CN113367741B - Gynaecology uses uterus myoma sampling device - Google Patents
Gynaecology uses uterus myoma sampling device Download PDFInfo
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- CN113367741B CN113367741B CN202110816923.4A CN202110816923A CN113367741B CN 113367741 B CN113367741 B CN 113367741B CN 202110816923 A CN202110816923 A CN 202110816923A CN 113367741 B CN113367741 B CN 113367741B
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- 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
- A61B10/0233—Pointed or sharp biopsy instruments
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- 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
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
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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
A gynecological hysteromyoma sampling device comprises a probing rod body and a clamping assembly. The probing rod body comprises a hollow outer cylinder, a sliding core cylinder, a mounting side hole and a side inserting strip; the clamping assembly is provided with two parts, and one clamping assembly is arranged in each side hole. The clamping assembly comprises a hinged core shaft, a right swing rod, a left transmission rod, a left driving rod and a left driven rod. The right swing rod comprises a follow-up rod body, a follow-up lantern ring, a rotation stopping plug and a rotation stopping stop rod.
Description
Technical Field
The application relates to the technical field of medical equipment, concretely relates to gynaecology is with hysteromyoma sampling device.
Background
Uterine fibroid is one of the most common benign tumors in female reproductive organs, and is also one of the most common tumors in human body, which is also called fibroid and uterine fibroid. Since the uterine fibroids are mainly formed by proliferation of uterine smooth muscle cells, and a small amount of fibrous connective tissue exists as a supporting tissue, the uterine fibroids are known to be more definite. For short, hysteromyoma. Usually, the disease is classified into subplasmic myoma, intramural myoma and submucosal myoma according to the location of the occurrence of uterine fibroids. For submucosal fibroids that have prolapsed, samples can be taken transvaginally due to their prolapse from the cervix to the vagina.
However, for some hysteromyoma with possible deterioration of prolapse, the most accurate examination method still depends on obtaining the surface tissue fluid or myoma tissue for pathological examination. In the prior art, a cotton swab is usually used for dipping tissue fluid on the surface of a myoma, or common forceps are used for clamping the myoma tissue, the operation process is rough, the result is inaccurate, and the normal tissue is easily injured. It is therefore desirable to design a sampling device that can access the uterus of a patient transvaginally to access the pathology of submucosal myomas.
Disclosure of Invention
A gynecological hysteromyoma sampling device comprises
The rod body is inserted into the vagina and is used for approaching the cervical orifice through the vagina;
the clamping assembly is arranged at the front end of the probing rod body and is used for sampling on the surface of the hysteromyoma.
As a further embodiment:
the exploring rod body comprises a hollow outer barrel arranged in the front-back direction and a sliding core barrel slidably arranged in an inner cavity of the hollow outer barrel, the upper part and the lower part of the front end of the inner cavity of the hollow outer barrel are respectively provided with a placement side hole, the upper part and the lower part of the front end of the sliding core barrel are respectively provided with a lateral insertion strip which is in splicing fit with the corresponding placement side holes, the outer wall of the middle part of the sliding core barrel is also formed with a pressure spring ring groove, a pressure spring convex ring is further arranged at the position, corresponding to the pressure spring ring groove, of the inner wall of the hollow outer barrel, and a core barrel pressure spring is further arranged at the position, located in front of the pressure spring convex ring, of the pressure spring ring groove;
the clamping assembly is provided with two, and one clamping assembly is arranged in each side arranging hole.
As a further embodiment, a specific example is provided for the grasping assembly:
the clamping assembly comprises:
the hinge mandrel is arranged on the right side of the corresponding arrangement side hole, a right annular groove is formed in the right end of the hinge mandrel, and a left annular groove is formed in the left end of the hinge mandrel;
the right swing rod is hinged in the right annular groove of the hinge core shaft;
the left transmission rod is hinged in the left annular groove of the hinge core shaft;
one end of the left driving rod is hinged with the proximal end of the left transmission rod, and the other end of the left driving rod is hinged with the distal end of the corresponding side-mounted cutting;
one end of the left driven rod is hinged with the far end of the left transmission rod, and the other end of the left driven rod is hinged with the front end of the right swing rod.
The proximal end refers to the end close to the axis of the hollow outer cylinder, and the distal end refers to the end far away from the axis of the hollow outer cylinder.
Further:
put the pendulum rod on the right side and include the follow-up body of rod, still include:
the follow-up sleeve ring is arranged at the rear end of the follow-up rod body, the follow-up sleeve ring is rotatably sleeved on the hinge core shaft, and anti-drop plugs inserted into the right annular groove are uniformly distributed on the inner wall of the follow-up sleeve ring in the circumferential direction;
the rotation stopping plug is formed on the rear side below the follow-up lantern ring;
and the rotation stopping stop lever is formed at the right end of the side hole, and is stopped at the far end of the rotation stopping plug so as to limit the rotation freedom degree of the follow-up lantern ring and the follow-up rod body.
And further:
a follow-up mandrel is further arranged on the left side of the front end of the follow-up rod body;
the left driven rod comprises a first hinge rod hinged with the left transmission rod and a second hinge rod, the rear end of the second hinge rod is hinged with the first hinge rod, the front end of the second hinge rod is hinged with the follow-up mandrel, a rotation stopping stop block stopped at the far end of the first hinge rod is further arranged on the right side of the rear end of the second hinge rod, and meshing front teeth are further formed at the front end of the second hinge rod;
the clamping assembly further comprises a reset torsion spring sleeved on the follow-up core shaft, one end of the reset torsion spring is fixedly connected with the right swing rod, the other end of the reset torsion spring is fixedly connected with the second hinge rod, and the second hinge rod drives the second hinge rod to rotate until the rotation stopping stop block is abutted against the far-end of the first hinge rod for stopping.
As a further embodiment:
the sampling device also comprises a damping adjusting device used for adjusting the torsion of the reset torsion spring;
the damping adjustment device includes:
the driven worm wheel is rotatably arranged at the right end of the follow-up mandrel;
the adjusting assembly comprises an installation base arranged on the left end face of the follow-up rod body, a wheel placing groove body arranged at the lower end of the installation base, a driving wheel shaft formed at the lower half part of the wheel placing groove body, a driving gear rotatably arranged on the driving wheel shaft, a horizontal blind hole arranged along the front-back direction and communicated with the wheel placing groove body, a horizontal rotating shaft rotatably arranged in the horizontal blind hole, a driven gear formed in the middle of the horizontal rotating shaft and meshed with the driving gear, and a driving bevel wheel formed at the front end of the horizontal rotating shaft, wherein the lower end of the driving gear is exposed below the lower end face of the installation base;
the worm assembly comprises a transverse base arranged below the front end of the mounting base, a worm mandrel formed above the front end of the transverse base, a driving worm rotatably arranged on the worm mandrel and in transmission connection with a driven worm wheel, and a driven bevel wheel formed at the upper end of the driving worm and in transmission connection with the driving bevel wheel.
As a further embodiment:
the sampling device further comprises a precision adjustment device, the precision adjustment device comprising:
the cylinder ring groove is formed in the rear half part of the outer wall of the hollow outer cylinder;
the internal thread ring is rotatably arranged in the cylinder ring groove;
the core bar ring groove is formed on the outer wall of the sliding core cylinder;
the core bar slip ring is slidably arranged in the core bar ring groove;
the side sliding chutes are circumferentially and uniformly distributed in the inner cavity of the hollow outer barrel and are communicated with the barrel ring groove;
the connecting sliding blocks are circumferentially and uniformly distributed on the outer wall of the core bar sliding ring, the connecting sliding blocks correspond to the side sliding grooves in a one-to-one inserting mode, and external threads in threaded connection with the internal thread ring are formed at the far end of each connecting sliding block.
Advantageous effects
According to the gynecological hysteromyoma sampling device, the probing rod body is convenient to insert into a patient body, and sampling is further convenient.
The hysteromyoma sampling device for the gynecology department can realize two acquisition modes of clamping and cutting a sample:
when the occlusion front teeth of the two left driven rods are tightly attached to each other but are not occluded, the clamping action on the myoma surface sample is realized.
When the occlusion front teeth of the two left driven rods are occluded in a staggered manner, the cutting action of the myoma surface sample is realized.
Because the surface quality of the myoma of part of patients is not high, bleeding or other conditions can be caused by direct cutting, and therefore, tissue fluid and a few of free cells on the surface of the myoma can be clamped only without damaging the surface tissue of the myoma. While for patients with fibroid surfaces that allow for microtome dissection, a tissue sample may be obtained using the dissection action. The two acquisition modes provided by the sampling device can meet different sampling modes under two conditions.
The hysteromyoma sampling device for the gynecology department can also adjust the damping of the reset torsion spring through the damping adjusting device, so as to ensure that the cutting action can be carried out after the clamping action is effectively finished:
the damping adjusting device can adjust the torsion of the reset torsion spring in a normal state, and further adjust the damping for relatively twisting the first hinge rod and the second hinge rod. And further, the left driven rod is prevented from being bent in advance at least before the right swing rod rotates to a stop point (namely the rotation stopping plug is stopped by the rotation stopping stop rod). The right swing rod is guaranteed to be capable of only achieving clamping when rotating to a stop point, the left driven rod is bent by itself after the right swing rod rotates to the stop point, and accordingly cutting action is guaranteed to be achieved after the clamping action is effectively completed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic view of a common uterine fibroid location.
FIG. 2 is a schematic view of an embodiment of the sampling device.
Fig. 3 is a sampling schematic diagram of the sampling device.
FIG. 4 is a cross-sectional view of one embodiment of the sampling device.
Fig. 5 is an enlarged view of an embodiment of part a of fig. 4.
Fig. 6 is an enlarged view of the alternative embodiment of section a of fig. 4.
Fig. 7 is an enlarged view of a further embodiment of part a of fig. 4.
FIG. 8 is a cross-sectional view of one embodiment of section B-B of FIG. 5.
Figure 9 is a cross-sectional view of one embodiment of section C-C of figure 5.
FIG. 10 is a schematic view of an embodiment of the right swing link and damping adjustment device.
FIG. 11 is a schematic view of another embodiment of the right pendulum rod damping adjustment mechanism.
FIG. 12 is a cross-sectional view of one embodiment of the damping adjustment device.
Fig. 13 is an enlarged view of an embodiment of section D of fig. 12.
Fig. 14 is a schematic view of the angle between the first hinge rod and the second hinge rod.
Icon:
a1. endometrioma (prolapsed), a2. Endometrioma (not prolapsed), b. Myoma between muscle walls, c. Myoma under serosa;
1. the rod body is inserted, 11 parts of the hollow outer cylinder, 12 parts of the sliding core cylinder, 13 parts of the side hole are arranged, and 14 parts of the side inserting strip are arranged;
2. a gripping assembly;
21. the hinge core shaft 21a is provided with a right annular groove, and 21b is provided with a left annular groove;
22. the swing rod is arranged on the right, 22a is a follow-up rod body, 22b is a follow-up lantern ring, 22c is an anti-drop plug, 22d is a rotation-stopping plug, 22e is a rotation-stopping stop rod, and 22f is a follow-up mandrel;
23. a left drive link;
24. a left driving lever;
25. a left driven rod, 25a, a first hinge rod, 25b, a second hinge rod and 25c, a meshing front tooth;
26. a return torsion spring;
3. the damping adjusting device comprises a damping adjusting device 31, a driven worm wheel 32, an adjusting assembly 32, an installation base 32a, a wheel placing groove body 32b, a driving wheel shaft 32c, a driving gear 32d, a driving gear 32e, a horizontal blind hole 32f, a horizontal rotating shaft 32g, a driven gear 32h and a driving conical pulley;
33. the worm assembly, 33a, a transverse foundation, 33b, a worm mandrel, 33c, a driving worm, 33d, a driven bevel wheel;
4. the precision adjusting device comprises a cylinder body ring groove 41, an internal thread ring 42, a core rod ring groove 43, a core rod sliding ring 44, a side sliding groove 45 and a connecting sliding block 46.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
A gynecological hysteromyoma sampling device comprises
The rod body 1 is inserted into the vagina to approach the cervical orifice;
the clamping assembly 2 is arranged at the front end of the probing rod body 1 and is used for sampling on the surface of the hysteromyoma.
As a further embodiment:
the exploring rod body 1 comprises a hollow outer cylinder 11 and a sliding core cylinder 12, wherein the hollow outer cylinder 11 is arranged in the front-back direction, the sliding core cylinder 12 is slidably arranged in an inner cavity of the hollow outer cylinder 11, a placement side hole 13 is respectively arranged at the upper part and the lower part of the front end of the inner cavity of the hollow outer cylinder 11, side insertion strips 14 which are in insertion fit with the corresponding placement side holes 13 are respectively arranged at the upper side and the lower side of the front end of the sliding core cylinder 12, a pressure spring annular groove 15 is further formed in the outer wall of the middle of the sliding core cylinder 12, a pressure spring convex ring 16 is further arranged at the position, corresponding to the pressure spring annular groove 15, of the inner wall of the hollow outer cylinder 11, and a core cylinder pressure spring 17 is further arranged at the position, located in front of the pressure spring convex ring 16, of the pressure spring annular groove 15;
the clamping assembly 2 is provided with two parts, and one clamping assembly is arranged in each side arranging hole 13.
As a further embodiment, the hollow outer cylinder 11 is expanded radially outward corresponding to the grasping assembly 2, and covers at least the radially outermost end of the grasping assembly 2, so as to avoid the sharp radially outermost end of the grasping assembly 2 from accidentally injuring the tissue in the patient body when bent.
As a further embodiment, a specific example is provided for the gripping assembly 2:
the gripping assembly 2 includes:
the hinge mandrel 21 is arranged on the right side of the corresponding arrangement side hole 13, a right annular groove 21a is formed in the right end of the hinge mandrel 21, and a left annular groove 21b is formed in the left end of the hinge mandrel 21;
the right swing rod 22 is hinged in a right annular groove 21a of the hinge core shaft 21;
the left transmission rod 23 is hinged in the left annular groove 21a of the hinge mandrel 21;
one end of the left driving rod 24 is hinged with the proximal end of the left driving rod 23, and the other end of the left driving rod is hinged with the distal end of the corresponding side-mounted inserting strip 14;
one end of the left driven rod 25 is hinged with the far end of the left transmission rod 23, and the other end of the left driven rod 25 is hinged with the front end of the right swing rod 22;
thanks to the above improved technical scheme, the clamping assembly 2 can drive the left driving rod 24 to move through the simple drawing side-mounted inserting strip 13, and further drive the left driving rod 23 to swing, so that the left driven rod 25 and the right swing rod 22 swing, and finally, the effective clamping movement is realized through the front end of the right swing rod 22.
The proximal end refers to the end close to the axis of the hollow outer cylinder 11, and the distal end refers to the end far away from the axis of the hollow outer cylinder 11.
And further:
put pendulum rod 22 on the right side includes follow-up body of rod 22a, still includes:
the follow-up sleeve ring 22b is arranged at the rear end of the follow-up rod body 22a, the follow-up sleeve ring 22b is rotatably sleeved on the hinge core shaft 21, and anti-falling plugs 22c inserted into the right annular groove 21a are uniformly distributed on the inner wall of the follow-up sleeve ring 22b in the circumferential direction;
a rotation stopping plug 22d formed at the rear side below the follow-up collar 22 b;
and the rotation stopping stop rod 22e is formed at the right end of the arrangement side hole 13, and the rotation stopping stop rod 22e stops at the far end of the rotation stopping plug 22d so as to limit the rotation freedom degree of the follow-up lantern ring 22b and the follow-up rod body 22a.
Thanks to the improved technical scheme, the rotation of the right swing rod 22 is effectively limited, and the front end of the right swing rod 22 is prevented from excessively rotating towards the axis of the hollow outer cylinder 11.
And further:
a follow-up mandrel 22f is further arranged on the left side of the front end of the follow-up rod body 22 a;
the left driven rod 25 comprises a first hinge rod 25a hinged with the left driving rod 23 and a second hinge rod 25b, the rear end of the second hinge rod is hinged with the first hinge rod 25a, the front end of the second hinge rod is hinged with the follow-up mandrel 22f, a rotation stopping stop block 25c stopped at the far end of the first hinge rod 25a is further arranged on the right side of the rear end of the second hinge rod 25b, and a meshing front tooth 25d is further formed at the front end of the second hinge rod 25 b;
get assembly 2 and still establish including the cover reset torsion spring 26 on the follow-up dabber 22f, the pendulum rod 22 fixed connection and the other end and second hinge pole 25b fixed connection are put on the right to reset torsion spring 26 one end, the drive of reset torsion spring 26 second hinge pole 25b rotates and stops when stopping rotatory dog 25c and leaning on at first hinge pole 25a telecentric end.
Thanks to the improved technical scheme, the left driven rod 25 keeps a relaxed stable posture in a normal state, that is, the front end of the second hinge rod 25b swings in a direction away from the axis of the hollow outer cylinder 11 under the action of the reset torsion spring 26 until the rotation stop block 25c abuts against the far end of the first hinge rod 25a and is stopped. In this state, when the distal end of the left transmission rod 23 swings forward, the entire left driven rod 25 and the right swing rod 22 are driven to rotate together, instead of pressing and bending the first hinge rod 25a and the second hinge rod 25b of the left transmission rod 23.
As a further embodiment:
the sampling device also comprises a damping adjusting device 3 for adjusting the torsion of the reset torsion spring 26;
the damping adjustment device 3 includes:
the driven worm wheel 31 is rotatably arranged at the right end of the follow-up mandrel 22f;
the adjusting assembly 32 comprises an installation base 32a arranged on the left end surface of the follower rod body 22a, a wheel placing groove body 32b arranged at the lower end of the installation base 32a, a driving wheel shaft 32c formed at the lower half part of the wheel placing groove body 32b, a driving gear 32d rotatably arranged on the driving wheel shaft 32c, a horizontal blind hole 32e arranged in the front-back direction and communicated with the wheel placing groove body 32b, a horizontal rotating shaft 32f rotatably arranged in the horizontal blind hole 32e, a driven gear 32g formed in the middle of the horizontal rotating shaft 32f and meshed with the driving gear 32d, and a driving bevel wheel 32h formed at the front end of the horizontal rotating shaft 32f, wherein the lower end of the driving gear 32d is exposed below the lower end surface of the installation base 32 a;
the worm assembly 33 comprises a transverse base 33a arranged below the front end of the installation base 32a, a worm spindle 33b formed above the front end of the transverse base 33a, a driving worm 33c which is rotatably arranged on the worm spindle 33b and is in transmission connection with the driven worm wheel 31, and a driven bevel wheel 33d which is formed at the upper end of the driving worm 33c and is in transmission connection with the driving bevel wheel 32h.
Thanks to the above improved solution, the damping adjustment device 3 can adjust the torsion of the return torsion spring 26 in a normal state, and thus adjust the damping for relatively twisting both the first hinge rod 25a and the second hinge rod 25b. Thereby ensuring that the left driven rod 25 is not bent in advance at least before the right swing link 22 rotates to a dead point (i.e. the rotation stop pin 22e stops the rotation stop plug 22 d). The right swing rod 22 can only realize clamping when rotating to a stop point, and the left driven rod 25 is bent after the right swing rod 22 rotates to the stop point, so that cutting action is realized.
As a further embodiment:
the sampling device further comprises a fine adjustment device 4, the fine adjustment device 4 comprising:
a cylinder ring groove 41 formed in the rear half of the outer wall of the hollow outer cylinder 11;
an internal thread ring 42 rotatably provided in the cylinder ring groove 41;
a core bar ring groove 43 formed on the outer wall of the sliding core barrel 12;
a core rod slip ring 44 slidably disposed in the core rod ring groove 43;
the side sliding chutes 45 are circumferentially and uniformly distributed in the inner cavity of the hollow outer barrel 11 and are communicated with the barrel ring groove 41;
and the connecting sliding blocks 46 are circumferentially and uniformly distributed on the outer wall of the core bar sliding ring 44, the connecting sliding blocks 46 correspond to the side sliding grooves 45 in a one-to-one inserting manner, and external threads which are in threaded connection with the internal thread ring 42 are formed at the far end of the connecting sliding blocks 46.
Thanks to the above improved solution, a solution is provided that allows a precise adjustment of the sliding cartridge 12. Through the nut screw effect of the internal threaded ring 42 and the connecting slider 46, the internal threaded ring 42 rotates for a circle, and the connecting slider 46 moves by a distance of one thread pitch, so that the position adjustment of the sliding cartridge 12 is more accurate.
It should be noted that the teeth of the engaged front teeth of the two clamping assemblies are arranged in a staggered manner.
As a further embodiment, a widened portion formed by widening outward in the radial direction is formed at the front end of the hollow outer cylinder 11 corresponding to the left transmission rod 23 to cover the left transmission rod 23, so as to prevent the patient from being injured when the end of the left transmission rod 23 away from the hollow outer cylinder 11 is hinged.
Under a normal state, namely when the reset torsion spring 26 drives the second hinge rod 25b to rotate until the rotation stop stopper 25c abuts against the far end of the first hinge rod 25a and is stopped, an acute angle included angle alpha generated by the intersection of the axes of the first hinge rod 25a and the second hinge rod 25b meets the condition that alpha is more than 10 degrees and less than 45 degrees.
The use method of the sampling device is as follows:
advancing a sampling device into the vagina and proximal to the cervix;
sampling the surface of the prolapsed myoma under the mucosa;
and step 3, taking out:
and taking out the sampling device and the sample.
As a further embodiment, the step 2 sampling specifically comprises the following steps:
step 2.1, clamping:
the sliding core barrel 12 is pulled backwards by hand, so that the sliding core barrel drives the side-mounted inserting strips 14 and the pressure spring ring grooves 15 to overcome the damping of a pressure spring 17 of the core barrel and move backwards relative to the hollow outer barrel 11;
the side-mounted cutting 14 drives the left driving rod 24 to move backwards;
the left driving rod 24 drives the near-center end of the left driving rod 23 to swing backwards;
the far end of the left transmission rod 23 drives the left driven rod 25 and the right swing rod 22 to rotate around the hinge core shaft 21 towards the axis direction of the hollow outer cylinder 11 until the rotation stopping plug 22d is stopped by the rotation stopping stop block 22e, and the right swing rod 22 stops rotating and gives obvious feedback to the hand of a user;
at the moment, the occlusal front teeth 25d of the two left driven rods 25 are tightly attached to each other but do not occlude, and the myoma surface is clamped with a sample;
then, the internal thread ring 42 is rotated to drive the connecting slide block 46 and the core rod slide ring 44 to move backwards along the core rod ring groove 43 until the rear end of the core rod slide ring 44 abuts against the rear end of the core rod ring groove 43, so that the posture of the sliding core barrel 12 is fixed, and the sliding core barrel 12 and the pressure spring ring groove 15 are prevented from being reset forwards under the action of a core barrel pressure spring 17 after hands are loosened;
step 2.2, cutting:
the internal thread ring 42 is continuously rotated to drive the connecting slide block 46 and the core rod slide ring 44 to move backwards, so as to drive the core rod ring groove 43 and the sliding core barrel 12 to move backwards;
the sliding core barrel 12 continues to drive the side-mounted cutting slips 14 to move backwards, and further drives the left driving rod 24 to move backwards, and further drives the near-center end of the left driving rod 23 to continue swinging backwards;
the far end of the left driving rod 23 continuously swings forwards and extrudes the left driven rod 25, and as the right swing rod 22 stops rotating, under the joint extrusion action of the right swing rod 22 and the left driving rod 23, the left driven rod 25a and the second hinge rod 25b overcome the torsion of the reset torsion spring 26 to bend, and the front end of the second hinge rod 25b further bends towards the axis direction of the hollow outer cylinder 11;
at the moment, the occlusion front teeth 25d of the two left driven rods 25 are in staggered occlusion, and samples are cut from the surface of the myoma;
when the myoma surface needs to be clamped, only the step 2.1 is executed;
when the myoma surface needs to be cut, step 2.1 and step 2.2 are executed.
As a further embodiment, step 4 is also included, the damping threshold of the initial bending of the left driven rod 25 is pre-adjusted:
rotating the portion of the driving gear 32d exposed outside the mounting base 32 a;
the driving gear 32d rotates to drive the driven gear 32g, the horizontal rotating shaft 32f and the driving bevel wheel 32h to rotate;
the driving conical pulley 32h drives the driven conical pulley 33d and the driving worm 33c to rotate;
the driving worm 33c drives the driven worm wheel 31 to rotate;
the driven worm wheel 31 adjusts the rotation angle and the torsion of the reset torsion spring 26;
and thereby the damping at which the first and second hinge rods 25a and 25b are initially bent against the torsion force of the return torsion spring 26, i.e., the damping threshold at which the sliding cartridge 12 is pulled backward so that the left driven rod 25 is initially bent.
Referring to fig. 9 and 10 in the specification, the position of the connection point P between the return torsion spring 26 and the driven worm wheel 31 is rotated, which inevitably causes the degree of torsion of the return torsion spring 26 to change, and the torsion force thereof to change.
As a further embodiment, the outer wall of the internally threaded ring 42 is provided with anti-slip means.
As a further embodiment, the anti-slip means on the outer wall of the internal thread ring 42 is a circumferentially uniform anti-slip thread.
As a further embodiment, when the sliding core barrel 12 moves forward until the compression spring convex ring 16 is blocked at the rear end of the compression spring ring groove 15, the rear end of the sliding core barrel 12 is exposed at the rear end of the hollow outer barrel 11 by 10mm-100mm.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a gynaecology uses uterus myoma sampling device which characterized in that: comprises that
A probing rod body (1) for approaching the cervical orifice through the vagina;
the clamping assembly (2) is arranged at the front end of the probing rod body (1) and is used for sampling on the surface of the hysteromyoma;
the exploring rod body (1) comprises a hollow outer cylinder (11) arranged in the front-back direction and a sliding core cylinder (12) arranged in the inner cavity of the hollow outer cylinder (11) in a sliding mode, a side hole (13) is arranged at the front end of the inner cavity of the hollow outer cylinder (11) from top to bottom respectively, side insertion strips (14) in insertion fit with the corresponding side holes (13) are arranged on the upper side and the lower side of the front end of the sliding core cylinder (12) respectively, a pressure spring annular groove (15) is formed in the outer wall of the middle of the sliding core cylinder (12), a pressure spring convex ring (16) is further arranged at the position, corresponding to the pressure spring annular groove (15), of the inner wall of the hollow outer cylinder (11), and a core cylinder pressure spring (17) is further arranged in front of the pressure spring convex ring (16);
the clamping assemblies (2) are two, and one clamping assembly (2) is arranged in each side arranging hole (13);
the gripping assembly (2) comprises:
the hinge mandrel (21) is arranged on the right side of the corresponding arrangement side hole (13), a right annular groove (21 a) is formed in the right end of the hinge mandrel (21), and a left annular groove (21 b) is formed in the left end of the hinge mandrel (21);
the right swing rod (22) is hinged in a right annular groove (21 a) of the hinged core shaft (21);
the left transmission rod (23) is hinged in a left annular groove (21 b) of the hinged core shaft (21);
one end of the left driving rod (24) is hinged with the proximal end of the left driving rod (23), and the other end of the left driving rod is hinged with the distal end of the corresponding side-mounted inserting strip (14);
one end of the left driven rod (25) is hinged with the far end of the left driving rod (23), and the other end of the left driven rod is hinged with the front end of the right swing rod (22);
the proximal end refers to one end close to the axis of the hollow outer cylinder (11), and the distal end refers to one end far away from the axis of the hollow outer cylinder (11);
put pendulum rod (22) on the right side includes follow-up body of rod (22 a), still includes:
the follow-up sleeve ring (22 b) is arranged at the rear end of the follow-up rod body (22 a), the follow-up sleeve ring (22 b) is rotatably sleeved on the hinge core shaft (21), and anti-falling plugs (22 c) inserted into the right annular groove (21 a) are uniformly distributed on the inner wall of the follow-up sleeve ring (22 b) in the circumferential direction;
a rotation stopping plug (22 d) formed at the rear side below the follow-up lantern ring (22 b);
stop pin (22 e), the shaping is in settling side opening (13) right-hand member, stop pin (22 e) stop at stop plug (22 d) far away end and then restrict the rotational degree of freedom of follow-up lantern ring (22 b), follow-up body of rod (22 a).
2. A gynecological fibroid sampling device according to claim 1, wherein:
a follow-up mandrel (22 f) is also arranged on the left side of the front end of the follow-up rod body (22 a);
the left driven rod (25) comprises a first hinge rod (25 a) hinged with the left driving rod (23), and further comprises a second hinge rod (25 b) with the rear end hinged with the first hinge rod (25 a) and the front end hinged with the follow-up mandrel (22 f), a rotation stopping stop block (25 c) stopped at the far end of the first hinge rod (25 a) is further arranged on the right side of the rear end of the second hinge rod (25 b), and meshing front teeth (25 d) are further formed at the front end of the second hinge rod (25 b);
press from both sides and get assembly (2) and still establish including the cover reset torsion spring (26) on follow-up dabber (22 f), pendulum rod (22) fixed connection and the other end and second hinge lever (25 b) fixed connection are put on the right side to reset torsion spring (26) one end, reset torsion spring (26) drive second hinge lever (25 b) rotate and block when leaning on at first hinge lever (25 a) telecentric services until stopping rotatory dog (25 c).
3. A gynecological fibroid sampling device according to claim 2, wherein:
the damping adjusting device (3) is used for adjusting the torsion of the reset torsion spring (26);
the damping adjustment device (3) comprises:
the driven worm wheel (31) is rotatably arranged at the right end of the follow-up mandrel (22 f);
the adjusting assembly (32) comprises an installation base (32 a) arranged on the left end face of the follow-up rod body (22 a), a wheel placing groove body (32 b) arranged at the lower end of the installation base (32 a), a driving wheel shaft (32 c) formed at the lower half part of the wheel placing groove body (32 b), a driving gear (32 d) rotatably arranged on the driving wheel shaft (32 c), a horizontal blind hole (32 e) arranged along the front-back direction and communicated with the wheel placing groove body (32 b), a horizontal rotating shaft (32 f) rotatably arranged in the horizontal blind hole (32 e), a driven gear (32 g) formed in the middle of the horizontal rotating shaft (32 f) and meshed with the driving gear (32 d), and a driving bevel wheel (32 h) formed at the front end of the horizontal rotating shaft (32 f), wherein the lower end of the driving gear (32 d) is exposed below the lower end face of the installation base (32 a);
the worm assembly (33) comprises a transverse base (33 a) arranged below the front end of the mounting base (32 a), a worm mandrel (33 b) formed above the front end of the transverse base (33 a), a driving worm (33 c) rotatably arranged on the worm mandrel (33 b) and in transmission connection with the driven worm wheel (31), and a driven cone wheel (33 d) formed at the upper end of the driving worm (33 c) and in transmission connection with the driving cone wheel (32 h).
4. A gynecological fibroid sampling device according to claim 3, wherein:
still include accurate adjusting device (4), accurate adjusting device (4) include:
a cylinder ring groove (41) formed in the rear half part of the outer wall of the hollow outer cylinder (11);
the internal thread ring (42) is rotatably arranged in the cylinder ring groove (41);
the core rod ring groove (43) is formed in the outer wall of the sliding core barrel (12);
the core bar slip ring (44) is arranged in the core bar ring groove (43) in a sliding way;
the side sliding chutes (45) are circumferentially and uniformly distributed in the inner cavity of the hollow outer cylinder (11) and are communicated with the cylinder ring groove (41);
the connecting sliding blocks (46) are circumferentially and uniformly distributed on the outer wall of the core bar sliding ring (44), the connecting sliding blocks (46) correspond to the side sliding grooves (45) in a one-to-one inserting mode, and external threads in threaded connection with the internal thread ring (42) are formed at the far end of each connecting sliding block (46).
5. A gynecological fibroid sampling device according to claim 4, characterized in that:
the outer wall of the internal thread ring (42) is provided with an anti-skid device.
6. A gynecological fibroid sampling device according to claim 5, wherein:
the anti-skidding device on the outer wall of the internal thread ring (42) is made of anti-skidding threads which are uniformly distributed in the circumferential direction.
7. A gynecological fibroid sampling device according to claim 6, characterized in that:
when the sliding core barrel (12) moves forwards until the compression spring convex ring (16) is clamped at the rear end of the compression spring ring groove (15), the rear end of the sliding core barrel (12) is exposed at the rear end of the hollow outer barrel (11) by 10-100 mm.
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| CN202110816923.4A CN113367741B (en) | 2021-07-20 | 2021-07-20 | Gynaecology uses uterus myoma sampling device |
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| CN202110816923.4A CN113367741B (en) | 2021-07-20 | 2021-07-20 | Gynaecology uses uterus myoma sampling device |
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| CN113367741B true CN113367741B (en) | 2023-04-07 |
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| CN112472215A (en) * | 2020-12-15 | 2021-03-12 | 刘锦 | Multipurpose holder for clinical use of gynaecology and obstetrics |
| CN112828873A (en) * | 2021-02-21 | 2021-05-25 | 桂林航天工业学院 | Multi-degree-of-freedom mechanical arm |
| CN113040833A (en) * | 2021-03-01 | 2021-06-29 | 苗秀明 | Pathology department uses human sampling device |
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Effective date of registration: 20230316 Address after: Mencius Lake District, Zoucheng People's Hospital, No. 66, Renai Road, No. 5677, Chongyi Road, Zoucheng City, Jining City, Shandong Province, 273500 Applicant after: Zhang Jianling Applicant after: Shi Mei Applicant after: Qin Yinghui Address before: 255000 Texin commercial building, Boshan District, Zibo City, Shandong Province Applicant before: Han Jie |
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