CN105852942B - fixed knot constructs and has its medical load handling device - Google Patents
fixed knot constructs and has its medical load handling device Download PDFInfo
- Publication number
- CN105852942B CN105852942B CN201610205206.7A CN201610205206A CN105852942B CN 105852942 B CN105852942 B CN 105852942B CN 201610205206 A CN201610205206 A CN 201610205206A CN 105852942 B CN105852942 B CN 105852942B
- Authority
- CN
- China
- Prior art keywords
- fixing element
- positioning
- mounting
- fixing
- support frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00287—Bags for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00358—Snares for grasping
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
Abstract
The invention discloses a fixing structure and a medical fetching device with the same, the fixing structure is used for fixing a first part and a second part and comprises: a first fixing element and a second fixing element; wherein the first fixing element is connected to or integrally formed with the first part; the first and/or second fixing element is provided with a structure to accommodate a second component; the first fixing element and the second fixing element are in interference fit or transition fit, and fixed connection between the first component and the second component is achieved. According to the fixing structure and the medical fetching device with the same, the process is simple, the structure is reliable, the fixing structure is easy to install, and the operation and the use are convenient; can effectively prevent the second part from separating from the first part, quickly obtain the specimen, reduce the pain of a patient, shorten the operation time and improve the operation efficiency.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a fixing structure and a medical fetching device with the same.
Background
In laparoscopic surgery, how to safely and thoroughly remove surgical excision and residues is always a key point and a difficult point, which is not only directly related to success or failure of the whole laparoscopic surgery, but also related to postoperative rehabilitation of patients. For a long time, the domestic laparoscopic surgery has no medical tool specially for taking out the resection objects, and a hospital for carrying out the laparoscopic surgery can only use homemade gloves or homemade plastic bags to complete the critical step after processing and disinfection. Such homemade gloves or homemade plastic bags are cumbersome in manufacturing steps, and it is difficult to ensure that surgical excision and residues are completely and thoroughly taken out, so that there is a great risk of infection, inconvenience is brought to the surgical operator, and potential risk is also brought to the patient.
Medical load handling device develops to laparoscopic surgery's operation demand specially, can once only take out operation excision thing (like malignant tumor, cystic nature, pustule excision thing and tissues such as endometrium), effectively prevent pathological change tissue and healthy tissue contact, avoid pathology to remain, can not only make things convenient for doctor's operation greatly, reduce the operation degree of difficulty, save the operating time, improve operation efficiency, be favorable to patient's postoperative rehabilitation moreover, reduce patient's postoperative infection risk, save a large amount of recessive treatment expenses for the patient. In the prior art, the second component of the fixing structure is generally fixed on the first component by means of adhesive bonding, elastic deformation connection, point riveting, and the like. When the size of the specimen to be excised is large, the specimen is cut off and put into the bag body, the handle is pulled outwards, and the open end of the bag body is put into the outer sleeve, so that the situation that the specimen and the bag body are difficult to take out of the abdominal cavity of a patient due to large pulling force can be easily caused, the operation time is long, and a great deal of inconvenience is brought to doctors and patients.
Disclosure of Invention
aiming at the defects of the prior art, the invention aims to provide a fixing structure and a medical fetching device with the same, wherein the fixing structure is reasonable in structural design, high in strength, reliable in structure, simple in process and easy to process and operate, and the medical fetching device is realized through the following technical scheme:
A fixing structure for fixing a first member with a second member, comprising: a first fixing element and a second fixing element; wherein the first fixing element is connected to or integrally formed with the first part; the first and/or second fixing element is provided with a structure to accommodate a second component; the first fixing element and the second fixing element are in interference fit or transition fit and press-fix the second component between the first fixing element and the second fixing element, so that the first component and the second component are fixedly connected, at least one groove is formed in both the first fixing element (31) and the second fixing element (32), or at least one groove is formed in one of the first fixing element and the second fixing element, the at least one groove is used for accommodating one end of the second component (2), and mutually-matched positioning structures are respectively arranged in the groove of the first fixing element (31) and/or the second fixing element (32) and one end of the second component (2).
One of the first fixing element and the second fixing element is provided with a mounting column, and the other fixing element is provided with a mounting hole; or, the first fixing element is simultaneously provided with mounting columns and mounting holes, and the second fixing element is simultaneously provided with mounting holes and mounting columns, the number of which corresponds to that of the first fixing element.
The second fixing element is provided with a mounting column, and the first fixing element is provided with a mounting hole; and the second fixing element is provided with at least two mounting columns, and the first fixing element is provided with at least two mounting holes.
The second fixing element is provided with four mounting columns, the first fixing element is provided with four mounting holes, and the four mounting columns correspond to the four mounting holes one to one.
The four mounting posts are distributed on the second fixing element in a T shape, and the four mounting holes are distributed on the first fixing element in a T shape.
The cross section of the mounting column is circular, and the cross section of the mounting hole is polygonal.
The cross section of the mounting hole is in a regular hexagon shape.
The first fixing element is provided with a first groove and a second groove, and the second fixing element is provided with a third groove and a fourth groove.
And the first groove and one end of the second component are respectively provided with a positioning structure which is matched with each other.
The positioning structure in the first groove is at least one positioning rib, and the positioning structure at one end of the second component is at least one positioning groove.
Two positioning ribs are arranged in the first groove, and two positioning grooves are formed in one end of the second component.
The two positioning grooves are arranged at intervals at one end of the second component, and the distance between the two positioning grooves is greater than or equal to the length of one positioning groove; the positions of the two positioning ribs on the first fixing element correspond to the positions of the two positioning grooves one by one.
The cross-sectional shapes of the positioning ribs and the positioning grooves are both open rectangles, open trapezoids or U-shapes.
The first groove and the third groove are both linear, and the second groove and the fourth groove are both curved.
The positioning structure comprises positioning ribs and positioning grooves.
The second part comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically arranged, and the first support frame and the second support frame are fixedly connected or integrally formed; the front section of the second component is a collection of the front section of the first support frame and the front section of the second support frame, and the rear section of the second component is a collection of the rear section of the first support frame and the rear section of the second support frame.
The invention also provides a medical fetching device which comprises the fixing structure.
the fixing structure and the medical fetching device with the same can effectively prevent the second component from being separated from the first component, quickly obtain a specimen, reduce the pain of a patient, shorten the operation time and improve the operation efficiency.
drawings
FIG. 1 is an exploded view of a first component of a fixation arrangement according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 at A;
FIG. 3 is a schematic view of a second component of the fixation arrangement according to an embodiment of the invention;
FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 3;
Fig. 5 is an axial sectional view along a first groove of a fixing structure according to an embodiment of the present invention, in which a second member is engaged with a first member, with parts omitted for clarity of illustration of the assembled relationship;
FIG. 6 is an enlarged view of a portion of the structure of FIG. 5 at C;
FIG. 7 is a state view of the medical retrieval device according to an embodiment of the present invention before use;
FIG. 8 is a state diagram of a medical retrieval device in use, according to an embodiment of the present invention;
FIG. 9 is an exploded view of a medical retrieval device in accordance with an embodiment of the present invention;
Fig. 10 is a view of the arrangement of the bag mouth cinch lines on the first component, with portions omitted for clarity of illustration of the assembled relationship, in accordance with an embodiment of the present invention.
Reference numerals:
The medical fetching device 100, the bag body 1, the second component 2, the first support frame 21, the second support frame 22, the first component 3, the first fixing element 31, the second fixing element 32, the outer sleeve 4, the handle 5, the bag mouth tightening line 6, the screw 7 and the handle 8.
Detailed Description
a fixing structure and a medical fetching device 100 having the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The following described embodiments are exemplary and are intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 6, a fixing structure according to an embodiment of the present invention includes a core bar assembly 3 (i.e., a first member), a supporting mechanism 2 (i.e., a second member); the second component 2 comprises a first support 21, a second support 22, and the core assembly 3 comprises a core 33. As shown in fig. 1, the core rod assembly 3 includes a core rod 33, a first fixing element 31 is disposed at a proximal end of the core rod assembly 3, the first fixing element 31 is connected to or integrally formed with the core rod 33, and a second fixing element 32 is matched with the first fixing element 31 to fix the mounting fixing end 23 of the supporting mechanism 2; further, the first fixing element 31 and the second fixing element 32 of the core rod assembly 3 are connected in an interference fit or transition fit manner. Referring to fig. 1 to 2, one of the first fixing element 31 and the second fixing element 32 is provided with a mounting post, and the other is provided with a mounting hole; alternatively, the first fixing element 31 is provided with mounting posts and mounting holes, and the second fixing element 32 is provided with corresponding mounting holes and mounting posts.
Preferably, in the present embodiment, the first fixing member 31 is provided with a mounting hole, and the second fixing member 32 is provided with a mounting post. The second fixing element 32 is provided with at least two mounting posts, and the first fixing element 31 is provided with at least two mounting holes. In order to facilitate assembly and achieve a better fixing effect, preferably, the number of the mounting holes on the first fixing element 31 is four, correspondingly, the number of the mounting posts on the second fixing element 32 is four, and the four mounting posts correspond to the four mounting holes one by one; the four mounting holes of the first fixing element 31 are identical in size and shape, and the four mounting posts of the second fixing element 32 are identical in size and shape.
The four mounting holes on one end of the first fixing element 31 of the core rod assembly 3 are connected with the four mounting columns on the second fixing element 32 in an interference fit or transition fit mode. The four mounting holes on the first fixing element 31 are identical in size and shape, the four mounting columns on the second fixing element 32 are identical in size and shape, and the upper limit size of each mounting hole is smaller than or equal to the lower limit size of each mounting column, namely, the mounting holes are in interference fit; or the upper limit size of the mounting hole is larger than the lower limit size of the mounting column, and the lower limit size of the mounting hole is smaller than the upper limit size of the mounting column, namely transition fit. The first mounting hole 311 and the first mounting post 321, the second mounting hole 312 and the second mounting post 322, the third mounting hole 313 and the third mounting post 323, and the fourth mounting hole 314 and the fourth mounting post 324 are matched in a one-to-one correspondence manner.
Preferably, the cross sections of the first mounting post 321, the second mounting post 322, the third mounting post 323 and the fourth mounting post 324 are all circular, and the cross sections of the first mounting hole 311, the second mounting hole 312, the third mounting hole 313 and the fourth mounting hole 314 are all polygonal. If the cross sections of the mounting post and the mounting hole are circular, the mounting hole and the mounting post are in surface-to-surface contact during assembly, and the first fixing element 31 and the second fixing element 32 can be matched with each other only by adopting manual hammering, press pressing, cold mounting or hot mounting during interference or transition fit. In order to overcome the assembly difficulty, the cross section of the mounting column in the medical fetching device is circular, the cross section of the mounting hole is polygonal, and preferably, in the embodiment, the cross section of the mounting hole is regular hexagon; therefore, when the first fixing element 31 and the second fixing element 32 are in interference fit or transition fit, the mounting holes and the mounting columns are in tangential contact of the plane and the circumferential surface, the mounting reliability requirement can be met by properly adjusting the interference magnitude, the assembly can be carried out manually at normal temperature without other tools, and the assembly process is simple and convenient to assemble.
the four mounting holes are distributed on the first fixing element 31 in a substantially T shape, that is, the third mounting hole 313 and the fourth mounting hole 314 are arranged on the first fixing element 31 along the axial direction, the first mounting hole 311 and the second mounting hole 312 are respectively located at two sides of the second groove 316, and the central connecting line of the first mounting hole 311 and the second mounting hole 312 is perpendicular to the central connecting line of the third mounting hole 313 and the fourth mounting hole 314; correspondingly, the four mounting posts are distributed on the second fixing element 32 in a substantially "T" shape, that is, the third mounting post 323 and the fourth mounting post 324 are arranged on the second fixing element 32 along the axial direction, the first mounting post 321 and the second mounting post 322 are respectively located at two sides of the fourth groove 326, and the central connecting line of the first mounting post 321 and the second mounting post 322 is perpendicular to the central connecting line of the third mounting post 323 and the fourth mounting post 324. Thus, the interference fit or transition fit of the first mounting hole 311 and the first mounting post 321, and the interference fit or transition fit of the second mounting hole 312 and the second mounting post 322 can effectively prevent the second fixing element 32 from moving on the first fixing element 31 along the radial direction of the core rod assembly 3; the interference fit or transition fit of the third mounting hole 313 and the third mounting post 323 and the interference fit or transition fit of the fourth mounting hole 314 and the fourth mounting post 324 can effectively prevent the second fixing element 32 from moving on the first fixing element 31 along the axial direction of the core rod assembly 3, so as to effectively extrude and fix the other end 23 (i.e. the mounting fixed end) of the supporting mechanism 2, and further fix the supporting mechanism 2, and the best fixing effect is achieved by fewer mounting posts and mounting holes.
It should be noted that, the layout of the mounting holes and the mounting posts on the first fixing element 31 and the second fixing element 32 may also be that X mounting posts are arranged on the first fixing element 31; correspondingly, the second fixing element 32 is provided with X mounting holes (wherein X is greater than or equal to 2); or the first fixing element 31 is provided with N mounting posts and M mounting holes, and correspondingly, the second fixing element 32 is provided with N mounting holes and M mounting posts (where N is greater than or equal to 1, and M is greater than or equal to 1). The size, the shape and the number of the mounting columns and the mounting holes can be changed as required, and the layout of the mounting columns and the mounting holes on the second fixing element and the first fixing element can be changed as required so as to meet the requirements of the bonding strength and the firmness of two matched parts. The present embodiments are exemplary, are intended to be illustrative of the invention, and are not to be construed as limiting the invention.
Referring to fig. 1 to 2, the core rod assembly 3 is further provided with at least one groove, and the groove is provided on the first fixing element 31 and/or the second fixing element 32. Including but not limited to the following: the first fixing element 31 is provided with at least one groove; the second fixing element 32 is provided with at least one groove; at least one recess is provided on each of the first fixing element 31 and the second fixing element 32. In the present embodiment, preferably, two grooves are provided on each of the first fixing element 31 and the second fixing element 32. The first fixing element 31 is provided with a first groove 315 and a second groove 316, and the second fixing element 32 is provided with a third groove 325 and a fourth groove 326. The first groove 315 and the third groove 325 are both linear, and the groove widths of the first groove 315 and the third groove 325 are equal to each other and form a fixing groove of the support mechanism 2; the lines of the second groove 316 and the fourth groove 326 are both curved, and the second groove 316 and the fourth groove 326 have the same groove width and together form a channel of the pocket mouth tightening line 6.
The core bar component 3 can extend into the outer sleeve 4, and the core bar component 3 and the supporting mechanism 2 are respectively provided with a positioning and mounting structure which is matched with each other; preferably, the positioning and mounting structure is a positioning rib and a positioning groove. Furthermore, at least one positioning rib is arranged on the core rod assembly 3, and at least one positioning groove is arranged on the supporting mechanism 2. In this embodiment, the core bar assembly 3 is provided with two positioning ribs, and the supporting mechanism 2 is provided with two positioning grooves.
The supporting mechanism 2 comprises a first supporting frame 21 and a second supporting frame 22, wherein the first supporting frame 21 and the second supporting frame 22 are in a bilateral arc shape, and the orthographic projections of the first supporting frame and the second supporting frame are rectangular. The far end of the first support frame 21 and the far end of the second support frame 22 are combined into an installation fixing end 23, the first support frame 21 and the second support frame 22 are symmetrically arranged along the installation fixing end 23 and the extension line thereof, and the first support frame 21 and the second support frame 22 of the support mechanism 2 can be integrally formed or can be two elements which are independently arranged. When the open end 11 of the receptacle 1 is tightened, the proximal end 211 of the first support 21 abuts the proximal end 221 of the second support 22. When the open end 11 of the receptacle 1 is unfolded, the proximal end 211 of the first support 21 is separated from the proximal end 221 of the second support 22.
As shown in fig. 3 to 4, the mounting-fixing end 23 of the supporting mechanism 2 is provided with at least one positioning groove. In the present embodiment, the mounting fixing end 23 of the supporting mechanism 2 is provided with two positioning grooves: a first positioning groove 231 and a second positioning groove 232. The two positioning grooves have the same size and shape, and the cross-sectional shapes of the first positioning groove 231 and the second positioning groove 232 are both open rectangles, open trapezoids or U-shapes. The thickness of the positioning groove is equal to that of the installation fixed end 23 of the supporting mechanism 2; in the present embodiment, the thickness of the supporting mechanism 2 is preferably 0.5mm, and correspondingly, the thickness of the positioning slot is 0.5 mm. The depth of the positioning groove is less than or equal to half of the width of the supporting mechanism 2; if the depth of the positioning groove is too large, the width of the supporting mechanism 2 directly above the positioning groove is small, the strength is weak, and the tensile strength cannot be satisfied (for example, the width of the supporting mechanism 2 is preferably 3mm, and the depths of the first positioning groove 231 and the second positioning groove 232 are both 1.5 mm). The length of the positioning groove is more than or equal to one time of the depth of the positioning groove, and the two positioning grooves correspond to the two positioning ribs one by one; if the length undersize of constant head tank, correspondingly, the length of location muscle is less, and consequently the intensity of location muscle is weak, uses during the medical fetching device, the location muscle has cracked risk, causes supporting mechanism 2 to break away from core bar subassembly 3, makes sample and bag body 1 be difficult to take out patient's abdominal cavity, brings a great deal of inconvenience for doctor and patient (for example, the length of first constant head tank 231, second constant head tank 232 is 3 mm). As shown in fig. 4, the first positioning slot 231 and the second positioning slot 232 are spaced apart from each other at the fixed end 23 of the supporting mechanism 2, and the distance between the two positioning slots is greater than or equal to one positioning slot length (for example, 3mm is spaced between the first positioning slot 231 and the second positioning slot 232). The medical fetching device has the advantages of reasonable structural design, high strength, reliable structure, simple process and easy processing and operation.
Preferably, the material of the supporting mechanism 2 is nitinol, and in this embodiment, the thickness of the supporting mechanism 2 is preferably 0.5mm, and correspondingly, the thickness of the positioning groove is 0.5 mm. Can automatically form bilateral arcs when unfolded, and can enable the bag body to be in an open state without the assistance of additional instruments. The mounting and fixing end 23 formed by the superposition of the distal end of the first support frame 21 and the distal end of the second support frame 22 is fixedly mounted in the first groove 315 of the first fixing element 31 of the core rod assembly 3. The distal ends of the first support 21 and the second support 22 may also be offset and spaced apart to be disposed in two recesses of the core assembly 3.
It should be noted that the first support frame 21 and the second support frame 22 of the support mechanism 2 may be integrated, or may be two separately provided components. In addition, three grooves can be respectively arranged on the first fixing element 31 and/or the second fixing element 32, the first support frame 21 and the second support frame 22 are respectively arranged in two grooves of the first fixing element 31 and/or the second fixing element 32, and the other groove is used for forming a channel of the bag mouth tightening line 6. Overlapping means secured to each other or integrally formed.
As shown in fig. 5 to 6, at least one positioning rib is disposed in the first groove 315 of the first fixing element 31, and in this embodiment, two positioning ribs are disposed in the first groove 315: the first positioning rib 3151 and the second positioning rib 3152 are rectangular parallelepiped or open trapezoidal or U-shaped protrusions. As shown in fig. 6, the height of the projection is equal to or less than the depth of the detent groove. The first positioning rib 3151 and the second positioning rib 3152 are arranged in the first groove 315 at intervals, and the distance between the two protrusions is greater than or equal to the length of one protrusion. The first positioning rib 3151 and the second positioning rib 3152 have sizes and shapes corresponding to the first positioning groove 231 and the second positioning groove 232 of the mounting end 23 of the supporting mechanism 2. Therefore, the mounting and fixing end 23 of the supporting mechanism 2 is mounted and fixed in the groove 315 of the first fixing element 31, and the positioning rib in the groove 315 of the first fixing element 31 is fixed in cooperation with the positioning groove of the supporting mechanism 2, that is, the first positioning groove 231 is fixed in cooperation with the first positioning rib 3151, and the second positioning groove 232 is fixed in cooperation with the second positioning rib 3152. On one hand, the first positioning groove 231 and the second positioning groove 232 are respectively matched and fixed with the first positioning rib 3151 and the second positioning rib 3152 in the groove 315, and on the other hand, the first fixing element 31 is matched and connected with the second fixing element 32 and presses and fixes the installation fixing end 23 of the supporting mechanism 2 between the first fixing element and the second fixing element, and on any one of the two aspects, the fixed connection between the supporting mechanism 2 and the core rod assembly 3 can be realized. The two aspects are combined, and the fixing effect is better.
As shown in fig. 7 to 9, the medical fetching device 100 according to the embodiment of the present invention includes a bag body 1, a supporting mechanism 2, a core bar assembly 3, an outer sleeve 4, a handle 5, a bag mouth tightening line 6, a screw 7, and a handle 8; the supporting mechanism 2 comprises a first supporting frame 21 and a second supporting frame 22, the core bar assembly 3 comprises a core bar, a first fixing element 31 and a second fixing element 32, and the handle 5 comprises an upper half part 51 and a lower half part 52.
As shown in fig. 8, the bag body 1 has an open end 11 and a closed end 12, the material of the inner wall of the bag body 1 is preferably TPU (i.e. thermoplastic polyurethane), the edge of the open end 11 of the bag body 1 is folded into two layers into the bag body 1 and then is heat-sealed to form a non-closed annular channel 111, one end of the bag mouth tightening line 6 penetrates through the non-closed part of the non-closed annular channel 111 and penetrates out of the other non-closed part of the non-closed annular channel 111, and a fisher knot 61 (as shown in fig. 10) is formed at the non-closed part of the annular channel and the other end of the bag mouth tightening line 6; one end 211, 221 of the support mechanism 2 respectively penetrates into the non-closed annular channel 111 from two non-closed positions of the non-closed annular channel 111. Because the bag body 1 enters the abdominal cavity, the outer wall of the bag body 1 needs to be in contact with body fluid and has the characteristics of water resistance, moisture resistance, oxidation deterioration resistance and the like, the medical nylon coated cloth is preferably selected as the material of the outer wall of the bag body 1.
As shown in fig. 10, the edges of the open end 11 of the receptacle 1 are folded inwardly to form a non-closed loop, into which one end of the support mechanism 2 (i.e., the proximal end 211 of the first support 21 and the proximal end 221 of the second support 22) and a portion of the bag mouth fastening line 6 are threaded. The first part is also provided with a limiting groove and a fixing hole of the bag mouth tightening line 6, the limiting groove is arranged along the axial direction of the core rod component 3 and is positioned on the back of the core rod. One end of the pocket tightening line 6 penetrates out of the unclosed annular channel, a fisherman knot 61 is formed at the unclosed part of the annular channel and the pocket tightening line 6, the pocket tightening line 6 penetrates through the first fixing hole 34 and enters the limiting groove at the back of the core bar to be arranged at the far end of the first part through a channel formed by the second groove 316 on the first fixing element 31 and the fourth groove 326 on the second fixing element 32, then penetrates through the second fixing hole 35, a slip knot 62 is formed at the position, and the tail end 63 of the pocket tightening line 6 penetrates through the third fixing hole 36.
The mandrel assembly 3 extends into and is located within the outer sleeve 4 and is axially movable within the outer sleeve 4. The other end of the core bar is provided with a handle 8, and the handle 8 is fixedly connected on the core bar through a screw 7. Two first positioning holes (not marked in the figure) are arranged on the outer sleeve 4, a handle 5 is also arranged outside the outer sleeve 4, and the handle 5 is of a symmetrical structure and is provided with a left annular hole and a right annular hole. The handle 5 is divided into an upper half 51 and a lower half 52. The upper half part 51 and the lower half part 52 are provided with first positioning columns, and the first positioning column of the lower half part 52 and the first positioning column of the upper half part 51 are inserted into the positioning hole of the outer sleeve 4 to be matched and connected, so that the outer sleeve 4 is fixed between the lower half part 52 and the upper half part 51. The lower half 52 further has a second positioning column, the upper half 51 has a second positioning hole, and the second positioning column of the lower half 52 is inserted into the second positioning hole of the upper half 51 and connected in an interference fit manner. The number of the first positioning columns and the first positioning holes, and the number of the second positioning columns and the second positioning holes are determined according to the requirement for the bonding strength and firmness of the two matched parts.
In this embodiment, before use, the support mechanism 2 of the medical object-taking device 100 is in a flattened state, the bag body 1 is folded and contracted from the closed end 12 to the open end 11, and the support mechanism 2, the bag body 1, the bag-mouth fastening line 6 and a part of the first member are accommodated in the outer tube 4. When the medical fetching device 100 is used, the medical fetching device enters the abdominal cavity of a patient through the puncture outfit, a doctor holds the handle 5 on the outer sleeve 4 with one hand, places a thumb and a forefinger into the left annular hole and the right annular hole respectively, and pushes the core rod assembly 3 forwards through the handle 8 with the other hand. After the supporting mechanism 2 is completely pushed out of the outer sleeve 4, the supporting mechanism 2 returns to the original state and props open the open end 11 of the bag body 1, the lap of the bag body 1 is slowly loosened, and then the bag body 1 is completely unfolded. Preferably, the supporting mechanism 2 is made of nickel titanium shape memory alloy, and can automatically form a bilateral arc shape when unfolded, so that the bag body 1 can be in an open state without the assistance of additional instruments.
An observation instrument or an endoscope is placed in the abdominal cavity of the patient in advance, and a doctor can recognize and cut off the specimen by observing the display, and then obtains the specimen by using the medical fetching device 100, wherein the specimen is positioned in the bag body 1. The doctor holds handle 5 on outer tube 4 in one hand, put into left and right annular ring with thumb and forefinger respectively, and another hand passes through handle 8 and pulls core bar subassembly 3 backward, and the installation stiff end 23 of supporting mechanism 2 is earlier taken in outer tube 4, and supporting mechanism 2 is along its two side arc structures, can be taken in outer tube 4 completely, and the sack is tightened up line 6 and is slowly strained simultaneously to tighten up open end 11 of the bag body 1, and then the closed bag body 1, take out the sample from the patient abdominal cavity. Because the first positioning groove 231 and the second positioning groove 232 of the supporting mechanism 2 and the two positioning ribs in the groove 315 of the first fixing element 31: the first positioning rib 3151 and the second positioning rib 3152 are fixed in a matching manner, and the mounting hole formed in the first fixing element 31 is in interference fit or transition fit with the mounting post formed in the second fixing element 32, so that the structure is reliable, and the support mechanism 2 cannot be separated from the core rod assembly 3.
according to the size of the specimen or the operation requirement, the doctor can take the medical fetching device 100 and the puncture outfit out of the incision of the abdominal cavity without unfastening the slipknot 62 at the other end of the bag mouth tightening line 6; or the slipknot 62 of the knot is firstly opened, the knot is released, the parts of the medical fetching device 100 except the bag body 1 and the bag opening tightening line 6 are taken away, and then the bag body 1, the bag opening tightening line 6 and the puncture outfit are tightened and taken out from the incision of the abdominal cavity together; or the slipknot 62 of the knot is firstly opened, the knot is released, the medical fetching device 100 except the bag body 1 and the bag opening tightening line 6 and the puncture outfit are taken away, then the opening end 11 of the bag body 1 is tightened through the fisherman knot 61 of the bag opening tightening line 6, and then the bag opening tightening line 6 is tightened to take the bag body 1 out of the abdominal cavity incision. When the specimen is large and is difficult to take out, the specimen can be firstly cut into a plurality of small blocks or properly flared in the bag body 1.
In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "proximal", "distal", "inner", "outer", "axial", "radial", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "engaged," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (16)
1. A fixing structure for fixing a first member (3) to a second member (2), comprising:
A first fixing element (31) and a second fixing element (32); wherein the first fixing element (31) is connected to or integrally formed with the first component (3);
the first fixing element (31) and/or the second fixing element (32) being provided with a structure housing a second component (2);
The first fixing element (31) and the second fixing element (32) are in interference fit or transition fit and press-fix the second component (2) therebetween, so that the first component (3) and the second component (2) are fixedly connected, at least one recess is provided on both the first fixing element (31) and the second fixing element (32), or one of the elements is provided with at least one recess for receiving one end of the second component (2), the first fixing element (31) and/or the second fixing element (32) are/is provided with a groove and one end of the second component (2) with mutually matched positioning structures, the positioning structure comprises positioning ribs and positioning grooves, and the positioning ribs correspond to the positioning grooves in size and shape one to one.
2. The fixing structure according to claim 1, wherein one of the first fixing element (31) and the second fixing element (32) is provided with a mounting post, and the other is provided with a mounting hole; or, the first fixing element (31) is simultaneously provided with mounting columns and mounting holes, and the second fixing element (32) is simultaneously provided with mounting holes and mounting columns, the number of which corresponds to the number of the mounting columns and the number of the mounting holes of the first fixing element (31).
3. The fixing structure according to claim 2, wherein the second fixing member (32) is provided with a mounting post, and the first fixing member (31) is provided with a mounting hole; and the second fixing element (32) is provided with at least two mounting columns, and the first fixing element (31) is provided with at least two mounting holes.
4. A fixation arrangement as claimed in claim 3, characterized in that the second fixation element (32) is provided with four mounting posts (321, 322, 323, 324), the first fixation element (31) is provided with four mounting holes (311, 312, 313, 314), and the four mounting posts (321, 322, 323, 324) correspond one-to-one with the four mounting holes (311, 312, 313, 314).
5. A fixation arrangement as claimed in claim 4, characterized in that the four mounting posts (321, 322, 323, 324) are arranged substantially "T" shaped on the second fixation element (32) and the four mounting holes (311, 312, 313, 314) are arranged substantially "T" shaped on the first fixation element (31).
6. the fixation structure according to any one of claims 2 to 5, wherein the mounting post has a circular cross-section and the mounting hole has a polygonal cross-section.
7. The fixation structure according to claim 6, wherein the cross-section of the mounting hole is a regular hexagon.
8. The fastening structure according to claim 1, wherein the first fastening element (31) is provided with a first recess (315) and a second recess (316), and the second fastening element (32) is provided with a third recess (325) and a fourth recess (326).
9. A fixation arrangement as claimed in claim 8, characterized in that the first recess (315) and the second component (2) are provided with mutually cooperating positioning structures, respectively.
10. a fixation arrangement as claimed in claim 9, characterized in that the positioning structure in the first recess (315) is at least one positioning rib and the positioning structure at the end of the second part (2) is at least one positioning slot.
11. A fixation arrangement as claimed in claim 10, characterized in that two positioning ribs (3151, 3152) are provided in the first recess (315), and that the one end of the second part (2) is provided with two positioning grooves (231, 232).
12. a fixation arrangement as claimed in claim 11, characterized in that the two positioning slots (231, 232) are spaced apart on one end of the second part (2), and the two positioning slots (231, 232) are spaced apart by a distance greater than or equal to the length of one of the positioning slots; the positions of the two positioning ribs (3151, 3152) on the first fixing element (31) correspond to the positions of the two positioning grooves one by one.
13. The fixing structure according to claim 10 or 11, wherein the positioning rib and the positioning groove each have an open rectangular shape, an open trapezoidal shape, or a U-shape in cross section.
14. The fixation structure of claim 8, wherein the first (315) and third (325) grooves are linear, and the second (316) and fourth (326) grooves are curvilinear.
15. The fixing structure according to claim 1, characterized in that the second component (2) comprises a first support frame (21) and a second support frame (22), the first support frame and the second support frame are symmetrically arranged, and the first support frame (21) and the second support frame (22) are fixedly connected or integrally formed; the front section of the second part (2) is the collection of the front section of the first support frame (21) and the front section of the second support frame (22), and the rear section of the second part (2) is the collection of the rear section of the first support frame (21) and the rear section of the second support frame (22).
16. A medical retrieval device comprising the fixation structure of any one of claims 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205206.7A CN105852942B (en) | 2016-04-05 | 2016-04-05 | fixed knot constructs and has its medical load handling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205206.7A CN105852942B (en) | 2016-04-05 | 2016-04-05 | fixed knot constructs and has its medical load handling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105852942A CN105852942A (en) | 2016-08-17 |
| CN105852942B true CN105852942B (en) | 2019-12-13 |
Family
ID=56627078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610205206.7A Active CN105852942B (en) | 2016-04-05 | 2016-04-05 | fixed knot constructs and has its medical load handling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105852942B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264639B (en) * | 2016-09-30 | 2019-05-31 | 江苏风和医疗器材股份有限公司 | A kind of moving link and its detection device for stapler percussion force checking device |
| US11412960B2 (en) * | 2017-08-28 | 2022-08-16 | Medtronic Minimed, Inc. | Pedestal for sensor assembly packaging and sensor introducer removal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762157A (en) * | 2009-12-22 | 2012-10-31 | 库克医学技术有限责任公司 | Medical devices with detachable pivotable jaws |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327134B (en) * | 2010-07-13 | 2013-08-28 | 周星 | Endoscope object taking bag and delivery system |
| CN101983620B (en) * | 2010-12-02 | 2012-06-06 | 深圳市开立科技有限公司 | Intracavitary probe and puncture frame with convenient handling and use |
| US8734464B2 (en) * | 2011-01-06 | 2014-05-27 | Covidien Lp | Surgical retrieval apparatus for thoracic procedures |
| CN103654913A (en) * | 2012-09-25 | 2014-03-26 | 常州德天医疗器械有限公司 | Endoscope solid recycling device capable of being temporarily assembled |
| CN203263499U (en) * | 2013-06-20 | 2013-11-06 | 石岩 | Novel surgical knife |
| EP2962644A1 (en) * | 2014-06-30 | 2016-01-06 | BioScopeX ApS | Endoscopic biopsy instrument |
| CN204181656U (en) * | 2014-09-15 | 2015-03-04 | 北华大学 | The disposable gastroscope biopsy forceps improved |
-
2016
- 2016-04-05 CN CN201610205206.7A patent/CN105852942B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762157A (en) * | 2009-12-22 | 2012-10-31 | 库克医学技术有限责任公司 | Medical devices with detachable pivotable jaws |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105852942A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2633827B1 (en) | Surgical introducer and access port assembly | |
| US9554824B2 (en) | Orifice introducer device | |
| DE69737192T2 (en) | Fingertip-mounted instrument for minimally invasive surgery | |
| CA2564136C (en) | Gastrostomy tube extension device | |
| AU2008203052B2 (en) | Surgical methods and devices with movement assistance | |
| US20050119525A1 (en) | Insertion auxiliary implement | |
| KR20060117278A (en) | Medical devices for use with endoscope | |
| WO1998022030A1 (en) | Systems, methods, and instruments for minimally invasive surgery | |
| WO1999066827A1 (en) | Lateral wall retractor vaginal speculum | |
| CN105852942B (en) | fixed knot constructs and has its medical load handling device | |
| US20120232572A1 (en) | Multi-Trocar System | |
| CN106073868B (en) | Medical fetching device | |
| JP3522362B2 (en) | Storage bag for removed organ in endoscopic surgery | |
| CN105852943B (en) | Medical fetching device | |
| JPH09173337A (en) | Enucleated organ housing bag and its intra-celom inserting device as well as expander of enucleated organ housing bag | |
| JP4896504B2 (en) | System device consisting of a retractor and a retractor assisting device | |
| JP3737540B2 (en) | Trocar mantle and trocar | |
| CN219089531U (en) | Ultrasonic tool bit outer sleeve assembly | |
| CN217772394U (en) | Step-by-step expansion sleeve assembly for spinal minimally invasive surgery | |
| EP3698741A1 (en) | Access assembly including flexible cannula | |
| CN210962127U (en) | Meniscus stitching instrument | |
| CN105877820A (en) | Medical fetching device | |
| JPH0713301U (en) | Insertion tool for trocar | |
| CN105769307A (en) | Medical extractor | |
| Francois | Lateral wall retractor vaginal speculum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant after: Jiangsu wind and medical equipment Limited by Share Ltd Address before: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant before: Jiangsu wind and medical equipment Co., Ltd |
|
| CB02 | Change of applicant information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Baofeng Inventor after: Li Zhiyu Inventor before: Sun Baofeng Inventor before: Li Zhiyu Inventor before: Huang Chen |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |