CN219439228U

CN219439228U - Biopsy forceps capable of adjusting limiting depth

Info

Publication number: CN219439228U
Application number: CN202320053279.4U
Authority: CN
Inventors: 申星
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-01
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a biopsy forceps capable of adjusting limiting depth, which comprises a biopsy device used for clamping living tissues, wherein the biopsy device comprises a forceps handle assembly, a forceps rod assembly connected with the forceps handle assembly, a forceps head assembly connected with the forceps rod assembly, and a spring buckle assembly arranged on the forceps rod assembly and used for limiting the extending-in depth of the forceps rod assembly, a clamping cavity of the spring buckle assembly is coated on the forceps rod assembly, when a trigger key of the spring buckle assembly is pressed, the spring buckle assembly can move and change positions on the forceps rod assembly, and when the trigger key of the spring buckle assembly is released, the clamping cavity of the spring buckle assembly clamps the forceps rod assembly. The utility model has the beneficial effects that: according to the biopsy device, the spring buckle assembly is arranged on the biopsy device, so that the extending depth of the biopsy forceps can be limited, and the spring buckle assembly is detachably connected to the biopsy device, so that the position of the spring buckle assembly can be adjusted according to individual differences of each patient, and the entering depth of the biopsy forceps can be safely limited.

Description

Biopsy forceps capable of adjusting limiting depth

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a biopsy forceps capable of adjusting limiting depth.

Background

At present, patients with spinal infection and spinal tumor have a tendency to rise year by year, and the acquisition of evidence of the etiology of spinal infection and the etiology of spinal tumor is the key for diagnosing spinal infection and tumor, and accurate treatment can be performed only by definite diagnosis.

The most common biopsy device in the prior art is a puncture sleeve and a biopsy trephine, which has great biopsy advantages on hard tissues, but often the focus of spinal infection and spinal tumor is mostly soft tissues, and the trephine is difficult to take out the soft tissues, so that the biopsy fails. Therefore, a person clamps the biopsy forceps through the puncture sleeve to obtain more living tissues, but because of the difference of the depth of a focus, the biopsy forceps with fixed length extend too shallow to reach the focus and penetrate through the vertebral body too deep to cause the damage of the blood vessel in front, and the biopsy forceps are required to be positioned through the c-arm perspective machine for multiple times to prevent the biopsy forceps from being too deep during biopsy. Accordingly, the applicant has developed an adjustable depth-limiting biopsy forceps capable of obtaining a biopsy well to increase a biopsy positive rate, and safely limiting the depth of entry of the biopsy forceps according to individual differences of each patient.

Disclosure of Invention

The present utility model aims to address the above-mentioned deficiencies and drawbacks of the prior art by providing a biopsy forceps with adjustable limiting depth.

The technical problems solved by the utility model can be realized by adopting the following technical scheme:

the biopsy forceps with the adjustable limiting depth comprise a biopsy device for clamping living tissues, the biopsy device comprises a forceps handle assembly, a forceps rod assembly connected with the forceps handle assembly and a forceps head assembly connected with the forceps rod assembly, and the biopsy forceps is characterized by further comprising a spring buckle assembly which is arranged on the forceps rod assembly and used for limiting the extending depth of the forceps rod assembly, a clamping cavity of the spring buckle assembly is coated on the forceps rod assembly, when a trigger key of the spring buckle assembly is pressed, the spring buckle assembly can move to change positions on the forceps rod assembly, and when the trigger key of the spring buckle assembly is loosened, the clamping cavity of the spring buckle assembly clamps the forceps rod assembly.

In a preferred embodiment of the present utility model, the spring buckle assembly comprises a first plug structure and a second plug structure which are plugged with each other, the first plug structure comprises a first cylinder structure with an opening at one end and a sealing end at the other end, a first radial through hole is arranged in the middle of the first cylinder structure, the second plug structure comprises a second cylinder structure which is matched with the first cylinder structure and has sealing ends at two ends, a second radial through hole corresponding to the first radial through hole is arranged in the middle of the second cylinder structure, a compression spring is arranged on one side of the second cylinder structure facing the sealing end of the first cylinder structure, and a clamping cavity is formed by the first radial through hole and the second radial through hole.

In a preferred embodiment of the utility model, the length of the snap assembly after fixation is greater than the inner diameter of the penetration sleeve, preventing the biopsy device from sliding into the penetration sleeve.

In a preferred embodiment of the utility model, the forceps handle assembly comprises a fixed forceps handle, a movable forceps handle movably connected with the fixed forceps handle and an annular part arranged on the fixed forceps handle and the movable forceps handle and used for being conveniently operated by medical staff.

In a preferred embodiment of the present utility model, the clamp bar assembly includes a clamp bar connected to the fixed clamp handle, a movable bar slidably disposed within the clamp bar and connected to the movable clamp handle, and a clamp bar connecting portion disposed on the clamp bar and connected to the clamp head assembly.

In a preferred embodiment of the present utility model, a traction rope is provided inside the jaw bar connection portion, one end of the traction rope is connected to the movable bar, and the other end thereof is connected to the jaw head assembly.

In a preferred embodiment of the present utility model, the binding clip assembly includes a binding clip base connected to the binding clip connecting portion, a push rod provided on the binding clip base and connected to the traction rope, and a binding clip provided on the push rod.

In a preferred embodiment of the utility model, the jaw lever attachment is provided with graduations.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that: according to the biopsy device, the spring buckle assembly is arranged on the biopsy device, so that the extending depth of the biopsy forceps can be limited, and the spring buckle assembly is detachably connected to the biopsy device, so that the position of the spring buckle assembly can be adjusted according to individual differences of each patient, and the entering depth of the biopsy forceps can be safely limited.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a structural cross-sectional view of an embodiment of the present utility model.

Fig. 2 is an enlarged view at a of fig. 1.

Fig. 3 is a structural elevation view of an embodiment of the present utility model.

FIG. 4 is a schematic view of the snap-lock assembly and clamp bar assembly of one embodiment of the present utility model.

Detailed Description

The utility model is further described below in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Referring to fig. 1-4, an adjustable depth limiting biopsy forceps includes a biopsy device 100 for clamping tissue of a living being, the biopsy device 100 including a jaw handle assembly 110, a shaft assembly 120 coupled to the jaw handle assembly 110, and a head assembly 130 coupled to the shaft assembly 120.

The spring fastener assembly 200 of this embodiment includes a first socket structure 210 and a second socket structure 220 that are connected to each other, the first socket structure 210 includes a first cylinder structure 211 having an opening 210a at one end and a sealing end 210b at the other end, a first radial through hole 211a is provided in a middle portion of the first cylinder structure 211, the second socket structure 220 includes a second cylinder structure 221 that is mated with the first cylinder structure 211 and has sealing ends 220a and 220b at both ends, a second radial through hole 221a corresponding to the first radial through hole 211a is provided in a middle portion of the second cylinder structure 221, a compression spring 230 is provided on a side of the second cylinder structure 221 facing the sealing end of the first cylinder structure 211, and the first radial through hole 211a and the second radial through hole 221a jointly form a clamping cavity a. The clamping cavity a of the latch assembly 200 is coated on the clamp bar assembly 120, when the trigger key of the latch assembly 200 is pressed (i.e., the first cylinder structure 211 and the second cylinder structure 221 are moved toward each other) and the latch assembly 200 can be moved to change positions in the clamp bar assembly 120, when the trigger key of the latch assembly 200 is released (i.e., the first cylinder structure 211 and the second cylinder structure 221 are moved toward opposite directions), the clamping cavity a of the latch assembly 200 clamps the clamp bar assembly 120 under the action of the compression spring 230. Specifically, one end of the compression spring 230 is fixed to the inner wall of the first cylinder structure 211, and the other end thereof is connected to the sealing end of the second cylinder structure 221.

To prevent the biopsy device from falling into the penetration sleeve, the length of the snap assembly 200 in this embodiment after fixation is greater than the inside diameter of the penetration sleeve.

The jaw handle assembly 110 includes a fixed jaw handle 111, a movable jaw handle 112 movably connected to the fixed jaw handle 111, and annular portions 111a, 112a provided on the fixed jaw handle 111 and the movable jaw handle 112 for convenient operation by a medical staff. Specifically, the fixed clamp handle 111 is movably connected with the movable clamp handle 112 through the rotating shaft 1, and the movable clamp handle 112 can freely move on the fixed clamp handle 111 under the action of the rotating shaft 1.

The clamp bar assembly 120 includes a clamp bar 121 connected to the fixed clamp handle 111, a movable bar 122 slidably disposed within the clamp bar 121 and connected to the movable clamp handle 112, and a clamp bar connecting portion 123 provided on the clamp bar 121 and connected to the clamp head assembly 130. The inside of the clamp bar connecting portion 123 in this embodiment is provided with a pulling rope 124, one end of the pulling rope 124 is connected to the movable bar 122, and the other end of the pulling rope 124 is connected to the clamp head assembly 130. Specifically, the inside of the clamp rod 121 is a hollow structure, one end of the movable rod 122 is movably connected to the movable clamp handle 112 through a rotating shaft, the other end of the movable rod 122 extends to the inside of the clamp rod 121 and is connected with the traction rope 124, and a spring 122a is further arranged at one end of the movable rod 122. The clamp bar connecting portion 123 is provided with a scale 123a, so that a user can know the relative position of the snap fastener assembly 200 conveniently.

The binding clip assembly 130 includes a binding clip base 131 coupled to the binding clip coupling portion 123, a push rod 132 disposed on the binding clip base 131 and coupled to the pull cord 124, and a binding clip 133 disposed on the push rod 132. Specifically, there are two clamp heads 133, and the rotating shafts 1 between the two clamp heads are connected and staggered.

When the biopsy device is used, firstly, a puncture sleeve is used for puncturing tissues, then the spring buckle assembly 200 is pressed to enable the clamping cavity a to pass through the biopsy device 100, finally, the biopsy device 100 passes through the puncture sleeve, when the spring buckle assembly 200 is loosened, the clamping cavity a of the spring buckle assembly 200 clamps the clamp rod assembly 120, the length of the spring buckle assembly 200 after being fixed is larger than the inner diameter of the puncture sleeve, the penetration depth of the biopsy device 100 can be limited, the biopsy device 100 is prevented from falling into the puncture sleeve, finally, the movable clamp handle 112 on the biopsy device 100 is operated, the movable clamp handle 112 drives the movable rod 122 to slide in the clamp rod 121 to drive the traction rope 124 to move, and the traction rope 124 drives the clamp head 133 arranged on the push rod 132 to be closed, so that the clamp head 133 can well acquire living tissues. The snap-lock assembly 200 of the present utility model can safely limit the depth of entry of the biopsy forceps.

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 without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The biopsy forceps with the adjustable limiting depth comprise a biopsy device for clamping living tissues, the biopsy device comprises a forceps handle assembly, a forceps rod assembly connected with the forceps handle assembly and a forceps head assembly connected with the forceps rod assembly, and the biopsy forceps is characterized by further comprising a spring buckle assembly which is arranged on the forceps rod assembly and used for limiting the extending depth of the forceps rod assembly, a clamping cavity of the spring buckle assembly is coated on the forceps rod assembly, when a trigger key of the spring buckle assembly is pressed, the spring buckle assembly can move to change positions on the forceps rod assembly, and when the trigger key of the spring buckle assembly is loosened, the clamping cavity of the spring buckle assembly clamps the forceps rod assembly.

2. The adjustable depth limiting biopsy forceps of claim 1, wherein the spring catch assembly comprises a first insertion structure and a second insertion structure which are inserted into each other, the first insertion structure comprises a first barrel structure with an opening at one end and a sealing end at the other end, a first radial through hole is formed in the middle of the first barrel structure, the second insertion structure comprises a second barrel structure which is matched with the first barrel structure and has sealing ends at two ends, a second radial through hole corresponding to the first radial through hole is formed in the middle of the second barrel structure, a compression spring is arranged on one side, facing the sealing end of the first barrel structure, of the second barrel structure, and the first radial through hole and the second radial through hole jointly form a clamping cavity.

3. An adjustable depth limiting biopsy forceps according to claim 2, wherein the spring catch assembly is fixed to a length greater than an inner diameter of the penetration sleeve to prevent the biopsy device from sliding into the penetration sleeve.

4. The adjustable depth limiting biopsy forceps of claim 1, wherein the forceps handle assembly comprises a fixed forceps handle, a movable forceps handle movably connected to the fixed forceps handle, and an annular portion disposed on the fixed forceps handle and the movable forceps handle for convenient operation by a medical practitioner.

5. The adjustable depth limiting biopsy forceps of claim 4, wherein the forceps rod assembly comprises a forceps rod coupled to the fixed forceps handle, a movable rod slidably disposed within the forceps rod and coupled to the movable forceps handle, and a forceps rod coupling disposed on the forceps rod and coupled to the forceps head assembly.

6. The adjustable depth limiting biopsy forceps of claim 5, wherein a pull rope is disposed within the forceps stem connection, wherein one end of the pull rope is connected to the moveable rod and the other end is connected to the forceps head assembly.

7. The adjustable depth limiting biopsy forceps of claim 6, wherein said forceps head assembly comprises a forceps head base coupled to said forceps stem coupling portion, a push rod disposed on said forceps head base and coupled to said pull cable, and a forceps head disposed on said push rod.

8. A depth-limiting adjustable biopsy forceps as claimed in claim 7, wherein the forceps stem connection is provided with graduations.