CN217744540U - Special built-in cervical clamp for conization resection of cervix - Google Patents

Abstract

The utility model provides a built-in cervical clamp special for conization resection operation, which relates to the technical field of medical instruments, and comprises a hollow probe; a connecting rod penetrating through the hollow probe is arranged in the hollow probe, and one end of the connecting rod is provided with a telescopic fixing structure; the maximum diameter of the telescopic fixing structure can be changed along with the movement of the connecting rod; and scales are arranged at any one end or two ends of the hollow probe or the connecting rod. The built-in cervical clamp fixes the grasping clamp in the cervical canal, is favorable for fixing the cervix in the operation process, calibrating the depth of the cervical canal, and cutting the cervical lesion range in a standardized and standardized way, avoids excessive damage to cervical tissues and the like, and is favorable for optimizing the steps in the operation process.

Description

Special built-in cervical clamp for conization resection

Technical Field

The utility model discloses a built-in cervical clamp for conization of cervix, in particular to the technical field of medical instruments.

Background

Conization is a partial cervical resection, and is an important method for diagnosing and treating cervical precancerous lesions and early invasive carcinoma. When the cervical conization is performed, the external cervical orifice including lesion, the transformation area, the squamous epithelium boundary and the tissues in the cervical canal need to be cut off, and the tissue specimen can be kept for histological evaluation while the lesion is cut off, so that whether the lesion exists, the range and the depth of the lesion, the condition of the lesion at the incisal edge (incisal edge positive or incisal edge negative) and whether the infiltration exists or not are determined, and the infiltration cancer focus is measured under a microscope. Cervical conization includes cervical Cold Knife Coning (CKC), cervical Electric Knife Coning (EKC), cervical circular electrocision (LEEP), cervical radio frequency knife coning, cervical cryotherapy, etc., depending on the type of surgical instrument.

The cervical conization requires the following operation steps: the patient takes the bladder lithotomy position, and after the vein anesthesia succeeds, the sterile surgical towel is paved on the vulva through conventional disinfection. The vagina draw hook or speculum exposes the cervix, the surface of the cervix is wiped dry by a dry cotton ball after the iodophor is disinfected, the Lugol iodine solution marks the pathological change range of the cervix, the mixed solution of the vasoconstrictor and 1% lidocaine is locally injected into the cervix, or the descending branch of the uterine artery is sewed by silk threads at 3 and 9 points of the cervix to prevent bleeding. Allis forceps are used for fixing cervical tissues, a scalpel/electrotome is used for carrying out taper resection 5mm away from an iodine non-staining area, the angle of the scalpel needs to be towards the cervical canal, and a cervical dilator can be placed in the cervical opening to indicate the direction of the cervical canal. After the cutting, heat coagulation or suture wound surface hemostasis can be adopted. In the operation, the marginal tissues of the excision specimen are prevented from being damaged by electric cauterization so as to avoid influencing pathological diagnosis. After effective hemostasis, the wound surface can be filled with gauze for hemostasis, and the gauze is taken out within 24 h.

In the existing cervical conization operation, only one kind of Allis forceps is used for fixing the cervix, and no specific cervical forceps which can fix and measure the depth of the cervical canal at the same time is available. Disadvantages during current surgical procedures include:

1) The Allis needs to clamp different cervix parts repeatedly or clamp the surface of the cervix simultaneously, the Allis is easy to fall off in the operation and is easy to damage and tear cervix tissues in the process of repeatedly grabbing different positions, and the Allis influences the operation visual field and the operation space to a great extent;

2) The operation range is too large or too small due to the fact that the cervical canal depth cannot be clearly cut, the cervix is easily damaged due to too large operation, much bleeding exists, bleeding is difficult to stop, the cervical canal is shortened, abortion and premature delivery are caused due to cervical insufficiency, and the like;

3) The uterine dilator is easy to fall off in the operation process, and the adhesion of the cervical canal cannot be effectively prevented;

4) The width and length of the excised specimen cannot be accurately measured and recorded after the operation, which causes troubles to the evaluation of the disease condition in the future and the evaluation of the cervical function in the second pregnancy.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a novel built-in type cervical clamp has been designed to cervical toper excision operation, and this cervical clamp can be fixed in the cervical canal by oneself and carry out the tractive to be provided with the scale of measurable quantity cervical canal degree of depth, be favorable to the cervical of operation in-process fixed, the calibration of cervical canal degree of depth, standardized standardization excision cervical pathological change scope, avoid too much destruction cervical tissue etc. be a cervical clamp that is favorable to each step optimization among the operation process.

The utility model discloses a built-in cervical clamp for a conization resection operation of cervix, which comprises a hollow probe; a connecting rod penetrating through the hollow probe is arranged in the hollow probe, and one end of the connecting rod is provided with a telescopic fixing structure; the maximum diameter of the telescopic fixing structure can be changed along with the movement of the connecting rod; scales are arranged at any one end or two ends of the hollow probe and/or the connecting rod.

Preferably, the hollow probe comprises an outer layer hollow tube and an inner layer hollow tube, and the two hollow tubes can move relatively along the axial direction. The one end that flexible fixed knot structure was kept away from to inlayer hollow tube is provided with the scale, and the cavity probe still is provided with the activity buckle of adjusting the scale, can fix outer hollow tube in selected scale position.

Preferably, the maximum range of the scale is no more than 3cm.

Preferably, the scale has an accuracy of 0.1cm.

Preferably, the length of the hollow probe is 30-35cm.

Preferably, the telescopic fixing structure is composed of a plurality of folding rods, one end of each folding rod is connected with the top end of the connecting rod, and the other end of each folding rod is connected with the hollow probe.

Preferably, the folding bar comprises two support bars and a movable shaft connecting the two support bars.

Preferably, the hollow probe and/or the connecting rod are made of metal.

Compared with the prior art, the utility model has the advantages of built-in cervical clamp:

1) The cervix uteri is fully fixed, the diameter of the telescopic fixing structure of the built-in cervical clamp can be adjusted through the connecting rod, so that the device is fixed in the cervix uteri, the adhesion of the postoperative cervix uteri is reduced, the injury and bleeding of mucosa on the surface of the cervix uteri are reduced, and the surrounding cervix uteri tissues are not required to be clamped repeatedly;

2) In the operation process, the direction of the built-in cervical clamp can be pulled, so that the cervical conization angle can be conveniently, rapidly and freely converted, the cutting edges with different thicknesses are avoided, cervical tissues are completely resected to the greatest extent, and fragments are prevented from being resected;

3) The cervical taper resection can be adjusted according to the scales on the built-in cervical forceps according to the different diffusion degrees and transformation areas of CIN graded lesion, the length of the conical top of the cervical taper resection can be adjusted, the lesion part can be resected in a standardized and precise operation, the incidence rate of multiple resection and missed resection can be effectively reduced, and unnecessary trauma and bleeding of the operation can be reduced;

4) Each item diameter of conization sample can accurately be measured and recorded to the scale that built-in type cervical clamp set up, has very big meaning to the relevant problem aassessment of the processing of postoperative complication, postoperative follow-up visit and postoperative pregnancy.

Drawings

FIG. 1 is a schematic structural view of the internal cervical clamp of the present invention in a contracted state;

FIG. 2 is a schematic structural view of the open/close state of the internal cervical clamp of the present invention;

wherein: 1 is a telescopic fixed structure; 2 is a hollow probe; 3 is a scale; 4 is a connecting rod; and 5 is a movable buckle.

Detailed Description

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the utility model, the bottom end and the tail end refer to one end of the built-in cervical clamp close to the human body when in use; the top and the top end refer to one end of the built-in cervical clamp far away from the human body when in use.

The structure of the built-in cervical clamp mainly comprises: a hollow probe; a connecting rod penetrating through the hollow probe is arranged in the hollow probe, and one end of the connecting rod is provided with a telescopic fixing structure; the maximum diameter of the telescopic fixing structure can be changed along with the movement of the connecting rod; and scales are arranged at any one end or two ends of the hollow probe and/or the connecting rod.

The hollow probe of the utility model is a long probe with about 30-35cm, which can be used as a uterine dilator to reduce the adhesion of the cervical canal after operation. The utility model discloses a hollow probe among some embodiments adopts the design of double-deck hollow tube, and outer hollow tube can slide from top to bottom relative inlayer hollow tube to the relative position of inlayer hollow tube in the accessible activity buckle is fixed. The bottom end (opposite direction of the telescopic fixing structure) of the inner layer hollow tube is marked with scales, for example, 3cm is taken as a measuring range, and 0.1cm is taken as precision, so that the cutting can be finely performed. In other alternatives, the measurement range and the precision can be adjusted according to actual conditions. The lower edge position of the outer layer hollow tube can be fixedly aligned to the scale to be selected through the movable buckle.

In another design of scales, in addition to the scales marked at the bottom end of the inner layer hollow tube, the scales are marked at the top end of the inner layer hollow tube, and the scales are marked so that the scale numbers indicated by the upper edge of the outer layer hollow tube in the top end direction are the same as the scale numbers indicated by the lower edge part of the outer layer hollow tube in the bottom end direction. For example, when the upper edge of the outer layer hollow tube is at the 3cm scale position, the lower edge is also at the 3cm scale position.

The telescopic fixing structure is used for fixing the cervical clamps in the cervical canal, and can complete the transformation from the contraction form to the opening and closing form by the connecting rod sliding up and down in the hollow probe. The utility model discloses an among some embodiments, what flexible fixed knot structure adopted is a folding rod structure, and the folding rod includes two branches and connects the loose axle of two branches, connects the top of connecting rod with a plurality of folding rod one ends, and the top of cavity probe is connected to one end. When the connecting rod slides towards the top of the hollow probe, the distance between the top of the hollow probe and the top of the connecting rod is longer, and the folding rod is straightened to be in a bundling state. When the connecting rod slided to cavity probe bottom direction, the distance at cavity probe top and connecting rod top shortened, and the folding rod appeared folding to change flexible fixed knot and construct the width of radial position, become the state that opens and shuts promptly, flexible fixed knot constructs under this state can accomplish the fixed to the cervical canal.

It should be emphasized that the folding bar structure is only one possible mode of the telescopic fixing structure, and other equivalent technical features can be used to achieve similar effects, such as a spring structure in the radial direction. One end of the radial spring is fixed on the connecting rod, and the other end is a flexible end. The spring is contracted in the hollow probe under the state that the cervical canal is not fixed. By moving the connecting rod towards the upper end, the spring moves with it out of the hollow probe, thereby forming a radial width.

The utility model provides a use method of built-in type cervical clamps is, spreading the piece of cloth, putting into and peeping the external vagina conventional disinfection, cloudy formula, exposes preparation work such as cervix, predicts the operation excision scope according to the state of an illness to fix the probe at corresponding scale through movable buckle family, be in under the condition of the state of restrainting with the probe and go deep into the cervical canal at flexible fixed knot structure. When the probe reaches the corresponding operation position, the connecting rod is moved to change the telescopic fixing structure into an open-close state to fix the cervical canal, and the cervix is integrally pulled outwards to perform the conization resection.

Because in the process of cervical conization, the operative resection range is mainly determined by the difference of transformation zone types and cervical lesion grades. Typically, type I excision is used for the type 1 transformation region, and the excision length is 7-10 mm; type II excision is used for the type 2 transformation area, and the length of excision is 10-15 mm; type III excision was used for the type 3 transformation zone, the length of excision was 15-25 mm. Cervical orifice injury, cervical elastic fiber and myofiber tissue fracture and loss caused by the cervical conization can cause cervical shortening, cervical orifice relaxation and cervical bearing capacity reduction, so that cervical insufficiency is caused, late-stage abortion, premature birth and premature rupture of fetal membranes are closely related to cervical insufficiency, and various research data show that the higher the resection length, namely the cone height, the higher the premature birth risk. Regardless of the type of procedure used, the type of ablative treatment (type i, type ii, type iii) must be recorded in a fully standardized manner, with the circumference (the circumference of the ablative specimen), length, and thickness (from the cervical stromal margin to the surface of the ablative specimen) of the conization specimen being measured and recorded. The measurement and recording are also required for the specimen that is cut after the repair. The existing surgical kit instruments have no ruler, and the surgical resection range is usually the rough size estimation of the operator, which causes difficulty in the evaluation of the disease condition after the day, especially the evaluation of the related problems of the young patients who require to have birth and are pregnant again, such as infertility, cervical insufficiency, early abortion and yield, and the like.

The utility model provides a built-in type cervical clamps can avoid the cervical clamps to drop, and when the cervical gluing scheduling problem, its cervical fixed knot structure has combined the effect of expanding the excellent uterus and is convenient for the doctor to adjust the tapering to equidirectional tractive cervix in the operation to reduce unevenness's incisal margin, and then reduce the interference of interpreting pathological sample result.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A built-in cervical clamp special for a conization resection operation of cervix uteri is characterized by comprising a hollow probe; a connecting rod penetrating through the hollow probe is arranged in the hollow probe, and one end of the connecting rod is provided with a telescopic fixing structure; the maximum diameter of the telescopic fixing structure can be changed along with the movement of the connecting rod;

scales are arranged at any one end or two ends of the hollow probe and/or the connecting rod.

2. The internal cervical clamp according to claim 1, wherein the hollow probe comprises an outer hollow tube and an inner hollow tube, and the inner and outer hollow tubes can move relatively to each other along the axial position; the scale is arranged at one end, far away from the telescopic fixing structure, of the inner-layer hollow probe tube, and the scale position, relative to the inner-layer hollow tube, of the outer-layer hollow tube is fixed through a movable buckle.

3. The internal cervical clamp according to claim 1, wherein the maximum range of the scale is no more than 3cm.

4. An internal cervical clamp according to claim 1 or 3, wherein the scale has a precision of 0.1cm.

5. The internal cervical clamp according to claim 1, wherein the hollow probe has a length of 30-35cm.

6. The internal cervical clamp according to claim 1, wherein the telescopic fixing structure is composed of a plurality of folding rods, one end of each folding rod is connected with the top end of the connecting rod, and the other end of each folding rod is connected with the hollow probe.

7. The internal cervical clamp according to claim 6, wherein the folding bar comprises two struts and a movable shaft connecting the two struts.

8. The internal cervical clamp according to claim 1, wherein the hollow probe and/or the connecting rod are made of metal.

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