CN110742659A - Incision-free tissue grasping device for endoscope - Google Patents
Incision-free tissue grasping device for endoscope Download PDFInfo
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- CN110742659A CN110742659A CN201911069161.5A CN201911069161A CN110742659A CN 110742659 A CN110742659 A CN 110742659A CN 201911069161 A CN201911069161 A CN 201911069161A CN 110742659 A CN110742659 A CN 110742659A
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- grasping
- incision
- endoscope
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
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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
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
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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
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
Abstract
The invention discloses an incision-free tissue grasping device for an endoscope, which comprises: the endoscope releaser is provided with a clamping rod and a pair of clamping forceps heads which are arranged at the front end of the clamping rod and can be opened or closed; the gripper is provided with a pair of gripping handles which are hinged with each other and a pair of gripping tongs correspondingly connected with the front ends of the gripping handles; one end of the traction wire is connected with the pair of the grabbing handles or one grabbing handle; the tail end of the puncture needle is provided with a needle hole used for being connected with the other end of the traction wire; the pair of grasping handles are clamped by the pair of clamping forceps heads, and the pair of grasping forceps are driven by the pair of grasping handles to open to contain the target tissue and close to grasp the target tissue; wherein, the puncture needle drives the traction wire to pull the gripper after gripping the target tissue so as to expose the operation field. The grasping device can be applied to tissue traction in endoscopic surgery, is simple and easy to operate, does not occupy surgical incisions, reduces mutual interference among instruments, and has good surgical visual field.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an incision-free tissue grasping device for an endoscope.
Background
With the improvement of surgical techniques and the increase of health consciousness of people. More and more surgical methods can be completed under an endoscope, surgical incisions of the endoscope are smaller and less, single-hole surgery is increased and becomes a mainstream in recent years, however, under the endoscopic surgery, especially under the single-hole surgery, a plurality of surgical instruments are difficult to enter and exit from one surgical incision, mutual interference among the instruments is inevitable, the drawing angle is too concentrated, angular drawing and target position exposure are not realized, the smoothness and the safety of the surgery are greatly influenced, the general method is to increase the length of the endoscopic incision or add an additional incision, the trauma of the surgery to a patient is increased, if the surgery is reluctant, the surgery time is increased, and the prolongation of the surgery time is also one of the increased trauma to the patient. And the single-hole endoscope or the small-hole endoscope operation has high requirements on operators and long learning curve, is not beneficial to the culture of young doctors, and aggravates the conditions of difficult and expensive patients to see.
Disclosure of Invention
The invention aims to solve the problems and provides an incision-free tissue grasping device for an endoscope, which can be applied to tissue traction in endoscopic surgery, is simple and easy to operate, does not occupy surgical incisions, reduces mutual interference among instruments and has a good surgical field.
To achieve the above object of the present invention, the present invention provides an incision-free tissue grasping device for an endoscope, comprising: the endoscope releaser is provided with a clamping rod and a pair of clamping forceps heads which are arranged at the front end of the clamping rod and can be opened or closed; the gripper is provided with a pair of gripping handles which are hinged with each other and a pair of gripping tongs correspondingly connected with the front ends of the gripping handles; one end of the traction wire is connected with the pair of the grabbing handles or one grabbing handle; the tail end of the puncture needle is provided with a needle hole used for being connected with the other end of the traction wire; the pair of grasping handles are grasped by the pair of grasping forceps heads, and the pair of grasping forceps are driven by the pair of grasping handles to open to contain the target tissue and close to grasp the target tissue; wherein, the puncture needle drives the traction wire to pull the gripper after gripping the target tissue so as to expose the operation field.
Further, the quick positioning structure is used for enabling a pair of clamping forceps heads of the endoscope releaser to be quickly aligned and clamping a pair of grabbing handles of the grabber.
Preferably, the quick positioning structure comprises: a pair of bosses provided on opposite inner side walls of the pair of gripping bits; a pair of grooves or a pair of through holes provided on the pair of grip handles; wherein the pair of bosses are insertable into the pair of grooves or the pair of through holes.
Or, the quick positioning structure comprises: a pair of grooves provided on opposite inner side walls of the pair of gripping bits; the pair of bosses are arranged on the outer side walls of the pair of grabbing handles which are opposite to each other; wherein the pair of bosses are insertable within the pair of grooves.
Preferably, the boss is a boss with a cylindrical or star-shaped cross section, and the groove is a groove with a cylindrical or star-shaped cross section.
Wherein, the opposite inner side walls of the pair of grasping forceps of the grasping device are provided with a stress structure which is convenient for the pair of grasping forceps to grasp the target tissue.
Preferably, the force application structure comprises: a recessed or protruding formation provided on an inner side wall of a first of the pair of graspers; a male or female formation provided on an inner side wall of a second of the pair of graspers; the concave structure is matched with the convex structure so as to increase the force of the pair of graspers for grasping the target tissue and ensure that the target tissue is uniformly stressed and is prevented from being damaged when being grasped.
The convex structure comprises convex points or tooth-shaped bulges or wave-shaped bulges, and the concave structure comprises concave pits or tooth-shaped grooves or wave-shaped grooves matched with the convex points or the tooth-shaped bulges or the wave-shaped bulges.
Preferably, a fixing hole is formed at the rear end of the pair of grip handles or the one grip handle, and one end of the traction wire is directly or indirectly fixed to the fixing hole.
Preferably, the cross-section of the needle tip is star-shaped to increase the penetration capability of the needle tip and reduce trauma to the target tissue.
Compared with the prior art, the incision-free tissue gripping device for the endoscope has the following advantages:
the incision-free tissue gripping device for the endoscope can be applied to tissue traction in endoscopic surgery, the gripping device is dragged outside the body cavity of a patient far away from an operation incision through the traction wire, the operation visual field is fully exposed, the operation of a doctor is facilitated, the incision-free tissue gripping device is simple and easy to operate, the operation incision is not occupied, and the mutual interference among instruments is reduced.
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of an incision-free tissue grasping device for an endoscope according to the present invention (a pair of graspers are in a closed state);
FIG. 2 is a schematic structural view of an incision-free tissue grasping device for an endoscope according to the present invention (a pair of graspers are in an open state);
FIG. 3 is a schematic view of the configuration of the endoscopic releaser of the present invention;
FIG. 4 is a schematic view of the present invention with the head of the pliers mated to the grasper;
FIG. 5 is a schematic view of the construction of the gripper of the present invention;
FIG. 6 is a schematic view of the configuration of the grasper of the present invention with V-shaped grooves and bosses;
FIG. 7 is a schematic view of a configuration of a grasper of the present invention having a tooth-like recess formed therein;
FIG. 8 is a schematic view of the hinged arrangement of a pair of grip handles of the hair grip;
FIG. 9 is a schematic view of the assembled configuration of the grasper of the present invention with a pull wire and a puncture needle;
FIG. 10 is a front elevational view of the needle portion of the needle of the present invention;
FIG. 11 is a left side elevational view of the needle of FIG. 10;
FIG. 12 is a perspective view of the needle portion of the needle of the present invention;
fig. 13 is a left side view of the needle of fig. 12.
Detailed Description
As shown in fig. 1 and fig. 2, which are schematic structural views of a pair of graspers of an endoscopic incision-free tissue grasping device according to an embodiment of the present invention in two states, i.e., a closed state and an open state, respectively, it can be seen from fig. 1 and fig. 2 that the endoscopic incision-free tissue grasping device according to the present invention includes: the endoscope releaser 1 is provided with a clamping rod 13 and a pair of clamping forceps heads 14 which are arranged at the front end of the clamping rod 13 and can be opened or closed; a gripper 2 having a pair of grip handles 21 hinged to each other and a pair of graspers correspondingly connected to front ends of the pair of grip handles 21; a traction wire 4, one end of which is connected with a pair of gripping handles or one gripping handle; a puncture needle 5, the tail end of which is provided with a needle hole used for being connected with the other end of the pull wire 4; wherein, a pair of grasping handles 21 are grasped by a pair of grasping forceps heads 14, and the pair of grasping forceps are driven by the pair of grasping handles 21 to open first to contain the target tissue and then close to grasp the target tissue; wherein, the puncture needle 5 drives the traction wire 4 to draw the gripper 2 which grips the target tissue so as to fully expose the operation visual field. Specifically, as shown in fig. 1 to 3, the endoscope releaser 1 of the present embodiment includes a handle 11 having a fixed handle and a movable handle, a clamping rod 13 connected to the handle 11, a wheel 12 sleeved at the joint of the clamping rod 13 and the handle 11, and a pair of clamping jaws 14 disposed at the front end of the clamping rod 13. The operator can adjust the angle of the pair of front nipples 14 by rotating the wheel 12 with the index finger, and can clamp or open the pair of nipples 14 by moving the movable handle relative to the fixed handle to clamp or open the handle 11, to bring the pair of graspers of the grasper 2 to loosen or grasp the target tissue.
Among the above-mentioned members of the endoscopic releaser 1, the structures of the members other than the pair of holding forceps tips 14 can be referred to the structure of an endoscopic separative forceps used in endoscopic surgery in the related art, and therefore, the structures of these members will not be described in detail herein.
In order to quickly align and hold the pair of grip handles 21 of the gripper 2 when the scope releaser 1 holds the gripper 2, the present embodiment also has a quick positioning structure which can adopt a structure as shown in fig. 4, including: a pair of bosses 141 provided on opposite inner side walls of the pair of holding jaws 14; a pair of grooves 211 provided on the pair of grip handles 21, the grooves being perpendicular to the thickness direction of the grip handles; wherein the pair of bosses 141 are insertable into the pair of grooves 211. Alternatively, a pair of through holes (as shown in fig. 5) may be provided in the pair of grip handles 21, and the pair of bosses 141 may be inserted into the pair of through holes, respectively. Alternatively, the quick positioning structure of the present invention may also adopt the following structure (not shown in the drawings), including: a pair of grooves provided on opposite inner side walls of the pair of gripping heads; a pair of bosses arranged on the outer side walls of the pair of grab handles which are opposite to each other; wherein the pair of bosses are insertable into the pair of grooves.
In design, the clamping jaw 14 is in a hook shape as shown in fig. 4, that is, the clamping jaw 14 has a connecting section 143 whose extending direction is consistent with the extending direction of the length of the clamping rod 13 and a vertical section 142 vertically connected with the front end of the connecting section 143, and the boss 141 or the groove is provided on the inner side wall of the vertical section 142 facing the other clamping jaw, and the protruding direction of the boss 141 or the recessed direction of the groove is perpendicular to the extending direction of the length of the connecting section 143.
By inserting the bosses into the grooves or through holes, the endoscope releaser 1 can be quickly aligned and hold the pair of grasping handles 21 of the grasper 2, thereby improving the efficiency of the operation. In order to further improve the positioning speed and accuracy when the pair of clamping jaws 14 clamp the pair of handles 21, the bosses of this embodiment may be made of a magnetic material, such as a magnet, and correspondingly, at least a portion of the member provided with the grooves may be made of a material that can be attracted to the magnet, such as iron.
In order that the pair of gripper jaws 14 of the scope releaser 1 will not come loose when gripping the pair of grip handles 21 of the gripper 2, the projections are cylindrical in cross-section (not shown in the figures) and correspondingly the recesses are cylindrical in cross-section. Alternatively, as shown in fig. 4, the boss has a star-shaped cross section, and correspondingly, the groove has a star-shaped cross section.
Of course, in order to prevent the pair of handles 21 from being loosened when the pair of heads 14 are held, it is also possible to provide uneven texture, such as raised grains or toothed grains, on the inner side walls of the pair of heads 14 for holding the pair of handles 21. In use, the endoscope releaser 1 of the embodiment clamps the gripper 2 in vitro (when the endoscope releaser 1 clamps the gripper 2, the pair of clamping forceps heads 14 of the endoscope releaser 1 are opened to clamp the pair of gripping handles of the gripper 2, then the gripper 2 is sent into the thoracic cavity through a surgical incision, when the target position is reached, the handles of the endoscope releaser 1 are gripped to close the pair of clamping forceps heads, so that the pair of grippers are driven to open through the pair of gripping handles, the jaws of the pair of grippers contain target tissues, then the handles are released, the closing force of the pair of clamping forceps heads is reduced, the jaws of the pair of grippers are gradually closed to grasp the target tissues to be grasped through the pair of grippers 2, after the handles of the endoscope releaser are completely released, the gripper for grasping the target tissues is separated from the endoscope releaser, and the endoscope releaser 1 can be withdrawn from the thoracic cavity, thus, the subsequent operation can be carried out without the endoscope releaser 1, solves the following problems existing in the operation in the prior art: in the operation, the endoscope releaser 1 is required to be inserted into an incision all the time, and a plurality of surgical instruments enter and exit the same incision together, so that operation interference is generated among the plurality of surgical instruments; or, a plurality of incisions are needed for a plurality of surgical instruments to enter and exit, so that the trauma to the patient caused by the plurality of incisions is increased, and the rehabilitation of the body of the patient is not facilitated.
After the grasper 2 of the embodiment is sent into the thoracic cavity by the laparoscope releaser, the grasper can grasp the target tissue in the thoracic cavity of the patient, and can be connected with the pull wire 4 and the puncture needle 5, so that the puncture needle 5 can drive the pull wire 4 to pass through the body cavity of the patient, and then the grasper 2 is pulled outside the body of the patient through the pull wire, so that the target tissue is pulled through the grasper 2, the operation visual field is fully exposed, the operation incision is not occupied, the target tissue can be pulled from the direction different from the incision, and the operation habit of the normal operation of the doctor is met, namely the habit of the doctor not performing the operation under the laparoscope is met.
As shown in fig. 5, the gripper 2 of the present embodiment has a pair of grip handles 21 hinged to each other and a pair of graspers, i.e., a first grasper 22 and a second grasper 23, connected to the front ends of the pair of grip handles 21, respectively. A pair of graspers may be clamped against each other.
Wherein, set up the afterburning structure that a pair of nipper of being convenient for grabbed the target tissue at the relative inside wall (the surface of laminating each other when pressing from both sides tight laminating promptly) of a pair of nipper, afterburning structure can adopt following structure, includes: a recessed formation provided on an inner side wall of a first grasper 22 of the pair of graspers; a projecting formation provided on an inner side wall of a second one 23 of the pair of graspers; alternatively, the following structure may be adopted, including: a projecting formation provided on an inner side wall of a first one of the pair of graspers 22; a recess formation provided on the inner side wall of the second of the pair of graspers 23. The concave structure is matched with the convex structure so as to increase the force for clamping the target tissue by the pair of the grasping forceps and ensure that the target tissue is stressed uniformly and is prevented from being damaged when being clamped.
The protruding structure may be a plurality of protruding points (not shown), or one or more tooth-shaped protrusions, or a wave-shaped protrusion, and correspondingly, the recessed structure may be a concave pit or a tooth-shaped groove (as shown in fig. 6) or a wave-shaped groove adapted to the protruding points, the tooth-shaped protrusions, or the wave-shaped protrusions.
In design, a structure as shown in fig. 6 may be adopted, in which a toothed groove 221 extending along the length of the inner side wall of the first grasper 22 is provided at the center thereof, and a toothed protrusion 231 extending along the length of the inner side wall of the second grasper 23 is provided, and the protrusion 231 may be inserted into the groove 221. Alternatively, a plurality of tooth-shaped grooves as shown in fig. 7 may be employed.
The pair of grasping handles 21 and the pair of grasping forceps of the grasping device 2 can be made of memory metal respectively, the pair of grasping handles 21 open the pair of grasping forceps when being clamped by the endoscope releaser, and the pair of grasping forceps can be automatically closed after the pair of grasping forceps grasp the target tissue and the endoscope releaser is withdrawn from the thoracic cavity, so that the target tissue is clamped through the closed jaws.
Alternatively, the pair of grip handles 21 of the gripper 2 may be hinged together in a structure as shown in fig. 8, that is, the pair of grip handles 21 may be connected together by a hinge shaft, and a spring 24 is fitted over the hinge shaft to close the pair of opened grippers by the elastic restoring force of the spring 24 itself. The structure of the pair of handles 21 hinged to each other can be further referred to the hinged structure of clothes-peg in the prior art and other structures that can make the hinged elements close automatically after opening, and will not be described again here.
When in design, the gripping handle of the present embodiment may adopt a two-stage structure as shown in fig. 5, that is, a rear section of the gripping handle and a front section of the gripping handle are bent, and the gripping forceps correspondingly connected to the gripping handle extend forward from the front section of the gripping handle along the extending direction of the clamping rod. During design, the forward-extending grasping forceps can extend forwards in an arc shape, for example, the arc center of the grasping forceps is positioned on the length extension line of the whole grasping device 2 or below the extension line. Alternatively, the forwardly extending graspers may be extended linearly forwardly.
Wherein, the boss or the groove or the through hole arranged on the grab handle are arranged on the rear section of the grab handle. In addition, in order to facilitate the connection of the traction wire 4 to the gripper 2, in this embodiment, a fixing hole 212 is provided at the rear end of a pair of grip handles or a grip handle (as shown in fig. 5, a fixing hole is provided at the rear end of the rear section of a pair of grip handles), and one end of the traction wire 4 is directly or indirectly fixed to the fixing hole 212, for example, one end of the traction wire is directly tied to the fixing hole 212, or alternatively, a connection ring 3 may be tied to one end of the traction wire 4 and the connection ring is looped through the fixing hole 212 (as shown in fig. 9).
The other end of the pull wire 4 is connected with a puncture needle 5, and the tail end of the puncture needle 5 is provided with a needle hole used for being connected with the other end of the pull wire 4. When designed, the needle head of the puncture needle 5 can adopt the structure shown in fig. 10-13, namely, the needle head 51 is conical, and the periphery of the cross section of the needle head 51 is in a shape of asterism (as shown in fig. 11 and 13), namely, the outer wall of the needle head is provided with convex ridges and concave grooves at intervals, so that the sharpness of the puncture needle 5 when puncturing tissues is increased, and the damage to the tissues can be reduced.
When in design, the traction wire 4 adopts a single-stranded suture line with the length of about 30cm, and scales are arranged on the traction wire 4 every 1cm so as to conveniently measure the distance between the gripper and the chest wall. And the puncture needle 5 can adopt a pointed needle with the length of about 8 cm. The traction wire 4 is driven by the puncture needle 5 to penetrate out of the body cavity of the patient, and then the gripper 2 after gripping the tissue is pulled by the traction wire 4, so that the function of exposing the operation visual field is realized.
Next, the use of the grasping apparatus of the present embodiment is described.
A gripping process: the endoscope releaser clamps a pair of grasping handles at the rear end of the grasper outside the body of a patient, sends the grasper into the thoracic cavity through a surgical incision, and grasps a handle of the endoscope releaser at a target position to open a pair of grasping forceps at the front end of the grasper, the pair of opened grasping forceps supports a target tissue to be grasped, and then slowly releases the endoscope releaser, so that the tissue to be grasped can be grasped by the pair of grasping forceps of the grasper. The handle of the laparoscopic releaser is fully released and the laparoscopic releaser is withdrawn from the thorax. After a needle holder (which is an instrument for conventional operations in the prior art) is used for holding puncture to suture tissue, the puncture needle penetrates through the chest wall from inside to outside according to the traction direction required, part of traction lines are taken out by the puncture needle, and then the traction lines are pulled outside the chest wall to achieve the effect of tissue traction.
Loosening/removal process: after the traction operation is finished, the traction wire is cut off in the thoracic cavity by scissors, the endoscope releaser is stretched into the thoracic cavity and clamps the pair of grasping handles of the grasper, the handle of the endoscope releaser is grasped, the pair of graspers of the grasper is opened and the grasped tissue is loosened, and then the endoscope releaser and the grasper are withdrawn.
The gripping device of the present invention is developed in view of the following existing circumstances in the prior art: present under scope tissue gripper all need be through incision operation, and present under the endoscope operation tend to single mouthful, less mouthful of ization, and the same incision of the common business turn over of a plurality of surgical instruments must produce mutual interference, and the angle of tractive is too concentrated, can not realize being the tractive of angle and exposing the position of target tissue, increases the operation degree of difficulty and can increase the operation risk even, is unfavorable for operation safety, convenient going on.
By adopting the grasping device, the rear end of the grasping device is connected with the puncture needle through the traction wire, the puncture needle can be pulled out of the body to pull the tissues, the operation incision is not occupied, and the tissues can be pulled from the direction different from the incision, so that the aims of reducing the length of the operation incision and reducing the number of incisions are achieved, meanwhile, the tissues can be pulled from the direction of the non-operation incision, the operation habit of normal operation is met, the mutual interference among instruments is avoided, the operation efficiency is improved, and the operation is convenient. In addition, the reduction of incisions and surgical instruments may reduce trauma to the patient's body and reduce the patient's medical costs. The endoscope releaser is quickly aligned with and clamps the gripper, so that the operation time can be shortened, and the working efficiency is improved.
Although the embodiments of the present invention have been described in detail, the embodiments of the present invention are not limited thereto, and those skilled in the art can modify the principles of the embodiments of the present invention, and therefore, various modifications made in accordance with the principles of the embodiments of the present invention should be understood to fall within the scope of the embodiments of the present invention.
Claims (10)
1. An incision-free tissue grasping device for an endoscope, comprising:
the endoscope releaser is provided with a clamping rod and a pair of clamping forceps heads which are arranged at the front end of the clamping rod and can be opened or closed;
the gripper is provided with a pair of gripping handles which are hinged with each other and a pair of gripping tongs correspondingly connected with the front ends of the gripping handles;
one end of the traction wire is connected with the pair of the grabbing handles or one grabbing handle;
the tail end of the puncture needle is provided with a needle hole used for being connected with the other end of the traction wire;
the pair of grasping handles are grasped by the pair of grasping forceps heads, and the pair of grasping forceps are driven by the pair of grasping handles to open to contain the target tissue and close to grasp the target tissue;
wherein, the puncture needle drives the traction wire to pull the gripper after gripping the target tissue so as to expose the operation field.
2. The incision-free tissue grasping device for an endoscope according to claim 1, further comprising a quick positioning structure for quickly aligning a pair of grasping forceps heads of the endoscope releaser and grasping a pair of grasping handles of the grasper.
3. The incision-free tissue grasping device for an endoscope according to claim 2, wherein the quick positioning structure comprises:
a pair of bosses provided on opposite inner side walls of the pair of gripping bits;
a pair of grooves or a pair of through holes provided on the pair of grip handles;
wherein the pair of bosses are insertable into the pair of grooves or the pair of through holes.
4. The incision-free tissue grasping device for an endoscope according to claim 2, wherein the quick positioning structure comprises:
a pair of grooves provided on opposite inner side walls of the pair of gripping bits;
the pair of bosses are arranged on the outer side walls of the pair of grabbing handles which are opposite to each other;
wherein the pair of bosses are insertable within the pair of grooves.
5. The incision-free tissue grasping device for an endoscope according to claim 3, wherein the boss is a boss having a cylindrical or star-shaped cross section, and the groove is a groove having a cylindrical or star-shaped cross section.
6. An incision-free tissue grasping device for an endoscope according to any one of claims 1 to 5, wherein opposing inner side walls of a pair of graspers of said grasper are provided with a force application structure facilitating grasping of a target tissue by the pair of graspers.
7. The incision-free tissue grasping device for an endoscope according to any one of claims 1 to 5, wherein the urging structure comprises:
a recessed or protruding formation provided on an inner side wall of a first of the pair of graspers;
a male or female formation provided on an inner side wall of a second of the pair of graspers;
the concave structure is matched with the convex structure so as to increase the force of the pair of graspers for grasping the target tissue and ensure that the target tissue is uniformly stressed and is prevented from being damaged when being grasped.
8. The incision-free tissue grasping device for an endoscope according to claim 7, wherein the protruding structure comprises a convex point or a tooth-shaped protrusion or a wave-shaped protrusion, and the recessed structure comprises a concave pit or a tooth-shaped groove or a wave-shaped groove adapted to the convex point or the tooth-shaped protrusion or the wave-shaped protrusion.
9. The incision-free tissue grasping device for an endoscope according to claim 1, wherein a rear end of the pair of grip handles or one grip handle is provided with a fixing hole, and one end of the traction wire is directly or indirectly fixed to the fixing hole.
10. An incision-free tissue grasping device for an endoscope according to claim 1, wherein said puncture needle tip has a star-shaped cross section to increase the puncture ability of the needle tip and to reduce the damage to the target tissue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069161.5A CN110742659A (en) | 2019-11-05 | 2019-11-05 | Incision-free tissue grasping device for endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069161.5A CN110742659A (en) | 2019-11-05 | 2019-11-05 | Incision-free tissue grasping device for endoscope |
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| CN110742659A true CN110742659A (en) | 2020-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974715A (en) * | 2021-12-23 | 2022-01-28 | 极限人工智能有限公司 | Execution assembly, instrument and laparoscopic surgery system |
| CN114129208A (en) * | 2021-12-07 | 2022-03-04 | 西安赛德欧医疗研究院有限公司 | Magnetic tissue traction device and medical equipment suitable for endoscopic surgery |
| CN114403956A (en) * | 2022-03-07 | 2022-04-29 | 山东省千佛山医院 | Heart tissue retractor |
-
2019
- 2019-11-05 CN CN201911069161.5A patent/CN110742659A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129208A (en) * | 2021-12-07 | 2022-03-04 | 西安赛德欧医疗研究院有限公司 | Magnetic tissue traction device and medical equipment suitable for endoscopic surgery |
| CN113974715A (en) * | 2021-12-23 | 2022-01-28 | 极限人工智能有限公司 | Execution assembly, instrument and laparoscopic surgery system |
| CN114403956A (en) * | 2022-03-07 | 2022-04-29 | 山东省千佛山医院 | Heart tissue retractor |
| CN114403956B (en) * | 2022-03-07 | 2023-08-29 | 山东省千佛山医院 | Heart tissue retractor |
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