CN219354096U

CN219354096U - Directional headstock for craniocerebral puncture

Info

Publication number: CN219354096U
Application number: CN202222752782.7U
Authority: CN
Inventors: 冯洁
Original assignee: Xiangya Hospital of Central South University
Current assignee: Xiangya Hospital of Central South University
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-07-18
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a directional headstock for craniocerebral puncture, which relates to the technical field of medical auxiliary appliances, and comprises the following components: the positioning frame is of a semi-annular arch structure; the two fixing bases are respectively and fixedly arranged at two ends of the positioning frame; the skull fixing frame is arranged on the fixing bases at the two sides; the sliding seat, the sliding through hole has been offered in the running through of sliding seat middle part, the sliding seat passes through sliding through hole sliding connection on the locating rack, top fixed mounting has locking bolt on the sliding seat, right side board is installed on the sliding seat right side, a accommodation space is constituteed with the sliding seat to right side board, the inside activity of accommodation space is equipped with anti-skidding clamp plate. The utility model has the advantages that: through setting up anti-skidding clamp plate and increasing the frictional resistance between sliding seat and the locating rack, the condition that avoids the sliding seat to take place to slide takes place, very big assurance directional headstock's location precision has improved directional headstock's use convenience.

Description

Directional headstock for craniocerebral puncture

Technical Field

The utility model relates to the technical field of medical auxiliary appliances, in particular to a directional headstock for craniocerebral puncture.

Background

Brain biopsy is also a common operation to stereotactic technology, and when CT or nuclear magnetic resonance is performed, it is not possible to accurately determine whether a tumor is benign or malignant, and then a treatment plan of the next step needs to be determined by using the stereotactic technology, and the stereotactic system can obtain a brain tissue sample for diagnosis only by using a biopsy needle to reach deep brain, so that the method has small damage and high diagnosis rate and is widely applied in clinic.

The brain biopsy operation needs to be performed with skull puncture, needs to be assisted by using a stereotactic headstock, can be used for checking Hua Xier medical treatment in detail, can very accurately reach the nucleus or the position of the brain by setting the coordinates of a target spot, and is very helpful for the neurosurgery to accurately treat diseases.

Chinese patent document (201720695409.9) discloses a three-dimensional directional headstock for surgery, which adopts a bolt locking mode to fix a guide on a locating frame, firstly moves the guide to a target point position on the locating frame during use, then tightens a locking bolt to fix the guide, then the structure can not realize the pre-fixing of the guide, and the tightening locking bolt is stressed by the guide, so that the guide is easy to deviate along the locating frame, thereby causing inaccurate locating of the guide and inconvenient practical use.

Disclosure of Invention

In order to solve the technical problem, the technical scheme provides a directional headstock for craniocerebral puncture, which solves the problems that the prior directional headstock can not realize pre-fixing of a guide, and the guide is not positioned accurately enough due to the fact that a locking bolt is easy to deviate along a locating frame due to the fact that the guide is stressed when the locking bolt is screwed down, and is inconvenient in the practical use process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a directional head frame for craniocerebral puncture comprising:

the positioning frame is of a semi-annular arch structure;

the two fixing bases are respectively fixedly arranged at two ends of the positioning frame;

the skull fixing frame is arranged on the fixing bases at the two sides;

the sliding seat, the sliding through-hole has been seted up in the running through of sliding seat middle part, the sliding seat passes through sliding through-hole sliding connection on the locating rack, top fixed mounting has locking bolt on the sliding seat, right side board is installed on the sliding seat right side, a accommodation space is constituteed with the sliding seat to the right side board, the inside activity of accommodation space is equipped with anti-skidding clamp plate, anti-skidding clamp plate left end and the inseparable butt of locating rack, anti-skidding clamp plate right-hand member is connected with the guide post that extends to the right, the guide post right-hand member runs through the right side board and extends to right side board right side, guide post right-hand member fixedly connected with draws the piece.

Preferably, the guiding post periphery surface cover is equipped with anti-skidding spring, anti-skidding spring both ends and right side board and anti-skidding clamp plate butt, anti-skidding spring is compressed state, anti-skidding clamp plate closely butt is at the locating rack surface under anti-skidding spring elasticity effect.

Preferably, a plurality of anti-slip teeth are arranged on one side, closely abutted to the positioning frame, of the anti-slip pressing plate, and the anti-slip teeth are made of rubber materials.

Preferably, the left side fixedly connected with director mount pad of sliding seat upper end, the director mount pad is the slope setting, the axis of director mount pad points to locating rack centre of a circle direction, the director insert groove has been seted up in the sliding seat left side, director insert groove and the coaxial setting of director mount pad.

Preferably, the guide mounting seat is internally detachably provided with a separation type guide.

Preferably, the skull fixing frame comprises an adjusting sleeve rotationally connected to the left side of the fixing base and a follow-up sleeve rotationally connected to the right side of the fixing base, wherein an adjusting rod is connected to the inner thread of the adjusting sleeve, the adjusting rod extends to the inner side of the adjusting sleeve, a follow-up rod is slidably arranged in the follow-up sleeve, and the follow-up rod extends to the inner side of the follow-up sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a directional headstock with a pre-locking structure, when a sliding seat moves, an anti-slip pressing plate is pulled up through a pulling block, the anti-slip pressing plate is disconnected and abutted with a locating frame, so that the sliding seat can move conveniently, when the sliding seat moves to a target position, the pulling block is loosened, the anti-slip pressing plate can be tightly abutted to the surface of the locating frame under the action of the elastic force of an anti-slip spring, the pre-locking of the sliding seat is realized, the friction resistance between the sliding seat and the locating frame is increased through the anti-slip pressing plate, and when the sliding seat is fixed by screwing a locking bolt, the sliding seat is prevented from slipping due to the stress of the sliding seat, the locating accuracy of the directional headstock is greatly ensured, and the use convenience of the directional headstock is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of another view of the present utility model;

FIG. 3 is a schematic perspective view of a sliding seat according to the present utility model;

fig. 4 is an exploded view of the sliding seat according to the present utility model.

The reference numerals in the figures are:

1. a positioning frame; 2. a fixed base; 3. an adjusting sleeve; 4. a follower sleeve; 5. an adjusting rod; 6. a follower lever; 7. a sliding seat; 701. a guide insertion groove; 702. a guide mounting base; 703. a sliding through hole; 704. a right side plate; 8. a split guide; 9. a locking bolt; 10. an anti-slip pressure plate; 1001. a guide post; 1002. pulling blocks; 1003. anti-slip teeth; 11. an anti-slip spring.

Description of the embodiments

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 4, an orientation head for craniocerebral puncture, comprising:

the positioning frame 1 is of a semi-annular arch structure;

the two fixing bases 2 are arranged, and the two fixing bases 2 are respectively and fixedly arranged at two ends of the positioning frame 1;

the skull fixing frame is arranged on the fixing bases 2 on the two sides and comprises an adjusting sleeve 3 rotatably connected to the fixing bases on the left side and a follow-up sleeve 4 rotatably connected to the fixing bases on the left side, an adjusting rod 5 is connected to the inside of the adjusting sleeve 3 in a threaded mode, the adjusting rod 5 extends to the inner side of the adjusting sleeve 3, a follow-up rod 6 is slidably arranged in the follow-up sleeve 4, the follow-up rod 6 extends to the inner side of the follow-up sleeve 4, when the skull fixing frame is used, the tail ends of the adjusting rod 5 and the follow-up rod 6 are firstly connected with a skull fixing head sleeve, and then the position of the positioning frame 1 is adjusted through rotating the adjusting sleeve 3, so that the whole directional head frame coincides with a set coordinate system;

the sliding seat 7, sliding through hole 703 has been seted up in the middle part of sliding seat 7, sliding seat 7 passes through sliding through hole 703 sliding connection on locating rack 1, top fixed mounting has locking bolt 9 on the sliding seat 7, right side board 704 is installed on sliding seat 7 right side, right side board 704 and sliding seat 7 constitute a accommodation space, the inside activity of accommodation space is equipped with anti-skidding clamp plate 10, anti-skidding clamp plate 10 right-hand member is connected with the guide post 1001 that extends to the right, the guide post 1001 right-hand member runs through right side board 704 and extends to right side board 704 right side, guide post 1001 right-hand member fixedly connected with pull block 1002, guide post 1001 periphery surface cover is equipped with anti-skidding spring 11, anti-skidding spring 11 both ends and right side board 704 and anti-skidding clamp plate 10 butt, anti-skidding spring 11 is compressed state, anti-skidding clamp plate 10 is provided with a plurality of tooth 1003 under anti-skidding spring 11 elasticity effect, anti-skidding tooth 1003 is made by rubber, during the use, pull up clamp plate 1003 and locating rack 1 break slide seat 7 take place the elastic force to make the anti-skidding clamp plate 1002 move, can realize the anti-skidding clamp plate 10 and take place the tight contact at the locating rack, can realize the anti-skidding, the anti-skidding is made of anti-skidding clamp plate 10 and can realize the anti-skidding is made at the anti-skidding, the anti-skidding is made of convenient material, the anti-skidding material is more convenient, can move the anti-skidding and the face is made into the anti-skidding seat 10, the anti-skidding material is made into the anti-skidding material and the anti-skidding seat 10 and the anti-skidding material is moved the contact.

The left side fixedly connected with director mount pad 702 of sliding seat 7 upper end, director mount pad 702 is the slope setting, the directional locating rack 1 centre of a circle direction of axis of director mount pad 702, director insert groove 701 has been seted up in sliding seat 7 left side, director insert groove 701 and the coaxial setting of director mount pad 702, the inside detachable of director mount pad 702 installs disconnect-type director 8, disconnect-type director 8 is dismantled according to actual operation demand and is changed multiple different specifications, for example Fr10, fr12, fr14, fr16, fr18, disconnect-type director 8 is used for guiding the piercing tube of different models, restriction piercing direction is directional locating rack 1 centre of a circle direction all the time.

The application process of the utility model is as follows: firstly, the tail ends of an adjusting rod 5 and a follower rod 6 are connected with a skull fixing head sleeve, then the position of a locating frame 1 is adjusted through rotating an adjusting sleeve 3, the whole directional head frame is overlapped with a set operation coordinate system, then the locating frame 1 is rotated, meanwhile, an anti-slip pressing plate 1003 is pulled up through a pulling block 1002, the anti-slip pressing plate 1003 is disconnected and abutted with the locating frame 1 to move a sliding seat 7, a separated guide 8 points to a target position, then the pulling block 1002 is loosened, an anti-slip pressing plate 10 can be tightly abutted on the surface of the locating frame under the elastic force of an anti-slip spring 11, the pre-locking of the sliding seat is realized, then a locking bolt 9 is screwed to fix the position of the sliding block 7, and then a puncture tube is guided to conduct skull puncture operation through the separated guide 8.

In summary, the utility model has the advantages that: through setting up anti-skidding clamp plate and increasing the frictional resistance between sliding seat and the locating rack, the condition that avoids the sliding seat to take place to slide takes place, very big assurance directional headstock's location precision has improved directional headstock's use convenience.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A directional head for craniocerebral puncture comprising:

the positioning frame (1), the positioning frame (1) is of a semi-annular arch structure;

the two fixing bases (2) are arranged, and the two fixing bases (2) are respectively and fixedly arranged at two ends of the positioning frame (1);

the skull fixing frame is arranged on the fixing bases (2) at the two sides; it is characterized in that the method comprises the steps of,

slide seat (7), slide seat (7) middle part has run through and has been seted up sliding through hole (703), slide seat (7) are through sliding through hole (703) sliding connection on locating rack (1), top fixed mounting has locking bolt (9) on slide seat (7), right side board (704) are installed on slide seat (7) right side, right side board (704) and slide seat (7) constitute a accommodation space, the inside activity of accommodation space is equipped with anti-skidding clamp plate (10), anti-skidding clamp plate (10) left end and locating rack (1) closely butt, anti-skidding clamp plate (10) right-hand member is connected with guide post (1001) that extends to the right side, guide post (1001) right-hand member runs through right side board (704) and extends to right side board (1001) right side, guide post (1001) right-hand member fixedly connected with draws piece (1002).

2. The directional headstock for craniocerebral puncture according to claim 1, wherein the outer peripheral surface of the guide column (1001) is sleeved with an anti-slip spring (11), two ends of the anti-slip spring (11) are abutted with the right side plate (704) and the anti-slip pressing plate (10), the anti-slip spring (11) is in a compressed state, and the anti-slip pressing plate (10) is tightly abutted to the surface of the positioning frame (1) under the action of the elastic force of the anti-slip spring (11).

3. The directional head frame for craniocerebral puncture according to claim 2, wherein a plurality of anti-slip teeth (1003) are arranged on one side of the anti-slip pressing plate (10) closely abutted with the positioning frame (1), and the anti-slip teeth (1003) are made of rubber materials.

4. The directional head frame for craniocerebral puncture according to claim 3, wherein the left side of the upper end of the sliding seat (7) is fixedly connected with a guide installation seat (702), the guide installation seat (702) is obliquely arranged, the axis of the guide installation seat (702) points to the center direction of the locating frame (1), a guide insertion groove (701) is formed in the left side of the sliding seat (7), and the guide insertion groove (701) and the guide installation seat (702) are coaxially arranged.

5. The directional head for craniocerebral puncture according to claim 4, wherein a separate guide (8) is removably mounted within the guide mount (702).

6. The directional head frame for craniocerebral puncture according to claim 1, wherein the skull fixing frame comprises an adjusting sleeve (3) rotatably connected to the left side of the fixing base and a following sleeve (4) rotatably connected to the right side of the fixing base, an adjusting rod (5) is connected to the inner thread of the adjusting sleeve (3), the adjusting rod (5) extends to the inner side of the adjusting sleeve (3), a following rod (6) is slidably mounted in the following sleeve (4), and the following rod (6) extends to the inner side of the following sleeve (4).