CN110680465B - Semi-open and close type blade end for internal tissue excision - Google Patents
Semi-open and close type blade end for internal tissue excision Download PDFInfo
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- CN110680465B CN110680465B CN201911049684.3A CN201911049684A CN110680465B CN 110680465 B CN110680465 B CN 110680465B CN 201911049684 A CN201911049684 A CN 201911049684A CN 110680465 B CN110680465 B CN 110680465B
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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
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to a medical instrument, in particular to a semi-open type blade end for cutting internal tissues, which has an open state and a closed state, wherein when the blade end is in the closed state, a containing cavity is formed in the blade end, the containing cavity is communicated with the inner space of a catheter of an internal tissue cutter, the blade end also comprises a plurality of blades, and when the blade end is switched from the open state to the closed state, the blades scratch through tissues to be cut in a patient body to cut the tissues to be cut. The cutting edge end head directly avoids the risk that cut tissues remain in a patient body when the tissues are resected; in addition, the incision healing is facilitated, the subsequent operation is facilitated, and the operation quality is improved; on the other hand, the assistant cleaning step is saved, and the risk of infection in the patient is reduced; in addition, the excision process is fast, the efficiency is high, and the operation time is shortened.
Description
Technical Field
The invention relates to a medical instrument, in particular to a semi-open and close type blade end for cutting internal tissues.
Background
In the technical field of medical surgery, in vivo tissue excision is a common surgical mode, and the pathological tissue is prevented from being further spread by excision, so that the aim of treatment is fulfilled. Minimally invasive surgery is increasingly widely used for reasons of small surgical incision, less pain in the surgical process of patients, quick recovery of patients and the like.
In minimally invasive surgery, when tissue is resected, the current surgical mode is to cut the tissue by using a minimally invasive surgical knife, a surgical scissors, a minimally invasive electrotome and the like, and then to separate the tissue from the body, but in further research work, the inventor finds that the mode has the following defects:
with the current cutting surgical equipment, when tissue cutting is performed, tissue separation is not completed by one cutting or shearing action, but multiple times of shearing or cutting are needed to cut the tissue to be cut, during the multiple times of shearing or cutting, tissue fragments are most likely to be formed, although laparoscopically assisted, in-vivo tissues are complex, and blood and even tissue fluid are usually present in the surgical process, so even if assistant assisted cleaning is performed, any blind area exists in the visual field of an operator, so that the fragments of the tissue fragments are most likely to enter the tissues or the mucous membranes among the tissues, the subsequent cleaning work difficulty is extremely high, the surgical difficulty is greatly increased, the surgical time is greatly prolonged, and the surgical quality is not facilitated; furthermore, even more serious, if fragments of tissue fragments are left in the body, infection and the like can be caused to become a serious medical accident early. Therefore, there is a need to design an in vivo tissue ablation device for use in an in vivo tissue ablation procedure that facilitates the collection and cleaning of tissue fragment fragments and reduces the risk of tissue fragment carryover.
Disclosure of Invention
The invention aims at: aiming at the defects that tissue fragment fragments are difficult to collect and the residual risk is extremely high in the internal tissue excision operation in the prior art, the in-vivo tissue excision device capable of conveniently collecting and cleaning the tissue fragment fragments and reducing the residual risk of the tissue fragment fragments is provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a semi-open type blade end for internal tissue excision, the blade end has open state and closed state when the blade end is closed state form in the blade end and hold the chamber, hold the chamber and be linked together with the inner space of the pipe of internal tissue excision ware, the blade end still includes a plurality of blades when the blade end switches from open state to closed state, the blade is drawn through the internal tissue of waiting to excision of patient, realizes the cutting of waiting to excision tissue.
The cutting edge end head pushes the cutting edge end head to the tissue to be resected when performing a tissue resection operation, so that the cutting edge end head is in an open state, each cutting edge is positioned on a required resection separation path, and then the cutting edge end head is switched from the open state to the closed state, and the tissue to be resected is resected in the process. In such a way, when the tissue is resected, the resected and separated tissue naturally falls into the accommodating cavity in the end head of the blade, so that the risk that the resected tissue remains in a patient is directly avoided; the operation risk is greatly reduced; moreover, for the incision of the same blade, the separation can be realized by one-time cutting action, so that the risk that the cutting part of the conventional surgical scissors and other components repeatedly shears to form tiny tissue fragments is avoided; furthermore, the incision is flattened, so that the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, when the cutting edge tissue is cut off and falls into the accommodating cavity, the cutting edge end is in a closed state, if the cut tissue is bigger, the conventional surgical scissors and the like can be adopted to extend into the accommodating cavity to fracture the cut tissue, and the fracture process is carried out in the closed state of the cutting edge end accommodating cavity, so that firstly, the damage of the fracture process to surrounding normal tissues is avoided, the surgical quality is further improved, the inflow of tissue fluid or blood into a patient body is reduced or avoided, the step of cleaning by an assistant is saved, and the risk of infection in the patient body is also reduced;
furthermore, when the cut tissue is a tissue with independent shapes such as cyst, polyp and the like, the end of the cutting edge completely covers the cut tissue, so that the whole tissue is quickly cut and taken out; when the volume of the cut tissue is larger, the operation can be performed in a step-by-step cutting mode, the cutting process is fast, the efficiency is high, and the operation time is shortened.
As a preferred solution, the blade tip comprises a plurality of blades, the blades being of a sheet-like structure bulging towards the outside, the blades being arranged on the blades. The blade is bulged outwards, so that the accommodating cavity is formed on the inner side of the blade, and the blade end is light in weight due to the adoption of the sheet-shaped structure, so that the blade end is further convenient to control.
As a preferable technical scheme, the blades are uniformly distributed in the circumferential direction. The good consistency can be ensured in the opening process of each blade, and the grasping and prediction of the blade position of an operator are facilitated.
As a preferable technical scheme, when the blade ends are in an open state, the blades are separated from each other, and when the blade ends are in a closed state, the blades are connected to form the accommodating cavity.
As a preferable technical scheme, when the edge end is in a closed state, the blade is surrounded by a spherical structure or a spherical crown structure, and the accommodating cavity is positioned in the spherical structure or the spherical crown structure.
As another preferable technical scheme, when the edge end is in a closed state, the blade is surrounded by an ellipsoidal structure or an ellipsoidal crown structure, and the accommodating cavity is positioned in the ellipsoidal structure or the ellipsoidal crown structure.
In the scheme, a spherical structure or a spherical crown structure or an ellipsoidal crown structure is formed, the outer structure is smooth, surrounding tissues are prevented from being scratched in the process of entering the blade end, meanwhile, the tissue on an entering path can be spread by the blade end, the operation is further facilitated, and the operation steps are simplified.
As another preferable technical scheme, when the blade end is in a closed state, the blade is surrounded by a conical structure or a frustum-shaped structure, and the accommodating cavity is positioned in the conical structure or the frustum-shaped structure. The blade surrounds and is toper form structure or frustum form structure, owing to it has the edge structure existence, makes things convenient for the operating doctor to grasp the form of cutting edge end reliably, avoids the torsion of operation process cutting edge end and pulls the tissue, causes the tissue damage, and cutting edge end edge also can regard as the position reference.
As a preferable technical scheme, the conical structure of the blade end is conical or pyramid, and the frustum-shaped structure of the blade end is connected with the frustum-shaped structure of the cone or the frustum-shaped structure of the pyramid.
As a preferable technical scheme, the outer wall of one end of the blade end, which faces the tissue to be resected, is in a cambered surface shape. The cambered surface is formed by rounding the outer wall of the end part, so that the outer end face of the blade end is of a smooth transition structure, the blade end is beneficial to entering the tissue to be resected, and other tissues in a patient are prevented from being scratched in the entering process. Through the mode of this scheme, further reduce the risk of cutting edge end fish tail patient internal other tissues, also further make things convenient for the cutting edge end to prop up the internal tissue of patient and arrive the affected part.
Preferably, the blade ends are divided along the direction of the generatrix to form the blades.
As a preferred technical solution, the blade is provided with a blade along the direction of the blade end generatrix on both sides of the blade along the blade end generatrix.
Through the mode, the blade is switched towards the closed state, and the cutting action is that the end of the blade is closed into the linear state that the blade is gradually close to ensure the stable linearity of the tissue cutting process, so that the control of the operating doctor on the state of the operating process is facilitated.
As another preferable technical scheme, the blade is along the side edge of the blade end generatrix, one side edge is a blade edge, the other side plate is a flange, the blade edge is provided with a blade edge along the direction of the blade end generatrix, the flange is a flat side surface, and the blade edge of the blade is opposite to the flange of the adjacent blade. In the mode, the cutting of tissues is realized through the cooperation of the cutting edge and the side edge of the connected blade, the dislocation of the cutting edge when the cutting edge is opposite to the cutting edge is avoided, and the good sealing effect of the end head of the cutting edge is ensured.
As a further preferable scheme, grooves for matching with the respective corresponding blades are formed in the flanges, and when the blade ends are in a closed state, the blades are located in the respective corresponding grooves. The arrangement of the grooves further ensures the cutting action of the blade and further ensures the sealing effect of the blade end.
As a further preferable scheme, the groove is a V-shaped groove. When the cutting edge slides along the side wall of the V-shaped groove, the cutting separation effect can be realized more reliably, the flatness of the incision is further ensured, and the operation quality is improved.
As an optimal technical scheme, the lower end of the cutting edge is also provided with an annular cutter holder, the cutter holder is made of flexible silica gel materials, and the lower end of each blade is embedded into the cutter holder. The knife rest is arranged, so that the knife edge end formed by each knife edge has good integrity, and meanwhile, reliable sealing fit with other structures is facilitated.
The application also discloses a cutter adopting the blade end head,
a resectoscope for internal tissue resection comprising a semi-openable blade tip as described above.
As the preferable technical scheme, the resectoscope also comprises a catheter, one end of the catheter is an extending end used for extending into the body of a patient, the other end of the catheter is an operating end positioned outside the body of the patient, a blade end is arranged on the extending end, the resectoscope also comprises an operating component used for driving the blade end to switch between an open state and a closed state, one end of the operating component is arranged at the operating end of the catheter, and the other end of the operating component is matched with the blade end.
The resectoscope can be independently used when performing tissue resection operation, can also be matched with a conventional laparoscopic imaging system at present, can perform operation under the assistance of the laparoscopic imaging system, is pushed to a tissue to be resected by a catheter through an opening channel at an incision of the abdominal wall of a patient during operation, is made of medical silica gel materials or hospital rubber materials, can be used for entering the body of the patient, and has certain strength and deformability, for example, can be made of a conventional laparoscopic catheter material at present, an operator controls the blade end through an operation end of an operation part to enable the blade end to be in an open state, then adjusts the position and the angle of the blade end through the catheter to enable each blade to be in a required resection separation path, and then controls the blade end through the operation end of the operation part to enable the blade end to be in an open state to be switched to a closed state, so that the resected tissue to be resected is achieved in the process. Due to the adoption of the blade end, the risk that cut tissues remain in a patient body is directly avoided when the tissues are cut; the operation risk is greatly reduced; in addition, the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, the assistant cleaning step is saved, and the risk of infection in the patient is reduced; in addition, the excision process is fast, the efficiency is high, and the operation time is shortened.
As a preferable technical scheme, a first film sleeve is also connected between the tool apron and the outer wall of the operating part in a sealing way, and a second film sleeve is also connected between the operating part and the guide pipe in a sealing way.
The first film sleeve and the second film sleeve are made of medical resin films, and the two ends of the first film sleeve and the second film sleeve are hollow sleeve-shaped structures in an open mode, so that the medical resin film has good sealing effect and deformability. A well-sealed channel is formed between the blade end and the catheter through the first film sleeve and the second film sleeve, so that outflow of tissue fluid and blood of resected tissues is further avoided, and fragments of the tissues are prevented from falling into a patient at random.
As the preferable technical scheme fixedly connected with hangers on the blade middle part or well lower part round pin hub connection on the hangers have the connecting rod, the other end of connecting rod with pipe round pin hub connection, operating means include the push rod and with the pushing component that the push rod links to each other, pushing component with the lower extreme round pin hub connection of hangers, the push rod promotes pushing component towards when the cutting edge end removes, the cutting edge end opens gradually, the push rod pulling pushing component is towards deviating from when the direction of cutting edge end removes, the cutting edge end closes gradually.
As an optimal technical scheme, the hanging lugs are in an arc shape protruding outwards.
As a preferred technical scheme, a plurality of notches are arranged on the pushing component. The pushing component is provided with a notch, other surgical instruments such as a minimally invasive surgical scissors and a minimally invasive camera system can enter the accommodating cavity through the catheter to perform operation auxiliary work, and operation convenience and safety are further improved.
As another preferable embodiment, the pushing member has a ring-like structure. The annular structure is adopted, so that the pushing component has a larger space, and the operation is further convenient.
As a preferred technical solution, the push rod is a deformable elongated rod structure. The strength of the push rod ensures that the pushing member can be pushed forward smoothly, and the push rod also has a certain elasticity, ensuring that sufficient bending deformation can be provided to push the blade tip to the tissue portion to be resected.
As the preferable technical scheme, a guide plate is further arranged in the catheter operation end, a plurality of through holes are formed in the guide plate, and the inner wall of one through hole is in sliding fit with the push rod. Through the setting of deflector, support the push rod of operating end department, reduce the interference between push rod and the other equipment.
As a preferred technical solution, the position and the shape of at least one through hole on the guide plate correspond to the notch on the pushing component. So set up, further convenient in fact the entering of operation equipment.
As a preferable technical scheme, the resectoscope further comprises a sleeve, and the inner wall of the sleeve is in clearance fit with the catheter and the cutting edge end in a closed state. The sleeve is made of medical silica gel materials, the catheter and the blade end are arranged in the sleeve during operation, enter an affected part together with the sleeve from an abdominal incision of a patient, push the blade end to a tissue to be resected through the catheter, control the resection action of the blade end through the push rod, clear the resected tissue in the blade end out of the body by adopting other operation equipment when the resection is completed or the single resection is completed, or keep the sleeve still, pull the catheter out of the body from the sleeve, clear the tissue in the blade end accommodating cavity and stretch the sleeve into the affected part for next layer of cutting; and taking out the catheter and the blade end after the tissue to be resected is resected, adopting other surgical instruments to perform the operation of the subsequent surgical steps, and finally taking out the sleeve.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
the cutting edge end head pushes the cutting edge end head to the tissue to be resected when performing a tissue resection operation, so that the cutting edge end head is in an open state, each cutting edge is positioned on a required resection separation path, and then the cutting edge end head is switched from the open state to the closed state, and the tissue to be resected is resected in the process. In such a way, when the tissue is resected, the resected and separated tissue naturally falls into the accommodating cavity in the end head of the blade, so that the risk that the resected tissue remains in a patient is directly avoided; the operation risk is greatly reduced; moreover, for the incision of the same blade, the separation can be realized by one-time cutting action, so that the risk that the cutting part of the conventional surgical scissors and other components repeatedly shears to form tiny tissue fragments is avoided; furthermore, the incision is flattened, so that the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, when the cutting edge tissue is cut off and falls into the accommodating cavity, the cutting edge end is in a closed state, if the cut tissue is bigger, the conventional surgical scissors and the like can be adopted to extend into the accommodating cavity to fracture the cut tissue, and the fracture process is carried out in the closed state of the cutting edge end accommodating cavity, so that firstly, the damage of the fracture process to surrounding normal tissues is avoided, the surgical quality is further improved, the inflow of tissue fluid or blood into a patient body is reduced or avoided, the step of cleaning by an assistant is saved, and the risk of infection in the patient body is also reduced;
furthermore, when the cut tissue is a tissue with independent shapes such as cyst, polyp and the like, the end of the cutting edge completely covers the cut tissue, so that the whole tissue is quickly cut and taken out; when the volume of the cut tissue is large, the operation can be performed in a step-by-step cutting mode, the cutting process is fast, the efficiency is high, and the operation time is shortened;
the resectoscope directly avoids the risk that the resected tissue remains in a patient when the resected tissue is resected; the operation risk is greatly reduced; in addition, the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, the assistant cleaning step is saved, and the risk of infection in the patient is reduced; in addition, the excision process is fast, the efficiency is high, and the operation time is shortened.
Drawings
FIG. 1 is a schematic view of one embodiment of a resectoscope;
FIG. 2 is a schematic view of the structure of the blade tip after removal of the drip film sleeve, the second film sleeve and the sleeve;
FIG. 3 is a schematic view of the split structure of FIG. 2;
the marks in the figure: 1-blade end, 2-blade, 3-blade, 4-catheter, 5-groove, 6-blade holder, 7-first film sleeve, 8-second film sleeve, 9-pushing component, 10-hanging lug, 11-notch, 12-guide plate, 13-through hole, 14-sleeve, 15-push rod and 16-connecting rod.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1, as shown in figures 1-3,
a semi-open type blade end for internal tissue excision, the blade end has open state and closed state, when the blade end is closed state, form in blade end 1 and hold the chamber, hold the chamber and be linked together with the inner space of the pipe 4 of internal tissue excision ware, blade end 1 still includes a plurality of blades 3, when blade end 1 switches from open state to closed state, blade 3 is scraped the internal tissue of waiting to excision of patient, realizes the cutting of waiting to excision tissue.
In the blade tip 1 of the present embodiment, when performing a tissue resection operation, the blade tip 1 is pushed to the tissue to be resected, so that the blade tip 1 is opened, each blade 3 is positioned on a desired resection separation path, and then the blade tip 1 is switched from the opened state to the closed state, and in this process, the resection of the tissue to be resected is performed. In this way, when the tissue is resected, the resected and separated tissue naturally falls into the accommodating cavity in the blade end 1, so that the risk that the resected tissue remains in a patient is directly avoided; the operation risk is greatly reduced; moreover, for the incision of the same blade 3, separation can be realized by one-time cutting action, so that the risk that the cutting part of the conventional surgical scissors and other components repeatedly shears to form tiny tissue fragments is avoided; furthermore, the incision is flattened, so that the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, when the tissue of the blade 3 is cut and falls into the accommodating cavity, the blade end 1 is in a closed state, if the cut tissue is larger, the conventional surgical scissors and the like can be adopted to extend into the accommodating cavity to fracture the cut tissue, and the fracture process is carried out in the accommodating cavity of the blade end 1 in the closed state, so that firstly, the damage of the fracture process to surrounding normal tissues is avoided, the surgical quality is further improved, the inflow of tissue fluid or blood into a patient is reduced or avoided, the step of cleaning by an assistant is saved, and the risk of infection in the patient is also reduced;
furthermore, when the cut tissue is a tissue with independent shapes such as cyst, polyp and the like, the cutting edge end head 1 completely covers the cut tissue, so that the whole tissue is quickly cut and taken out; when the volume of the cut tissue is larger, the operation can be performed in a step-by-step cutting mode, the cutting process is fast, the efficiency is high, and the operation time is shortened.
As a preferred embodiment, the blade tip 1 comprises a number of blades 2, the blades 2 being of a sheet-like structure bulging towards the outside, the blades 3 being arranged on the blades 2. The blade 2 bulges outwards, the accommodating cavity is formed on the inner side of the blade 2, and the blade end 1 is light in weight due to the adoption of a sheet-shaped structure, so that the blade end 1 is further convenient to control.
As a preferred embodiment, the blades 3 are uniformly distributed in the circumferential direction. The good consistency can be ensured in the opening process of each blade 3, which is beneficial to the grasping and predicting of the position of the blade 3 of the surgeon.
In a preferred embodiment, when the blade tip 1 is in an open state, the blades 2 are spaced apart, and when the blade tip 1 is in a closed state, the blades 2 are connected to form the accommodating chamber.
As a preferred embodiment, when the blade edge head 1 is in the closed state, the blade 2 is surrounded by a spherical structure or a spherical crown structure, and the accommodating cavity is located inside the spherical structure or the spherical crown structure.
As another preferred embodiment, when the blade edge head 1 is in a closed state, the blade 2 is surrounded by an ellipsoidal structure or an ellipsoidal crown structure, and the accommodating cavity is located inside the ellipsoidal structure or the ellipsoidal crown structure.
In the scheme, a spherical structure or a spherical crown structure or an ellipsoidal crown structure is formed, the outer structure is smooth, surrounding tissues are prevented from being scratched in the process of entering the blade end 1, and meanwhile, the blade end 1 can be beneficial to prop open the tissues on the entering path, so that the surgical operation is further facilitated, and the surgical steps are simplified.
As another preferred embodiment, when the blade edge head 1 is in the closed state, the blade 2 is surrounded by a conical structure or a frustum-shaped structure, and the accommodating cavity is located inside the conical structure or the frustum-shaped structure. The blade 2 is in a conical structure or a frustum-shaped structure around, and due to the existence of an edge structure, a doctor can conveniently and reliably grasp the shape of the blade end 1, the tissue is prevented from being damaged due to the fact that the blade end 1 is twisted to pull the tissue in the operation process, and the edge of the blade end 1 can be used as a position reference.
As a preferred embodiment, the tapered structure of the blade tip 1 is a conical shape or a pyramid shape, and the frustum shape of the blade tip 1 is connected to the frustum shape or the pyramid shape.
As a preferred embodiment, the outer wall of the end of the blade tip 1 facing the tissue to be resected is in a cambered surface shape. The arc surface shape is that the outer wall of the end part is rounded, so that the outer end surface of the blade end head 1 is of a smooth transition structure, the blade end head 1 is beneficial to entering the tissue to be resected, and other tissues in a patient body are prevented from being scratched in the entering process. Through the mode of this scheme, the risk of blade end 1 fish tail other internal tissues of patient is further reduced, also further makes things convenient for blade end 1 struts internal tissues of patient and reaches the affected part.
As a preferred embodiment, the blade tip 1 is divided into the blades 2 along the direction of the generatrix.
As a preferred embodiment, the blade 2 is provided with a blade edge 3 along the direction of the generatrix of the blade edge head 1 on both sides of the generatrix of the blade edge head 1.
Through the mode, the blade 2 is switched towards the closed state, and the cutting action is that the blade end 1 is closed into the linear state that the blade 3 is gradually close to ensure the stable linearity of the tissue cutting process, so that the control of the operating doctor on the state of the operating process is facilitated.
As another preferred embodiment, the blade 2 is arranged along the side of the generatrix of the blade end 1, one side is a blade edge, the other side is a flange, the blade edge is provided with a blade edge 3 along the direction of the generatrix of the blade end 1, the flange is a flat side, and the blade edge of the blade 2 is opposite to the flange of the adjacent blade 2. In this way, the cutting of tissue is realized by the cooperation of the blade 3 and the side edge of the connected blade 2, so that the dislocation of the blade 3 and the blade 3 is avoided, and the good sealing effect of the blade end 1 is ensured.
As a further preferred solution, grooves 5 for matching with the respective corresponding blades 3 are provided on the flanges, and the blades 3 are located in the respective corresponding grooves 5 when the blade tips 1 are in the closed state. The arrangement of the grooves 5 further aspects the cutting action of the blade 3 and further ensures the sealing effect of the blade tip 1.
As a further preferred embodiment, the groove 5 is a V-shaped groove 5. When the blade 3 slides along the side wall of the V-shaped groove, the cutting separation effect can be realized more reliably, the flatness of the incision is further ensured, and the operation quality is improved.
As a preferred embodiment, an annular tool holder 6 is further disposed at the lower end of the blade 3, the tool holder 6 is made of flexible silica gel material, and the lower end of each blade 2 is embedded in the tool holder 6. The knife rest 6 is arranged, so that the knife edge end 1 formed by each knife edge 3 has good integrity, and meanwhile, reliable sealing fit with other structures is facilitated.
Example 2, as shown in figures 1-3,
the utility model provides a resectoscope for internal tissue excision, includes embodiment 1 arbitrary mode semi-open type cutting edge end 1, still includes pipe 4, the one end of pipe 4 is for being used for stretching into the internal stretching into the end of patient, and the other end is the outer operating end that is located the patient stretch into to be provided with cutting edge end 1 on the end, resectoscope still including being used for the drive cutting edge end 1 switches between open state and closed state operating part, operating part one end sets up the operating end of pipe 4, the other end with cutting edge end 1 cooperatees.
The resectoscope of this embodiment can be used independently when carrying out the tissue excision operation, also can adopt present conventional laparoscopic imaging system to carry out the cooperation and use, carry out the operation under laparoscopic imaging system assistance, during the operation, pipe 4 is gone into in patient's body by the struts passageway of patient's abdominal wall incision department, blade end 1 is pushed to the tissue department of wanting to excision by pipe 4, pipe 4 is the cavity pipe 4 that both ends are open, pipe 4 adopts medical silica gel material or hospital rubber material to make, pipe 4's material and mechanical properties can be the same as present conventional laparoscopic pipe 4, can be used for getting into the patient's body, and still have certain intensity and deformability, for example adopt the pipe 4 material of present conventional endoscope to make, the doctor makes blade end 1 be in the open state through the operating end control of operating part, then through pipe 4 adjustment blade end 1's position and angle, make each blade 3 be in the excision separation path that needs, then in the operating end control blade end 1 through operating part open, make blade end 1 have the state of wanting to cut off, in this tissue in the excision process. Due to the adoption of the blade end 1, the risk that cut tissues remain in a patient body is directly avoided when the tissues are resected; the operation risk is greatly reduced; in addition, the incision healing is facilitated, the subsequent operation operations such as hemostatic clamp application, tissue suturing and the like are facilitated, and the operation quality is improved; on the other hand, the assistant cleaning step is saved, and the risk of infection in the patient is reduced; in addition, the excision process is fast, the efficiency is high, and the operation time is shortened.
As a preferred embodiment, a first film sleeve 7 is also connected between the tool holder 6 and the outer wall of the operating element in a sealing manner, and a second film sleeve 8 is also connected between the operating element and the catheter 4 in a sealing manner.
The first film sleeve 7 and the second film sleeve 8 are made of medical resin films, and have an open hollow sleeve-shaped structure at two ends, so that the medical resin film has good sealing effect and deformability. By means of the first and second film sleeves 7, 8, a well-sealed channel is formed between the blade tip 1 and the catheter 4, further avoiding outflow of tissue fluid and blood from resected tissue and random falling of tissue fragments into the patient.
As a preferred embodiment, the blade 2 is fixedly connected with a hanging lug 10, a connecting rod 16 is connected with the middle part or the middle lower part of the hanging lug 10 through a pin shaft, the other end of the connecting rod 16 is connected with the guide pipe 4 through a pin shaft, the operation part comprises a push rod 15 and a push part 9 connected with the push rod 15, the push part 9 is connected with the lower end of the hanging lug 10 through a pin shaft, when the push rod 15 pushes the push part 9 to move towards the blade end 1, the blade end 1 is gradually opened, and when the push rod pulls the push part 9 to move towards the direction deviating from the blade end 1, the blade end 1 is gradually closed.
As a preferred embodiment, the hanging lugs 10 have an arc shape protruding outwards.
As a preferred embodiment, a plurality of notches 11 are provided in the pushing member 9. The pushing component 9 is provided with a notch 11, and other surgical instruments such as a minimally invasive surgical scissors and a minimally invasive camera system can enter the accommodating cavity through the catheter 4 to perform operation auxiliary work, so that operation convenience and safety are further improved.
As another preferred embodiment, the pushing member 9 has a ring-like structure. The pushing component 9 has a larger space by adopting the annular structure, thereby further facilitating the operation.
As a preferred embodiment, the push rod 15 is a deformable elongated rod structure. The strength of the push rod 15 ensures that the pushing member 9 can be pushed forward smoothly, and the push rod 15 also has a certain elasticity ensuring that sufficient bending deformation can be provided to push the blade tip 1 to the tissue portion to be resected.
As a preferred embodiment, a guide plate 12 is further arranged in the operation end of the catheter 4, and a plurality of through holes 13 are arranged on the guide plate 12, wherein the inner wall of one through hole 13 is in sliding fit with the push rod 15. By the arrangement of the guide plate 12, the push rod 15 at the operation end is supported, and interference between the push rod 15 and other equipment is reduced.
As a preferred embodiment, the position and shape of the through hole 13 on the guide plate 12 corresponds to the notch 11 on the pushing member 9. So set up, further convenient in fact the entering of operation equipment.
As a preferred embodiment, the resectoscope further comprises a sleeve 14, and the inner wall of the sleeve 14 is in clearance fit with the catheter 4 and the blade tip 1 in the closed state. The sleeve 14 is made of medical silica gel materials, the catheter 4 and the blade end 1 are arranged in the sleeve 14 during operation, enter an affected part together with the sleeve 14 from an abdominal incision of a patient, push the blade end 1 to a tissue to be resected through the catheter 4, control the resection action of the blade end 1 through the push rod 15, and clear the resected tissue in the blade end 1 out of the body by adopting other surgical equipment when the resection is completed or the single resection is completed when the resection is needed for a plurality of times, or the sleeve 14 is kept still, pull the catheter 4 out of the sleeve 14, and stretch the tissue in a containing cavity of the blade end 1 into the affected part for the next layer of cutting after the tissue in the containing cavity of the blade end 1 is cleared; after the tissue to be resected is resected, the catheter 4 and the blade tip 1 are taken out, other surgical instruments are adopted to perform the operation of the subsequent surgical steps, and finally the sleeve 14 is taken out.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. A resectoscope for internal tissue resection, characterized by: the surgical incision device comprises a semi-open type blade end head for cutting internal tissues, wherein the blade end head is provided with an open state and a closed state, a containing cavity is formed in the blade end head when the blade end head is in the closed state, the containing cavity is communicated with the inner space of a catheter of an internal tissue cutter, the blade end head further comprises a plurality of blades, and when the blade end head is switched from the open state to the closed state, the blades scratch through tissues to be cut in a patient body to realize the cutting of the tissues to be cut;
the blade end head comprises a plurality of blades, the blades are of a sheet-shaped structure protruding towards the outside, and the blades are arranged on the blades;
the lower end of the cutting edge is also provided with an annular cutter holder,
the resectoscope for internal tissue resection further comprises a catheter, one end of the catheter is an extending end used for extending into a patient, the other end of the catheter is an operating end located outside the patient, a blade end is arranged on the extending end, the resectoscope further comprises an operating part used for driving the blade end to switch between an open state and a closed state, one end of the operating part is arranged at the operating end of the catheter, the other end of the operating part is matched with the blade end, a first film sleeve is also hermetically connected between the cutter holder and the outer wall of the operating part, a second film sleeve is also hermetically connected between the operating part and the catheter, a hanging lug is fixedly connected to the blade, a connecting rod is connected to a middle part or a middle lower part pin shaft on the hanging lug, the other end of the connecting rod is connected with the catheter pin shaft, the operating part comprises a push rod and a pushing part connected with the push rod, the push part is connected with the lower end pin shaft of the hanging lug, when the push rod pushes the push part moves towards the blade end, the blade end gradually pushes the blade end to the push rod, a plurality of guide plates are arranged in the shape of the cut-off way, the push rod gradually moves towards the inner wall of the blade end, a plurality of guide plates are arranged at least one of the guide sleeve, a plurality of through holes are arranged in the shape of the cut-off holes are matched with the shape of the guide plates, and the cut-off at least one of the guide plates are gradually arranged at the corresponding to the shape of the blade end, and the cut end is gradually matched with the cut end to the blade end is provided with the corresponding to the guide plate, and the guide plate is provided with a guide hole, and the guide plate is gradually has a corresponding push hole, and the guide blade can move along the blade can move, the inner wall of the sleeve is in clearance fit with the catheter and the blade end in a closed state.
2. The resectoscope for internal tissue resection of claim 1, wherein: the blades are uniformly distributed in the circumferential direction.
3. The resectoscope for internal tissue resection of claim 2, wherein: when the blade ends are in an open state, the blades are separated from each other, and when the blade ends are in a closed state, the blades are connected to form the accommodating cavity.
4. A resectoscope for internal tissue resection according to claim 3, wherein: when the end head of the cutting edge is in a closed state, the blade is surrounded to form a spherical structure or a spherical crown structure, and the accommodating cavity is positioned in the spherical structure or the spherical crown structure;
or when the end head of the blade is in a closed state, the blade is surrounded by an ellipsoidal structure or an ellipsoidal crown structure, and the accommodating cavity is positioned in the ellipsoidal structure or the ellipsoidal crown structure;
or when the blade end is in a closed state, the blade is surrounded to be in a conical structure or a frustum-shaped structure, and the accommodating cavity is positioned in the conical structure or the frustum-shaped structure.
5. The resectoscope for internal tissue resection of claim 4, wherein: and the blade ends are divided along the direction of the generatrix to form the blades.
6. The resectoscope for internal tissue resection of claim 5, wherein: and the side edges of the blades along the generatrix of the blade ends are provided with blades along the direction of the generatrix of the blade ends.
7. The resectoscope for internal tissue resection of claim 6, wherein: the blade is along the side of blade end generating line, and one of them side is the edge, and another curb plate is the flange, be provided with on the edge along the edge of blade end generating line direction, the flange is smooth side, the edge of blade is relative with the flange of adjacent blade be provided with on the flange be used for with each corresponding the blade matched with recess, when the blade end is closed, the blade is located each corresponding in the recess, the recess is V type recess, the blade holder adopts flexible silica gel material to make, each the lower extreme embedding of blade is in the blade holder.
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| CN201911049684.3A CN110680465B (en) | 2019-10-31 | 2019-10-31 | Semi-open and close type blade end for internal tissue excision |
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| CN201911049684.3A CN110680465B (en) | 2019-10-31 | 2019-10-31 | Semi-open and close type blade end for internal tissue excision |
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| CN2602608Y (en) * | 2003-01-23 | 2004-02-11 | 李成蛟 | Foods quantitative dividing device |
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| CN203226868U (en) * | 2013-05-14 | 2013-10-09 | 李现民 | Tumor exsector |
| CN211460406U (en) * | 2019-10-31 | 2020-09-11 | 四川省人民医院 | Semi-open blade tip and resectoscope for internal tissue resection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5776075A (en) * | 1996-08-09 | 1998-07-07 | Symbiosis Corporation | Endoscopic bioptome jaw assembly having three or more jaws and an endoscopic instrument incorporating same |
| CN2602608Y (en) * | 2003-01-23 | 2004-02-11 | 李成蛟 | Foods quantitative dividing device |
| CN102256554A (en) * | 2008-10-20 | 2011-11-23 | 脊柱诊察公司 | Retractor cannula system for accessing and visualizing spine and related methods |
| CN203226868U (en) * | 2013-05-14 | 2013-10-09 | 李现民 | Tumor exsector |
| CN211460406U (en) * | 2019-10-31 | 2020-09-11 | 四川省人民医院 | Semi-open blade tip and resectoscope for internal tissue resection |
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| CN110680465A (en) | 2020-01-14 |
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