CN111772733B - Two-way grasping forceps for digestive endoscopy - Google Patents
Two-way grasping forceps for digestive endoscopy Download PDFInfo
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- CN111772733B CN111772733B CN202010725561.3A CN202010725561A CN111772733B CN 111772733 B CN111772733 B CN 111772733B CN 202010725561 A CN202010725561 A CN 202010725561A CN 111772733 B CN111772733 B CN 111772733B
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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
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
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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
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Abstract
The invention discloses a bidirectional grasping forceps for a digestive endoscope, which comprises a sleeve, a push cylinder, a rotating rod and a closing mechanism, wherein one end of the sleeve is rotatably provided with a threaded sleeve, the other end of the sleeve is symmetrically provided with a groove, the two sides of the groove are symmetrically hinged with a foot post respectively, and the end of the foot post is hinged with a foot block; the push cylinder is arranged in the sleeve, and the outer wall of the push cylinder is in threaded connection with the threaded sleeve; the rotating rod is arranged in the push cylinder, a main gear is arranged at the end inside the sleeve, and a nut is arranged at the end outside the push cylinder; the closing mechanism is hinged with the foot post and the push cylinder respectively and is folded or unfolded along with the up-and-down movement of the push cylinder, the unfolded closing mechanism rotates along with the rotating rod to move relatively, and the position of the closing mechanism moving along with the rotating rod is fixed in real time. When the tissue is pulled and closed, the force in the horizontal direction is used, the perforation part is better closed, and the tissue damage is reduced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a pair of bidirectional grasping forceps for a digestive endoscope.
Background
The perforation of the digestive tract is a clinical common surgical acute abdomen, the disease is emergent, the disease condition changes rapidly, the emergency treatment is needed, the emergency surgical operation is generally carried out, and with the development of the digestive endoscopy technology, the perforation is directly closed under the endoscope, so that the great operation wound of a patient is avoided; at present, the clamping and closing are mainly carried out through a clamp, the clamp has an angle relative to the tissue when the clamp is used for clamping and closing, and the tissue is easy to puncture when the clamp is in small contact with the tissue; the force applied by the existing clamping device during clamping is divided into a force in the horizontal direction and a force in the vertical direction, the force in the horizontal direction enables the tissue to close the perforation, the force in the vertical direction pulls the tissue to move upwards, a larger force needs to be applied during clamping, the moving distance of the pulled tissue is larger, and the tissue is easily damaged; and the current clip is difficult to fix the moving distance of the drawn tissues in opposite directions in real time in the clamping process.
In view of the above, the following problems are present in the current treatment of pinching of a perforation of the digestive tract:
1. the clip is used for clamping and closing, the clip has an angle relative to the tissue when the clip is used for clamping and closing, and the tissue is easy to puncture when the clip is in small contact with the tissue.
2. The force applied by the existing clamping device during clamping is divided into force in the horizontal direction and force in the vertical direction, the force in the horizontal direction enables tissues to close and perforate, the force in the vertical direction pulls the tissues to move upwards, larger force needs to be applied during clamping, the moving distance of the pulled tissues is larger, and the tissues are easily damaged.
3. The current clip is difficult to fix the moving distance of the drawn tissues in opposite directions in real time in the clamping process.
Disclosure of Invention
In order to solve the problems, the invention designs the bidirectional grasper for the digestive endoscope, which uses horizontal force when pulling and closing tissues, better closes a perforation part and reduces tissue damage.
In order to solve the above technical problems and achieve the above technical effects, the present invention is implemented by the following technical contents:
a bidirectional grasping forceps for a digestive endoscope comprises a sleeve, a push cylinder, a rotating rod and a closing mechanism, wherein one end of the sleeve is rotatably provided with a threaded sleeve, the other end of the sleeve is symmetrically provided with a groove, two sides of the groove are symmetrically hinged with a foot post respectively, and the end of the foot post is hinged with a foot block; the push cylinder is arranged in the sleeve, and the outer wall of the push cylinder is in threaded connection with the threaded sleeve; the rotating rod is arranged in the push cylinder, a main gear is arranged at the end inside the sleeve, and a nut is arranged at the end outside the push cylinder; the closing mechanism is hinged with the foot post and the push cylinder respectively and is folded or unfolded along with the up-and-down movement of the push cylinder, the unfolded closing mechanism rotates along with the rotating rod to move relatively, and the position of the closing mechanism moving along with the rotating rod is fixed in real time.
Furthermore, the closing mechanism comprises a groove plate and a clamping plate, the groove plate is a hollow rectangular body with an opening at one end, a sliding groove communicated with the interior of the groove plate is formed in the end face of the groove plate, through grooves are formed in two sides of the sliding groove, toothed plates are arranged in symmetrical inner walls of the interior of the groove plate in a sliding mode, springs are arranged between the toothed plates and the groove plate, and gear teeth are arranged on the toothed plates; the clamping plate comprises a transverse plate and a vertical plate, the vertical plate is arranged on the transverse plate to form a T-shaped plate-shaped structure, through grooves are formed in the end face of the vertical plate, gear teeth meshed with the toothed plate are arranged on two side faces of the transverse plate, the through grooves are symmetrically formed in the end face of the transverse plate, and gear teeth matched with the main gear are arranged at the upper end, far away from the transverse plate, of the vertical plate; the sliding blocks are arranged in the sliding grooves of the groove plates and the through grooves of the vertical plates, the sliding blocks are hinged with the push cylinder through connecting rods, the groove plates and the transverse plates are installed on the sleeve through the through grooves and the foot blocks in a matched mode, and the bottom ends of the groove plates and the clamping plates are provided with fixing mechanisms.
Further, the teeth of a cogwheel on the pinion rack forms the acute angle with the pinion rack and the teeth of a cogwheel inclines towards the closed end of trough plate, the teeth of a cogwheel on the diaphragm forms the acute angle with the diaphragm and meshes with the last teeth of pinion rack.
Furthermore, one end of the vertical plate exceeds the end of the transverse plate, and the end of the vertical plate exceeding the transverse plate is positioned in the sliding groove after the closing device is unfolded.
Furthermore, the fixing mechanism is a plurality of hooks arranged at the bottom ends of the groove plate and the clamping plate, and the bending directions of the hooks on the groove plate and the clamping plate are opposite.
Furthermore, the fixing mechanism is a plurality of adsorption holes formed in the bottom ends of the groove plate and the clamping plate, air passages communicated with the adsorption holes are formed in the connecting rod and the push cylinder, and an air pump is connected outside the air passages on the push cylinder.
Another object of the present invention is to provide a use of the bidirectional grasper for an alimentary endoscope in perforation of an alimentary canal:
when the bidirectional grasping forceps are used for closing the perforation part, the rotating screw sleeve pushes the push cylinder to move under the action of the thread, the rotating rod is driven to synchronously move in the moving process of the push cylinder, and the closing device is pushed out of the end head of the sleeve, in the process of pushing the closing device, the closing device is slowly unfolded until the end of the sleeve is completely pushed out and then is unfolded into a long strip shape, the vertical plate is positioned in the sliding groove, the unfolded closing devices are placed on two sides of the position of the perforation, the tissues are connected by using a groove plate and hooks or adsorption holes at the bottom end of the clamping plate, a rotating rod is pushed downwards by a downward pressing nut to enable the main gear to move downwards to be meshed with gear teeth on the vertical plate, the clamping plate is pushed into the groove plate by the rotating nut under the meshing of the main gear and the gear teeth on the vertical plate, the distance between the tissues on two sides of the perforation is shortened by meshing the gear teeth on the toothed plates inside the groove plate, and the position of the perforation is closed slowly along with the continuous entering of the clamping plate into the groove plate; in the process that the cardboard got into the frid, the teeth of a cogwheel of cardboard both sides and the teeth of a cogwheel meshing on the pinion rack, and the teeth of a cogwheel on the pinion rack forms the acute angle with the pinion rack and the teeth of a cogwheel inclines towards the blind end of frid, the teeth of a cogwheel on the diaphragm form the acute angle with the diaphragm and with the last teeth of a cogwheel meshing of pinion rack, and be equipped with the spring between pinion rack and the frid for real-time fixed position when cardboard gets into the frid, and can provide the tissue closure of power on the horizontal direction with perforation position.
The invention has the beneficial effects that:
1. through setting up the closing mechanism and providing the power of horizontal direction when closed perforation position, laborsaving more when the closure, and difficult damage that causes the tissue.
2. Through set up pinion rack and cardboard meshing on closing mechanism, can keep real-time rigidity when the tissue of tractive perforation position both sides, can not cause closing mechanism's slippage because of the tension of tissue, avoid carrying out the tractive closure repeatedly.
3. Through setting up the absorption hole can not harm the tissue under the condition of absorbing perforation both sides tissue to can assist the closure of accomplishing the perforation.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram showing the overall structure of a bi-directional grasper for a digestive endoscope according to the present invention;
FIG. 2 is a schematic structural view of a push cylinder and a rotating rod of the bidirectional grasping forceps for a digestive endoscope of the present invention;
FIG. 3 is a schematic view of the structure of the end of the sleeve of the bi-directional grasper for a digestive endoscope of the present invention;
FIG. 4 is a schematic structural diagram of a closing mechanism of the bidirectional grasper for a digestive endoscope of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-sleeve, 101-leg column, 102-leg block, 103-groove, 2-push cylinder, 3-rotating rod, 301-nut, 302-connecting rod, 303-sliding block, 4-closing mechanism, 5-thread sleeve, 6-main gear, 7-slotted plate, 701-sliding groove, 702-through groove, 703-toothed plate, 8-vertical plate, 9-transverse plate, 10-hook and 11-gear tooth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For a more clear description of the invention, the following description is made with reference to specific embodiments:
example 1
Referring to fig. 1-4, the bidirectional grasping forceps for the digestive endoscope comprises a sleeve 1, a push cylinder 2, a rotating rod 3 and a closing mechanism 4, wherein one end of the sleeve 1 is rotatably provided with a threaded sleeve 5, the other end of the sleeve is symmetrically provided with a groove 103, two sides of the groove 103 are symmetrically hinged with a foot pillar 101 respectively, and the end of the foot pillar 101 is hinged with a foot block 102; the push cylinder 2 is arranged in the sleeve 1, and the outer wall of the push cylinder is in threaded connection with the threaded sleeve 5; the rotating rod 3 is arranged inside the push cylinder 2, a main gear 6 is arranged at the end inside the sleeve 1, and a nut 301 is arranged at the end outside the push cylinder 2; the closing mechanism 4 is respectively hinged with the socle 101 and the push cylinder 2 and is folded or unfolded along with the up-and-down movement of the push cylinder 2, the unfolded closing mechanism 4 rotates along with the rotating rod 3 to move relatively, and the position of the closing mechanism 4 moving along with the rotating rod 3 is fixed in real time. The closing mechanism 4 provides a horizontal force when closing the perforation site, is more labor-saving when closing, and is less prone to tissue damage.
The closing mechanism 4 comprises a groove plate 7 and a clamping plate, the groove plate 7 is a hollow rectangular body with an opening at one end, a sliding groove 701 communicated with the inside of the groove plate 7 is arranged on the end face of the groove plate 7, through grooves 702 are arranged on two sides of the sliding groove 701, toothed plates 703 are arranged in symmetrical inner walls of the inside of the groove plate 7 in a sliding mode, springs are arranged between the toothed plates 703 and the groove plate 7, and gear teeth 11 are arranged on the toothed plates 703; the clamping plate comprises a transverse plate 9 and a vertical plate 8, the vertical plate 8 is arranged on the transverse plate 9 to form a T-shaped plate-shaped structure, through grooves 702 are formed in the end face of the vertical plate 8, gear teeth 11 meshed with the toothed plate 703 are arranged on two side faces of the transverse plate 9, the through grooves 702 are symmetrically formed in the end face, and gear teeth 702 matched with the main gear 6 are arranged at the upper end part, far away from the transverse plate 9, of the vertical plate 8; the sliding blocks 303 are arranged in the sliding grooves 701 of the groove plate 7 and the through grooves 702 of the vertical plate 8, the sliding blocks 303 are hinged with the push cylinder 2 through the connecting rods 302, the groove plate 7 and the transverse plate 9 are installed on the sleeve 1 through the through grooves 702 and the foot blocks 102 in a matched mode, and fixing mechanisms are arranged at the bottom ends of the groove plate 7 and the clamping plates.
Example 2
Based on embodiment 1, the gear teeth 11 on the tooth plate 703 form an acute angle with the tooth plate 703 and the gear teeth 11 are inclined toward the closed end of the slot plate 7, and the gear teeth 11 on the transverse plate 9 form an acute angle with the transverse plate 9 and are engaged with the upper gear teeth 11 of the tooth plate 703. The real-time position can be kept fixed when tissues on two sides of the perforation position are drawn, the slipping of the closing mechanism 4 cannot be caused by the tension of the tissues, and the repeated drawing and closing are avoided.
One end of the vertical plate 8 exceeds the end of the transverse plate 9, and the end of the vertical plate 8 exceeding the transverse plate 9 is positioned in the sliding groove 701 after the closing device 4 is unfolded.
The fixing mechanism is a plurality of hooks 10 arranged at the bottom ends of the groove plate 7 and the clamping plate, and the bending directions of the hooks 10 on the groove plate 7 and the clamping plate are opposite.
Example 3
Based on embodiment 1, the fixing mechanism is a plurality of adsorption holes arranged at the bottom ends of the groove plate 7 and the clamping plate, and an air passage communicated with the adsorption holes is arranged inside the connecting rod 302 and inside the push cylinder 2, and an air pump is connected outside the air passage on the push cylinder 2. The tissues at the two sides of the perforation part are closed after being adsorbed by the two suction holes of the air pump.
Example 4
The invention discloses a two-way nipper for a digestive endoscope, which is specifically applied to digestive tract perforation and comprises the following components in parts by weight:
when the bidirectional grasping forceps are used for closing a perforation part, the push cylinder 2 is pushed to move under the action of threads by rotating the threaded sleeve 5, the push cylinder 2 drives the rotating rod 3 to move synchronously in the moving process, the closing device 4 is pushed out of the end of the sleeve, in the process of pushing the closing device 4, the closing device 4 is slowly unfolded until the end of the sleeve 1 is completely pushed out and then unfolded into a long strip shape, the vertical plate 8 is positioned in the sliding groove, the unfolded closing device 4 is placed at two sides of the perforation position, the tissues are connected by using the slotted plate 7 and the hook 10 or the adsorption hole at the bottom end of the clamping plate, the rotating rod 3 is pushed downwards by the pressing nut 301, so that the main gear 6 moves downwards to be meshed with the gear teeth 11 on the vertical plate 8, the rotating nut 301 pushes the clamping plate into the slotted plate 7 under the meshing of the main gear 6 and the gear teeth 11 on the vertical plate 8, the gear teeth 11 at two sides of the clamping plate are meshed with the, the position of the perforation is slowly closed along with the continuous entering of the clamping plate into the groove plate 7; in the process that the cardboard gets into frid 7, the teeth of a cogwheel 11 on the teeth of a cogwheel 11 and the pinion rack 703 of cardboard both sides mesh, and the teeth of a cogwheel 11 on the pinion rack 703 forms the acute angle and the teeth of a cogwheel 11 inclines towards the closed end of frid 7 with pinion rack 703, the teeth of a cogwheel 11 on the diaphragm 9 forms the acute angle and meshes with the last teeth of a cogwheel 11 of pinion rack 703 with diaphragm 9, and be equipped with the spring between pinion rack 703 and the frid 7, real-time position is fixed when making the cardboard get into frid 7, and can provide the tissue closure of the power on the horizontal direction with perforation position.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a two-way nipper is used to digestion scope which characterized in that: the device comprises a sleeve, a push cylinder, a rotating rod and a closing mechanism, wherein one end of the sleeve is rotatably provided with a threaded sleeve, the other end of the sleeve is symmetrically provided with a groove, the two sides of the groove are symmetrically hinged with a socle respectively, and the end of the socle is hinged with a socle block; the push cylinder is arranged in the sleeve, and the outer wall of the push cylinder is in threaded connection with the threaded sleeve; the rotating rod is arranged in the push cylinder, a main gear is arranged at the end inside the sleeve, and a nut is arranged at the end outside the push cylinder; the closing mechanism is hinged with the foot post and the push cylinder respectively, and is folded or unfolded along with the up-and-down movement of the push cylinder, the unfolded closing mechanism rotates along with the rotating rod to move relatively, and the position of the closing mechanism moving along with the rotating rod is fixed in real time;
the closing mechanism comprises a groove plate and a clamping plate, the groove plate is a hollow rectangular body with an opening at one end, a sliding groove communicated with the interior of the groove plate is formed in the end face of the groove plate, through grooves are formed in two sides of the sliding groove, toothed plates are arranged in symmetrical inner walls of the interior of the groove plate in a sliding mode, springs are arranged between the toothed plates and the groove plate, and gear teeth are arranged on the toothed plates; the clamping plate comprises a transverse plate and a vertical plate, the vertical plate is arranged on the transverse plate to form a T-shaped plate-shaped structure, through grooves are formed in the end face of the vertical plate, gear teeth meshed with the toothed plate are arranged on two side faces of the transverse plate, the through grooves are symmetrically formed in the end face of the transverse plate, and gear teeth matched with the main gear are arranged at the upper end, far away from the transverse plate, of the vertical plate; the sliding blocks are arranged in the sliding grooves of the groove plates and the through grooves of the vertical plates, the sliding blocks are hinged with the push cylinder through connecting rods, the groove plates and the transverse plates are installed on the sleeve through the through grooves and the foot blocks in a matched mode, and the bottom ends of the groove plates and the clamping plates are provided with fixing mechanisms.
2. The bi-directional grasper for a digestive endoscope according to claim 1, wherein: the teeth of a cogwheel on the pinion rack forms the acute angle with the pinion rack and the teeth of a cogwheel inclines towards the blind end of frid, the teeth of a cogwheel on the diaphragm forms the acute angle with the diaphragm and meshes with the last gear teeth of pinion rack.
3. The bi-directional grasper for a digestive endoscope according to claim 1, wherein: one end of the vertical plate exceeds the end of the transverse plate, and the end of the vertical plate exceeding the transverse plate is positioned in the sliding groove after the closing device is unfolded.
4. The bi-directional grasper for a digestive endoscope according to claim 3, wherein: the fixing mechanism is a plurality of hooks arranged at the bottom ends of the groove plate and the clamping plate, and the bending directions of the hooks on the groove plate and the clamping plate are opposite.
5. The bi-directional grasper for a digestive endoscope according to claim 4, wherein: the fixing mechanism is a plurality of adsorption holes formed in the bottom ends of the groove plate and the clamping plate, air passages communicated with the adsorption holes are formed in the connecting rod and the push cylinder, and the air passages in the push cylinder are externally connected with an air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725561.3A CN111772733B (en) | 2020-07-24 | 2020-07-24 | Two-way grasping forceps for digestive endoscopy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725561.3A CN111772733B (en) | 2020-07-24 | 2020-07-24 | Two-way grasping forceps for digestive endoscopy |
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| CN111772733A CN111772733A (en) | 2020-10-16 |
| CN111772733B true CN111772733B (en) | 2021-05-14 |
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| CN202010725561.3A Active CN111772733B (en) | 2020-07-24 | 2020-07-24 | Two-way grasping forceps for digestive endoscopy |
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| CN202015218U (en) * | 2011-02-09 | 2011-10-26 | 杭州康基医疗器械有限公司 | Bi-directionally bendable blood vessel blocking grasping forceps |
| CN204364075U (en) * | 2014-12-17 | 2015-06-03 | 中国人民解放军第一七五医院 | A kind of scope nipper |
| CN209153922U (en) * | 2018-07-03 | 2019-07-26 | 田身才 | A kind of gastroenterology foreign body forceps |
| CN210447109U (en) * | 2019-06-17 | 2020-05-05 | 贵州省人民医院 | Two-way grasping forceps for digestive endoscopy |
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| PL1802245T3 (en) * | 2004-10-08 | 2017-01-31 | Ethicon Endosurgery Llc | Ultrasonic surgical instrument |
| CN102247180B (en) * | 2011-06-30 | 2013-01-02 | 李宝童 | Medical needle-holding forceps |
| US20140107697A1 (en) * | 2012-06-25 | 2014-04-17 | Castle Surgical, Inc. | Clamping Forceps and Associated Methods |
| CN206507985U (en) * | 2016-11-22 | 2017-09-22 | 马晓宇 | A kind of two-way nipper of digestive endoscopy |
| WO2019074606A1 (en) * | 2017-10-11 | 2019-04-18 | Boston Scientific Scimed, Inc. | Reinforced mechanical hemostasis clip |
| CN207785244U (en) * | 2017-10-19 | 2018-08-31 | 王学庆 | A kind of gastroscope treatment soft tissue folder |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202015218U (en) * | 2011-02-09 | 2011-10-26 | 杭州康基医疗器械有限公司 | Bi-directionally bendable blood vessel blocking grasping forceps |
| CN204364075U (en) * | 2014-12-17 | 2015-06-03 | 中国人民解放军第一七五医院 | A kind of scope nipper |
| CN209153922U (en) * | 2018-07-03 | 2019-07-26 | 田身才 | A kind of gastroenterology foreign body forceps |
| CN210447109U (en) * | 2019-06-17 | 2020-05-05 | 贵州省人民医院 | Two-way grasping forceps for digestive endoscopy |
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| CN111772733A (en) | 2020-10-16 |
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