Auxiliary fixator for cervical biopsy

Abstract

The invention aims to provide an auxiliary fixator for cervical biopsy, and relates to the technical field of medical instruments, a fixed handle is fixedly arranged behind a forceps rod, a movable handle is rotatably arranged behind the forceps rod, a chuck is rotatably arranged in front of the forceps rod, and a sleeve is movably sleeved on the forceps rod; when in use, the sleeve sleeves the chuck, so that the chuck can enter the vagina smoothly; a rotating shaft of the clamping head is controlled to rotate through an adjuster rotationally arranged on the forceps rod, and the clamping head is driven to rotate by 90 degrees; the movable handle is rotated to drive the movable plate of the clamping head to be opened and aligned with the cervix uteri root, the movable handle is rotated to drive the movable plate of the clamping head to be closed to be matched with the fixing plate to clamp and fix the cervix uteri root, an acting point exists when the right hand conducts biopsy, diseased tissue can be grabbed more conveniently, and more tissue can be taken conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a cervical biopsy auxiliary fixator. Background Art

[0002] Colposcopic biopsy is a commonly used gynecological examination method, mainly used to detect lesions in the vagina and cervix. The main purpose of colposcopic biopsy is to observe the surface of the vagina and cervix, select suspicious lesions, and then take a small part of the tissue for pathological examination to determine whether there is lesion or cancer. This is of great significance for the early detection and treatment of gynecological diseases such as cervical cancer.

[0003] At present, it is inconvenient to obtain samples from the cervix during colposcopy biopsy. In many cases, due to limited vaginal space, biopsy can only be performed with the right hand. In this way, there is no fulcrum during biopsy, the sampling site is prone to slippage, and the best lesion tissue cannot be grasped, or less tissue is obtained, resulting in unsatisfactory pathological section preparation. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides the following technical solutions: A cervical biopsy auxiliary fixator comprises a clamp rod and an elastic element, wherein a fixed handle and a rotatable movable handle are respectively fixedly arranged at the rear of the clamp rod; a chuck is rotatably arranged in front of the clamp rod, and an adjuster is rotatably arranged on the clamp rod to control the rotation of the chuck; the chuck comprises a fixed plate, a movable plate, and a rotating shaft, the rotating shaft is rotatably connected to the clamp rod, the fixed plate is fixedly installed on the rotating shaft, the movable plate is rotatably installed on the rotating shaft, and the rotation of the movable plate is controlled by the rotation of the movable handle.

[0005] Furthermore, a driving rod is slidably arranged in the clamp rod, the front end of the driving rod cooperates with the rotating shaft, and the rear end of the driving rod cooperates with the regulator. The driving rod is controlled to slide and drive the rotating shaft to rotate by rotating the regulator, thereby driving the chuck to rotate.

[0006] Furthermore, the regulator includes a knob, a connecting rod, and a connecting piece. The connecting piece is rotatably installed in the clamp rod, and the connecting piece includes gear 2 and bevel gear 1 that are coaxially fixedly connected; the connecting rod is rotatably installed on the clamp rod, and one end of the connecting rod is fixedly provided with bevel gear 2 that cooperates with bevel gear 1; the knob is movably inserted into the other end of the connecting rod, and the knob is connected to the clamp rod through an elastic element.

[0007] Furthermore, a toothed structure is provided on the clamp rod at a position corresponding to the knob, and a toothed structure is provided at one end of the knob. Under the action of the elastic element, the toothed structure of the knob cooperates with the toothed structure of the clamp rod to limit the rotation of the knob.

[0008] Furthermore, a gear 1 is coaxially fixedly arranged on the rotating shaft, and a rack 1 cooperating with the gear 1 is arranged at the front end of the driving rod; a rack 2 cooperating with the gear 2 is fixedly arranged at the rear end of the driving rod.

[0009] Furthermore, an installation cavity is provided in the clamp rod, and an outer cylinder, an inner cylinder and a through-hole disc are provided in the installation cavity. The outer cylinder is fixedly installed in the installation cavity, one end of the inner cylinder is movably inserted into the outer cylinder, and the through-hole disc is rotatably installed on the other end of the inner cylinder, and is connected to the installation cavity through an elastic element through the disc; a spiral groove is provided on the wall of the outer cylinder, and a guide column is fixedly provided on the outer wall of the inner cylinder, and the guide column slides along the spiral groove, and when the inner cylinder slides, the inner cylinder is rotated by the action of the spiral groove.

[0010] Furthermore, a pull rope is provided in the clamp rod, one end of the pull rope is fixedly connected to the inner wall of the through-hole disc, and the other end is connected to the movable handle. The pull rope is pulled by rotating the movable handle to pull the inner cylinder and the through-hole disc to slide, so that the inner cylinder rotates.

[0011] Furthermore, one end of the movable plate is rotatably connected to the rotating shaft through a fixed fan-shaped gear, and the axis of the fan-shaped gear is perpendicular to the axis of the rotating shaft; a transmission rod is rotatably installed in the clamp rod, and a gear three that cooperates with the fan-shaped gear is fixedly provided at the front end of the transmission rod, and the rear end of the transmission rod is coaxially fixedly connected to the inner cylinder, and the rotation of the inner cylinder drives the transmission rod to rotate, thereby driving the rotation of the movable plate.

[0012] Furthermore, the movable handle is connected to the fixed handle via an elastic element, an arc-shaped limiting rod is fixedly arranged on the fixed handle, a toothed structure is provided on the limiting rod, and a clamping block is slidably arranged on the movable handle; one end of the clamping block is connected to the movable handle via an elastic element, and the other end cooperates with the toothed structure of the limiting rod to limit the rotation and expansion of the movable handle.

[0013] Furthermore, a sleeve is movably sleeved on the clamp rod.

[0014] Furthermore, the length of the clamp rod is 18-25 cm, one end of the movable plate and the fixed plate is a hollow oval structure, and the length of the movable plate and the fixed plate is 3.5-4 cm.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects: The invention has a fixed handle and a rotatable handle fixedly arranged at the rear of the clamp rod, a chuck rotatably arranged at the front of the clamp rod, and a sleeve movably sleeved on the clamp rod; when in use, the sleeve sleeves the chuck, so that the chuck can smoothly enter the vagina; The rotation of the chuck's shaft is controlled by rotating the regulator set on the clamp rod, driving the chuck to rotate to 90 degrees; the movable plate of the chuck is driven to open by rotating the movable handle and align it with the root of the cervix, and the movable plate of the chuck is driven to close by rotating the movable handle to clamp and fix the root of the cervix, so that the right hand has a force point when performing a biopsy, which makes it more convenient to grasp the diseased tissue and facilitate the acquisition of more tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a top view and cross-sectional structure of the present invention; Figure 3 It is an enlarged schematic diagram of the top view of the cross-sectional structure A of the present invention; Figure 4 It is an enlarged schematic diagram of the top view of the cross-sectional structure B of the present invention; Figure 5 It is an enlarged schematic diagram of the top view of the cross-sectional structure C of the present invention; Figure 6 It is a schematic diagram of the front-end structure of the present invention; Figure 7 This is an enlarged schematic diagram of the front end structure D of the present invention; Figure 8 It is a schematic diagram of the chuck of the present invention; Fig. 9 It is a schematic diagram of the side cross-sectional structure of the present invention; Fig.10 It is an enlarged schematic diagram of the side cross-sectional structure E of the present invention.

[0017] In the figure: clamp rod-1, fixed handle-11, movable handle-12, block-121, mounting cavity-13, outer cylinder-131, inner cylinder-132, through-hole disc-133, sleeve-2, adjuster-3, knob-31, connecting rod-32, connecting piece-33, limiting rod-4, elastic element-5, chuck-6, fixed plate-61, movable plate-62, rotating shaft-63, driving rod-7, transmission rod-8, pull rope-9. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0019] See also Figure 1-10A cervical biopsy auxiliary fixator comprises a clamp rod 1 and an elastic element 5. A fixed handle 11 and a rotatable movable handle 12 are fixedly arranged at the rear of the clamp rod 1; a chuck 6 is rotatably arranged in front of the clamp rod 1, and an adjuster 3 is rotatably arranged on the clamp rod 1 to control the rotation of the chuck 6; the chuck 6 comprises a fixed plate 61, a movable plate 62, and a rotating shaft 63. The rotating shaft 63 is rotatably connected to the clamp rod 1. The fixed plate 61 is fixedly mounted on the rotating shaft 63. The movable plate 62 is rotatably mounted on the rotating shaft 63. The rotation of the movable plate 62 is controlled by the rotation of the movable handle 12; a sleeve 2 is movably sleeved on the clamp rod 1. The length of the clamp rod 1 is 18-25 cm. In this embodiment, a driving rod 7 is slidably arranged in the clamp rod 1, and the front end of the driving rod 7 cooperates with the rotating shaft 63, and the rear end of the driving rod 7 cooperates with the regulator 3. The driving rod 7 is controlled by rotating the regulator 3 to slide and drive the rotating shaft 63 to rotate, thereby driving the chuck 6 to rotate; the regulator 3 includes a knob 31, a connecting rod 32, and a connecting member 33. The connecting member 33 is rotatably installed in the clamp rod 1, and the connecting member 33 includes a coaxially fixedly connected gear 2 and a bevel gear 1; the connecting rod 32 is rotatably installed on the clamp rod 1, and one end of the connecting rod 32 is fixedly provided with a bevel gear 2 that cooperates with the bevel gear 1; the knob 31 is movably inserted into the other end of the connecting rod 32, and the knob 31 is connected to the clamp rod 1 through an elastic element 5; In this embodiment, a toothed structure is provided at a position corresponding to the knob 31 on the pliers rod 1, and a toothed structure is provided at one end of the knob 31. Under the action of the elastic element 5, the toothed structure of the knob 31 cooperates with the toothed structure of the pliers rod 1 to limit the rotation of the knob 31; a gear 1 is coaxially fixedly provided on the rotating shaft 63, and a rack 1 cooperating with the gear 1 is provided at the front end of the driving rod 7; a rack 2 cooperating with the gear 2 is fixedly provided at the rear end of the driving rod 7; In this embodiment, a fixed handle 11 and a rotatable handle 12 are fixedly provided at the rear of the clamp rod 1, a chuck 6 is rotatably provided in front of the clamp rod 1, and a sleeve 2 is movably sleeved on the clamp rod 1; when in use, the sleeve 2 covers the chuck 6, so that the chuck 6 can smoothly enter the vagina; the rotation of the rotating shaft 63 of the chuck 6 is controlled by the adjuster 3 rotatably provided on the clamp rod 1, so as to drive the chuck 6 to rotate to 90 degrees and align it with the base of the cervix. Embodiment 2:

[0020] See also Figure 1-10According to Example 1, a mounting cavity 13 is provided in the clamp rod 1, and an outer cylinder 131, an inner cylinder 132, and a through-hole disk 133 are provided in the mounting cavity 13. The outer cylinder 131 is fixedly installed in the mounting cavity 13, one end of the inner cylinder 132 is movably inserted into the outer cylinder 131, and the through-hole disk 133 is rotatably installed on the other end of the inner cylinder 132, and is connected to the mounting cavity 13 through the disk through the elastic element 5; a spiral groove is provided on the cylinder wall of the outer cylinder 131, and a guide column is fixedly provided on the outer wall of the inner cylinder 132, and the guide column slides along the spiral groove. When the inner cylinder 132 slides, the inner cylinder 132 is rotated by the action of the spiral groove.

[0021] In this embodiment, a pull rope 9 is provided in the clamp rod 1, one end of the pull rope 9 is fixedly connected to the inner wall of the through hole disc 133, and the other end is connected to the movable handle 12. The pull rope 9 is pulled by rotating the movable handle 12 to pull the through hole disc 133 of the inner cylinder 132 and slide, so that the inner cylinder 132 rotates; In this embodiment, one end of the movable plate 62 is rotatably connected to the rotating shaft 63 by a fixedly arranged sector gear, and the axis of the sector gear is perpendicular to the axis of the rotating shaft 63; a transmission rod 8 is rotatably installed in the clamp rod 1, and a gear three cooperating with the sector gear is fixedly arranged at the front end of the transmission rod 8, and the rear end of the transmission rod 8 is coaxially fixedly connected with the inner cylinder 132. When the chuck 6 rotates 90 degrees, the sector gear on the movable plate 62 cooperates with the gear three, and at this time, the rotation of the inner cylinder 132 drives the transmission rod 8 to rotate, thereby driving the rotation of the movable plate 62; In this embodiment, the movable handle 12 is connected to the fixed handle 11 through an elastic element 5, an arc-shaped limit rod 4 is fixedly provided on the fixed handle 11, a tooth-shaped structure is provided on the limit rod 4, and a clamping block 121 is slidably provided on the movable handle 12; one end of the clamping block 121 is connected to the movable handle 12 through the elastic element 5, and the other end cooperates with the tooth-shaped structure of the limit rod 4 to limit the rotation and expansion of the movable handle 12; one end of the movable plate 62 and the fixed plate 61 is a hollow oval structure, which can effectively clamp and fix the root of the cervix and effectively prevent tissue damage. The length of the movable plate 62 and the fixed plate 61 is 3.5-4cm; In this embodiment, the movable plate 62 of the chuck 6 is driven to open by rotating the movable handle 12 and aligned with the base of the cervix, and the movable plate 62 of the chuck 6 is driven to close by rotating the movable handle 12 to clamp and fix the base of the cervix with the fixed plate 61, so that the right hand has a force point when performing a biopsy, which makes it more convenient to grasp the diseased tissue and to obtain more tissue.

[0022] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cervical biopsy auxiliary fixator, comprising a clamp rod and an elastic element, wherein a fixed handle and a movable handle are fixedly arranged at the rear of the clamp rod, characterized in that: A chuck is rotatably arranged in front of the clamp rod, and an adjuster is rotatably arranged on the clamp rod to control the rotation of the chuck; the chuck includes a fixed plate, a movable plate, and a rotating shaft, the rotating shaft is rotatably connected to the clamp rod, the fixed plate is fixedly installed on the rotating shaft, the movable plate is rotatably installed on the rotating shaft, and the rotation of the movable plate is controlled by rotating the movable handle.

2. A cervical biopsy auxiliary fixator according to claim 1, characterized in that: A driving rod is slidably arranged in the clamp rod, the front end of the driving rod cooperates with the rotating shaft, and the rear end of the driving rod cooperates with the regulator. The driving rod is controlled to slide and drive the rotating shaft to rotate by rotating the regulator, thereby driving the chuck to rotate.

3. A cervical biopsy auxiliary fixator according to claim 2, characterized in that: The regulator includes a knob, a connecting rod, and a connecting piece. The connecting piece is rotatably installed in the clamp rod, and the connecting piece includes a coaxially fixedly connected gear 2 and a bevel gear 1; the connecting rod is rotatably installed on the clamp rod, and one end of the connecting rod is fixedly provided with a bevel gear 2 that cooperates with the bevel gear 1; the knob is movably inserted into the other end of the connecting rod, and the knob is connected to the clamp rod through an elastic element.

4. A cervical biopsy auxiliary fixator according to claim 3, characterized in that: A toothed structure is provided on the clamp rod at a position corresponding to the knob, and a toothed structure is provided at one end of the knob. Under the action of the elastic element, the toothed structure of the knob cooperates with the toothed structure of the clamp rod to limit the rotation of the knob.

5. A cervical biopsy auxiliary fixator according to claim 4, characterized in that: A gear 1 is coaxially fixedly arranged on the rotating shaft, and a rack 1 matched with the gear 1 is arranged at the front end of the driving rod; a rack 2 matched with the gear 2 is fixedly arranged at the rear end of the driving rod.

6. The cervical biopsy auxiliary fixator according to claim 1, characterized in that: The clamp rod has an installation cavity, and an outer cylinder, an inner cylinder, and a through-hole disc are arranged in the installation cavity. The outer cylinder is fixedly installed in the installation cavity, one end of the inner cylinder is movably inserted into the outer cylinder, and the through-hole disc is rotatably installed on the other end of the inner cylinder, and is connected to the installation cavity through an elastic element through the disc; a spiral groove is arranged on the wall of the outer cylinder, and a guide column is fixedly arranged on the outer wall of the inner cylinder, and the guide column slides along the spiral groove. When the inner cylinder slides, the inner cylinder is rotated by the action of the spiral groove.

7. A cervical biopsy auxiliary fixator according to claim 6, characterized in that: A pull rope is arranged in the clamp rod, one end of the pull rope is fixedly connected to the inner wall of the through hole disc, and the other end is connected to the movable handle. The inner cylinder and the through hole disc are pulled to slide by rotating the movable handle to rotate the inner cylinder.

8. The cervical biopsy auxiliary fixator according to claim 7, characterized in that: One end of the movable plate is rotatably connected to the rotating shaft through a fixed fan-shaped gear, and the axis of the fan-shaped gear is perpendicular to the axis of the rotating shaft; a transmission rod is rotatably installed in the clamp rod, and a gear three that cooperates with the fan-shaped gear is fixedly provided at the front end of the transmission rod, and the rear end of the transmission rod is coaxially fixedly connected to the inner cylinder, and the rotation of the inner cylinder drives the transmission rod to rotate, thereby driving the rotation of the movable plate.

9. The cervical biopsy auxiliary fixator according to claim 1, characterized in that: The movable handle is connected to the fixed handle via an elastic element, an arc-shaped limiting rod is fixedly arranged on the fixed handle, a toothed structure is provided on the limiting rod, and a clamping block is slidably arranged on the movable handle; one end of the clamping block is connected to the movable handle via an elastic element, and the other end cooperates with the toothed structure of the limiting rod to limit the rotation and expansion of the movable handle.

10. The cervical biopsy auxiliary fixator according to claim 1, characterized in that: A sleeve is movably sleeved on the clamp rod.

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