and gets out the passage consistent with its shape.
3. split type surgery boring cutter according to claim 1, it is characterized in that: the bar head of described grasping mechanism is the cylinder that far-end is sharp-pointed, and described cylinder is provided with the excrescence of the one or more helically line structure spiraled thereon, described excrescence has sharp free-end, when described cylinder rotates around its axis and is subject to axial thrust effect, described cylinder and excrescence rotate to pierce tissue and attack in the tissue and get out the passage consistent with described cylinder and excrescence shape.
4. the split type surgery boring cutter according to Claims 2 or 3, is characterized in that: the pitch of described helix is impartial.
5. the split type surgery boring cutter according to Claims 2 or 3, is characterized in that: the far-end pitch of described helix is greater than near-end pitch.
6. split type surgery boring cutter according to claim 1, is characterized in that: the bar head of described grasping mechanism is the column entity that far-end is sharp-pointed, and described column entity is provided with one or more agnail body; When described grasping mechanism is subject to thrust, described column entity punctures along the axis of cylinder cutter and clamp-ons cut tissue, and described agnail body is clamp-oned and fixedly cuts and organizes.
7. split type surgery boring cutter according to claim 1, it is characterized in that: the bar head of described grasping mechanism is the rib sword cone that far-end is sharp-pointed, described rib sword cone is made up of plural rib sword, the near-end of described rib sword has for supporting the rib sword end face fixedly cut and organized, when described grasping mechanism is subject to thrust, described rib sword cone punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the rib sword end face of described rib sword cone supports fixing cutting and organizes.
8. split type surgery boring cutter according to claim 7, is characterized in that: the proximal lateral that described bar head is positioned at rib sword cone has rib sword cone or agnail body.
9. split type surgery boring cutter according to claim 1, it is characterized in that: the bar head of described grasping mechanism is the cone angle body that far-end is sharp-pointed, described cone angle body has plural number cone wall, the near-end of described cone angle body has for supporting the conical surface fixedly cut and organized, when described grasping mechanism is subject to thrust, described cone angle body punctures along the axis of cylinder cutter and clamp-ons cut tissue, and the conical surface of described cone angle body supports fixing cutting and organizes.
10. split type surgery boring cutter according to claim 9, is characterized in that: the proximal lateral that described bar head is positioned at cone angle body has cone angle body or agnail body.
11., according to described split type surgery boring cutter arbitrary in claim 1 to 10, is characterized in that: described cylinder cutter and the described body of rod coaxial.
12., according to described split type surgery boring cutter arbitrary in claim 1 to 10, is characterized in that: described cylinder cutter near-end has the uncovered of the body of rod activity cross-under of the described grasping mechanism of confession.
13. according to described split type surgery boring cutter arbitrary in claim 1 to 10, and it is characterized in that: the near-end of the described body of rod has a press section, the far-end of the body of rod has a limiting section.
14. split type surgery boring cutters according to claim 13, is characterized in that: described body of rod overcoat has spring, and described spring retainer is between the end face of the near-end of the press section of the described body of rod and cylinder cutter.
15. split type surgery boring cutters according to claim 12, is characterized in that: the described body of rod and described cylinder cutter uncovered between be threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506006.6U CN204839667U (en) | 2015-07-14 | 2015-07-14 | Split type surgery trompil sword |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506006.6U CN204839667U (en) | 2015-07-14 | 2015-07-14 | Split type surgery trompil sword |
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| Publication Number | Publication Date |
|---|---|
| CN204839667U true CN204839667U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520506006.6U Expired - Fee Related CN204839667U (en) | 2015-07-14 | 2015-07-14 | Split type surgery trompil sword |
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| Country | Link |
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| CN (1) | CN204839667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997553A (en) * | 2015-04-27 | 2015-10-28 | 苏州同心医疗器械有限公司 | Split type surgical trepanning knife and use method thereof |
-
2015
- 2015-07-14 CN CN201520506006.6U patent/CN204839667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997553A (en) * | 2015-04-27 | 2015-10-28 | 苏州同心医疗器械有限公司 | Split type surgical trepanning knife and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20200714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |