CN219440463U - Pin fixer - Google Patents

Abstract

The utility model discloses an inserting needle fixer, which belongs to the technical field of vaginal treatment and comprises a fixer body and a fixing sleeve, wherein the fixing sleeve is detachably connected to one end of the fixer body, the fixer body comprises a rod body, a guide head, a first inserting hole, a second inserting hole and a through hole, one end of the rod body is connected with the fixing sleeve, the other end of the rod body is connected with the guide head, a plurality of first inserting holes penetrate through one part of the rod body and the guide head along the axial direction of the rod body, the second inserting holes penetrate through the other part of the guide head, the through hole is arranged in the center of the fixer body, the fixing sleeve comprises a fixing hole and a plurality of third inserting holes, the fixing hole and the through hole are coaxially arranged, the diameter of the fixing hole is smaller than that of the through hole, the third inserting holes are respectively opposite to the first inserting holes and the second inserting holes, the range of the inserting needles is enlarged, the inserting needle adjusting difficulty of the inserting needles is reduced, and accordingly the radiation treatment difficulty is reduced.

Description

Pin fixer

Technical Field

The utility model relates to the technical field of vaginal treatment, in particular to an insertion needle fixer.

Background

Cervical cancer and vaginal cancer are the most common gynecological tumor diseases clinically, radiotherapy is a main treatment means of cervical cancer and vaginal cancer, a radioactive source can directly enter a focus area by adopting an inserting needle as an applicator, the inserting needle is a needle with a closed front end, an internal cavity provides a channel for the radioactive source to enter, the stay time of the radioactive source is controlled, the tumor target area reaches the prescribed dose, and meanwhile, the dose of organs at risk is not too high, so that the treatment effect is ensured and normal tissues are protected. Because the insertion needle can go deep into the focus, the cervical cancer treatment device has the effects of being minimally invasive, efficient and low in pain, becomes a main technical means of cervical cancer radiotherapy, and can be used for radiotherapy of cervical cancer, vaginal cancer and postoperative vaginal stump cancer.

The head of the existing insertion needle fixer is not suitable for the cervical lesion irradiation surface, and the insertion needle cannot reach some areas, so that the radiotherapy dosage is too low; in addition, the guide channels of the column body are few, the number and the range of needle supplementing channels are limited when the needle is regulated under the CT visual angle, the operation is not flexible and convenient under certain conditions, the time and the labor are wasted, and the pain of a patient is increased.

Disclosure of Invention

The utility model aims to provide a fixing device for inserting and planting needles, which solves the problems of uncomfortable distribution of inserting and planting needles in cervical lesion areas, uneven irradiation, insufficient needle distribution range and inconvenient adjustment after needle distribution.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a contact pin fixer, includes fixer body and fixed cover, fixed cover detachably connects on the one end of fixer body, the fixer body includes the body of rod, guide head, first contact hole, second contact hole and logical ware hole, the one end of the body of rod with the fixed cover links to each other, and the other end with the guide head links to each other, follows the axis direction of the body of rod, a plurality of first contact hole runs through the body of rod with a part of guide head, the second contact hole pierces through another part on the guide head, the ware hole sets up the center of fixer body, the fixed cover includes fixed orifices and a plurality of third contact hole, the fixed orifices with the coaxial setting of ware hole, just the diameter of fixed orifices is less than the diameter of ware hole, a plurality of third contact hole respectively with first contact hole and second contact hole are relative.

The first inserting holes and the second inserting holes are randomly distributed on the guide head, and the third inserting holes are smaller than the first inserting holes and the second inserting holes, so that the outline of the needle-laying surface is adjusted to be more suitable, the scope of needle-laying is enlarged, and the adjusting scope of the inserting needles is also increased.

The fixed cover still includes fixed cover body, fixed cover body includes arc portion, waist shape portion and plane portion, arc portion sets up one side of fixed cover body, waist shape portion inwards sunken with arc portion links to each other, plane portion set up on the fixed cover body with opposite side that arc portion is relative, easy to assemble the contact pin fixer.

The fixing device comprises a fixing sleeve and is characterized in that the fixing device body further comprises a joint part, the joint part is arranged at one end of the rod body, the fixing sleeve further comprises a clamping part, the clamping part is arranged at one end of the fixing sleeve, the clamping part is clamped on the joint part, and the application range of the inserting needle fixing device is improved by combining the inserting needle fixing device.

The joint part comprises a step hole, a bulge and a plurality of clamping grooves, wherein the bulge and the clamping grooves are arranged on the inner wall of the step hole, the step hole is formed in one end of the rod body, the clamping grooves are uniformly formed in one end face of the rod body around the step hole, the clamping part comprises a plurality of raised strips, a ring table and a sliding groove, the ring table is arranged on one end of the fixed sleeve, the convex strips are uniformly formed on the outer wall of the ring table around the axis of the ring table, and the sliding groove penetrates through the ring table along the axis of the ring table, so that the connection strength and accuracy are improved.

The fixed orifices include clamping holes, via holes and connecting holes which are coaxially arranged in sequence, and the apertures of the clamping holes, the via holes and the connecting holes are sequentially increased, so that the source applying device is convenient to adjust.

The fixing sleeve is made of flexible materials, and the insertion needle is automatically fixed after being adjusted by utilizing the characteristics of the materials, so that the operation difficulty is reduced.

The fixed sleeve further comprises a fourth inserting hole, the fourth inserting hole is arranged on the fixed sleeve and surrounds the third inserting hole in a random distribution mode and is used for supplementing inserting needles and reducing stimulation and uncomfortable feeling to a patient.

The guide head comprises a guide surface and an ellipsoid, the guide surface is tangent to the surface of the rod body, the ellipsoid is arranged at the front end of the guide head, and the resistance of inserting the insertion needle fixer is reduced.

The third insertion hole is arranged as a rectangular section hole, and the adjustment angle and the adjustment range of the inserted insertion needle are enlarged.

The beneficial effects of the utility model are as follows:

(1) The insertion needle fixer comprises a fixer body and a fixing sleeve, wherein the fixer body is provided with a guide head which is mushroom-shaped, the head is larger than a rod body and can smoothly pass through a parauteri sacral belt, the guide head is also provided with a first insertion hole and a second insertion hole, the first insertion hole is arranged in the middle of the guide head, the first insertion hole penetrates through the guide head and the rod body, the second insertion hole is arranged close to the edge of the guide head and only penetrates through the guide head, and an insertion needle in the first insertion hole and the second insertion hole can enable a cervical lesion irradiation surface to be more suitable, so that the range of the insertion needle is enlarged, and an applicator can be placed in the through hole; the third insertion hole and the fourth insertion hole are formed in the fixing sleeve, the third insertion hole is opposite to the first insertion hole and the second insertion hole in the guide head, the range of the needle arrangement is increased, the insertion holes in the fixing sleeve are increased, the fixing sleeve is more flexible and convenient in adjustment, pain to a patient in needle withdrawal is reduced, the direction of the needle arrangement can be flexibly adjusted in the insertion hole, the distribution appearance of the needle arrangement is changed, and the occurrence of a placement error condition is prevented.

(2) The first insertion holes and the second insertion holes on the guide head are distributed in a random form, so that the guide head can adapt to the radiation of cervical lesions, and medical staff can conveniently adjust the positions and angles of the insertion needles to align the insertion needles with lesion areas.

(3) The fixing sleeve on the inserting needle fixer is provided with the clamping part, the fixer body is provided with the joint part, the clamping part and the joint part are buckled mutually to realize the detachable connection of the fixing sleeve, wherein the clamping part and the joint part are matched and aligned through the step hole and the annular table, the protrusion and the sliding groove which are matched on the inner wall of the step hole are used for guiding, and the clamping grooves and the protruding strips are matched to prevent the fixing sleeve and the fixer body from rotating, so that the connection accuracy and stability are improved, and the inserting needle fixer is convenient to operate.

(4) The fixing sleeve body comprises an arc-shaped part, a waist-shaped part and a plane part, the shape of the uterus opening is adapted to the shape of the uterus opening through the arc-shaped part and the plane part, the waist-shaped part is reduced to occupy the area, the needle insertion operation of medical staff is facilitated, a guide surface and an ellipsoid are further arranged on the guide head, the guide surface is tangential to the side surface of the rod body, the rod body is inserted into the vagina by the aid of the guide surface, the resistance is small, the positioning is accurate, in addition, the guide head of the ellipsoid can also smoothly enter a radiation area through the cervix, and the entrance and exit of the guide head are small in scratch on the uterus wall, so that the injury to a patient is difficult to be caused.

Drawings

FIG. 1 is an isometric view of a pin holder provided by the present utility model;

FIG. 2 is a bottom view of the pin holder of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an isometric view of a holder body provided by the present utility model;

FIG. 5 is a front view of a holder body provided by the present utility model;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is an isometric view of a retaining sleeve provided by the present utility model;

FIG. 8 is a front view of a retaining sleeve according to an embodiment of the utility model;

fig. 9 is a cross-sectional view taken along line C-C of fig. 8.

Reference numerals:

1. a holder body; 11. a rod body; 12. a guide head; 121. a guide surface; 122. an ellipsoid; 13. a passer hole; 14. a first insertion hole; 15. a joint; 151. a clamping groove; 152. a protrusion; 153. a step hole; 16. a second insertion hole; 2. a fixed sleeve; 21. a fixed sleeve body; 211. an arc-shaped portion; 212. waist-shaped part; 213. a planar portion; 22. a fixing hole; 221. a clamping hole; 222. a via hole; 223. a connection hole; 23. a third insertion hole; 24. a fourth insertion hole; 25. an engagement portion; 251. a convex strip; 252. a ring table; 253. a chute; 3. an applicator; 4. and (5) inserting a planting needle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the examples in the application, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

Example 1

As shown in fig. 1-9, an insertion needle fixer comprises a fixer body 1 and a fixing sleeve 2, wherein the fixing sleeve 2 is detachably connected to one end of the fixer body 1, the fixer body 1 comprises a rod body 11, a guide head 12, a first insertion hole 14, a second insertion hole 16 and a through hole 13, one end of the rod body 11 is connected with the fixing sleeve 2, the other end of the rod body 11 is connected with the guide head 12, a plurality of first insertion holes 14 penetrate through one part of the rod body 11 and the guide head 12 along the axial direction of the rod body 11, a second insertion hole 16 penetrates through the other part of the guide head 12, the second insertion hole 16 penetrates through one part of the guide head 12, and is positioned outside the rod body 11, the through hole 13 is arranged in the center of the fixer body 1, the fixing sleeve 2 comprises a fixing hole 22 and a plurality of third insertion holes 23, the fixing hole 22 is coaxially arranged with the through hole 13, the diameter of the fixing hole 22 is smaller than that of the guide head 13, the third insertion hole 23 is coaxially arranged with the first insertion hole 14 and the third insertion hole 16, and the third insertion hole 23 penetrates through one part of the guide head 12, and the other part of the guide head 12 is penetrated through the first insertion hole 14 and the second insertion hole 14.

Preferably, the first insertion holes 14 and the second insertion holes 16 are randomly distributed on the guide head 12 and are arranged in a discrete manner to expand the range and angle of the needle arrangement, so that the radiation to the isolated lesion area is satisfied, the radiation dose can be uniform, the effect of radiation treatment to cervical lesions is improved, and the device is suitable for patients undergoing radical radiotherapy.

Preferably, the fixing sleeve 2 further includes a fixing sleeve body 21, the fixing sleeve body 21 includes an arc portion 211, a waist-shaped portion 212 and a plane portion 213, the arc portion 211 is disposed on one side of the fixing sleeve body 21 and is adapted to Gong Kouxing, the waist-shaped portion 212 is concavely connected with the arc portion 211, a space is reserved for the operation of the pin, the plane portion 213 is disposed on the other side of the fixing sleeve body 21 opposite to the arc portion 211, and the plane portion 213 is on the same side as the guide surface 121 and can serve as a reference for installing the fixing sleeve 2.

Preferably, the fixing device body 1 further comprises a joint part 15, the joint part 15 is arranged on one end of the rod body 11, the fixing sleeve 2 further comprises a clamping part 25, the clamping part 25 is arranged on one end of the fixing sleeve 2, one part of the clamping part 25 is buckled on the joint part 15, the other part of the clamping part 25 is in expansion connection with the joint part 15, and the accuracy and the firmness of the connection between the fixing device body 1 and the fixing sleeve 2 are improved.

The engaging portion 15 includes a step hole 153, a protrusion 152 and a plurality of clamping grooves 151 disposed on an inner wall of the step hole 153, the step hole 153 is disposed on one end of the rod 11, the plurality of second clamping grooves 151 are uniformly disposed on one end surface of the rod 11 around the step hole 153, the clamping portion 25 includes a plurality of protruding strips 251, a ring table 252 and a sliding groove 253, the ring table 252 is disposed on one end of the fixing sleeve 2, the plurality of protruding strips 251 are uniformly disposed on an outer wall of the ring table 252 around an axis of the ring table 252, the sliding groove 253 penetrates the ring table 252 along the axis of the ring table 252, the depth of the step hole 153 is greater than the height of the ring table 252, the step hole 153 is in interference fit with the ring table 252, the clamping grooves 151 are in one-to-one correspondence with the protrusions 251, the relative rotation between the fixing sleeve 2 and the fixing body 1 is prevented, and the protrusion 152 is slidingly connected into the sliding groove 253 for determining the relative positions of the fixing sleeve 2 and the fixing body 1.

Preferably, the fixing hole 22 includes a clamping hole 221, a via hole 222 and a connecting hole 223 which are coaxially arranged in sequence, the diameters of the clamping hole 221, the via hole 222 and the connecting hole 223 are sequentially increased, the fixing hole 22 is used for fixing the applicator 3, the diameter of the clamping hole 221 is smaller than that of the Yu Shiyuan applicator 3, the applicator 3 is pressed by means of elasticity of a material, the via hole 222 is used for passing through the applicator 3, the connecting hole 223 is located in the annular table 252, and a space is reserved for expansion fit between the annular table 252 and the step hole 153.

Preferably, the fixing sleeve 2 is made of flexible material, the flexible material is silica gel or gel, and the biocompatibility, good elasticity and skin-friendly surface are utilized to make the fixing sleeve 2 have small irritation to human body during installation, and after the insertion needle is completed, the insertion needle can be fixed by means of self elasticity.

Preferably, the fixing sleeve 2 further comprises fourth inserting holes 24, the fourth inserting holes 24 are formed in the fixing sleeve 2 and surround the third inserting holes 23 in a random distribution mode, the fourth inserting holes 24 are independently used as guiding, the range of needle arrangement is enlarged, the inserting needles 4 can be replenished at any time during CT adjustment, the stimulation to a patient caused by repeated needle-up operation is reduced, and meanwhile, the needle inserting efficiency can be improved.

Preferably, the guiding head 12 includes a guiding surface 122 and an ellipsoid 121, the guiding surface 122 is tangential to the surface of the rod body 11, the ellipsoid 121 is disposed at the front end of the guiding head 12, the guiding head 12 is in a mushroom shape, and the guiding head 12 of the ellipsoid 121 can reduce resistance when entering and exiting the uterine orifice, so that the insertion needle holder can smoothly enter the vagina and perform depth adjustment, the guiding surface 122 and a side wall of the rod body 11 form a straight surface with radian, and when the guiding head 12 enters the vagina, the surface is used as a reference surface to move, thereby reducing the overall resistance and the operation difficulty.

Preferably, the third insertion hole 23 and the fourth insertion hole 24 are provided as rectangular cross-section holes, the width of the third insertion hole 23 and the fourth insertion hole 24 is smaller than the diameter of the insertion needle 4, and the length of the third insertion hole and the fourth insertion hole is larger than the two parts of the insertion needle 4, so that the insertion needle 4 can be accurately aligned to a lesion part by conveniently adjusting the depth angle of the head of the insertion needle 4 by poking the tail part of the insertion needle 4 after the insertion needle 4 is inserted into the fixing sleeve 2.

The use process of the insertion needle fixer is as follows:

the fixing sleeve 2 is aligned with the joint part 15 on one end of the fixing device body 1 and buckled on the fixing device body 1 to form a complete inserting needle fixing device, the guide head 12 is inserted into the vagina based on the guide surface 121, the depth of the inserting needle fixing device is adjusted, then inserting needles are sequentially inserted into the first inserting hole 14 and the second inserting hole 16 through the third inserting hole 23, the position of the inserting needle 4 is checked through CT, the angle and the position of the inserting needle 4 are finely adjusted according to a lesion area, and then the inserting needle 4 is additionally inserted into the fourth inserting hole 24, so that the lesion area can be fully subjected to radioactive treatment.

Example two

The same features as those of the reference embodiment will not be described in detail, but the differences are as follows: the length of the rod body 11 is adjustable, the rod body 11 is composed of two sections which are sleeved together in a sliding way, the inserting needle fixer can be suitable for radiation treatment at different depth positions through adjusting the length of the rod body 11, and the application range of the inserting needle fixer is improved.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. An insertion needle fixer, which is characterized in that: including fixer body (1) and fixed cover (2), fixed cover (2) detachably connects on the one end of fixer body (1), fixer body (1) are including body of rod (11), guide head (12), first grafting hole (14), second grafting hole (16) and passer hole (13), the one end of body of rod (11) with fixed cover (2) link to each other, the other end with guide head (12) link to each other, follow the axis direction of body of rod (11), a plurality of first grafting hole (14) run through body of rod (11) with part of guide head (12), second grafting hole (16) are penetrated another part on guide head (12), passer hole (13) set up the center of fixer body (1), fixed cover (2) include fixed orifices (22) and a plurality of third grafting hole (23), fixed orifices (22) with passer hole (13) coaxial and a plurality of third grafting hole (22) diameter are located in the second grafting hole (16) diameter is little.

2. The insertion needle holder according to claim 1, wherein:

the first insertion holes (14) and the second insertion holes (16) are randomly distributed on the guide head (12), and the third insertion holes (23) are smaller than the first insertion holes (14) and the second insertion holes (16).

3. The insertion needle holder according to claim 2, wherein:

the fixing sleeve (2) further comprises a fixing sleeve body (21), the fixing sleeve body (21) comprises an arc-shaped portion (211), a waist-shaped portion (212) and a plane portion (213), the arc-shaped portion (211) is arranged on one side of the fixing sleeve body (21), the waist-shaped portion (212) is recessed inwards and connected with the arc-shaped portion (211), and the plane portion (213) is arranged on the other side, opposite to the arc-shaped portion (211), of the fixing sleeve body (21).

4. A pin holder according to claim 3, wherein:

the fixing device comprises a fixing sleeve (2) and is characterized in that the fixing device body (1) further comprises a joint part (15), the joint part (15) is arranged at one end of the rod body (11), the fixing sleeve (2) further comprises a clamping part (25), the clamping part (25) is arranged at one end of the fixing sleeve (2), and the clamping part (25) is clamped on the joint part (15).

5. The insertion needle holder according to claim 4, wherein:

the joint part (15) comprises a step hole (153), a protrusion (152) and a plurality of clamping grooves (151) which are formed in the inner wall of the step hole (153), the step hole (153) is formed in one end of the rod body (11), the clamping grooves (151) are uniformly formed in one end face of the rod body (11) around the step hole (153), the clamping part (25) comprises a plurality of raised strips (251), a ring table (252) and a sliding groove (253), the ring table (252) is arranged at one end of the fixed sleeve (2), the raised strips (251) are uniformly formed in the outer wall of the ring table (252) around the axis of the ring table (252), and the sliding groove (253) penetrates through the ring table (252) along the axis of the ring table (252).

6. The insertion needle holder according to claim 5, wherein:

the fixing hole (22) comprises a clamping hole (221), a via hole (222) and a connecting hole (223) which are coaxially arranged in sequence, and the diameters of the clamping hole (221), the via hole (222) and the connecting hole (223) are sequentially increased.

7. The insertion needle holder according to claim 6, wherein:

the fixing sleeve (2) is made of flexible materials.

8. The insertion needle holder according to claim 1, wherein:

the fixing sleeve (2) further comprises fourth inserting holes (24), and the fourth inserting holes (24) are formed in the fixing sleeve (2) and surround the third inserting holes (23) in a random distribution mode.

9. The insertion needle holder according to claim 8, wherein:

the guide head (12) comprises a guide surface (122) and an ellipsoid (121), the guide surface (122) is tangential to the surface of the rod body (11), and the ellipsoid (121) is arranged at the front end of the guide head (12).

10. The insertion needle holder according to any one of claims 1-9, wherein:

the third insertion hole (23) is arranged as a rectangular section hole.