阅读说明：本技术 一种一次性使用活体取样钳改良装置 (Disposable biopsy forceps improvement device ) 是由 吴婕 黄瑛 于 2020-04-15 设计创作，主要内容包括：本发明涉及医用设备技术领域,具体为一种一次性使用活体取样钳改良装置,包括拉环,所述拉环一侧设有拉杆,所述拉杆外侧套有钳口手柄,所述钳口手柄右侧且在拉杆外侧套有折叠手柄,所述拉杆末端连接有空腔的若干长度的弹簧外管,所述弹簧外管末端连接有折叠外管,所述折叠外管末端设有铰接头,所述铰接头上铰接有钳头外管,所述折叠外管和钳头外管内壁上还焊有一片弹簧片,所述钳头外管末端铰接有一组剪刀形的钳口。本发明可控制夹头开合方向为竖着,使其和取样钳的弹簧外管平行,使得夹持物体的接触体积变小且方便,不易损伤和影响到病人。(The invention relates to the technical field of medical equipment, in particular to a disposable biopsy forceps improvement device which comprises a pull ring, wherein a pull rod is arranged on one side of the pull ring, a jaw handle is sleeved on the outer side of the pull rod, a folding handle is sleeved on the right side of the jaw handle and on the outer side of the pull rod, the tail end of the pull rod is connected with a plurality of spring outer tubes with lengths of a cavity, the tail end of each spring outer tube is connected with a folding outer tube, a hinge joint is arranged at the tail end of each folding outer tube, a forceps head outer tube is hinged to the hinge joint, a spring piece is further welded on the folding outer tube and the inner wall of the forceps head outer tube, and a group. The invention can control the opening and closing direction of the chuck to be vertical, so that the chuck is parallel to the outer spring tube of the sampling forceps, the contact volume of the clamped object is reduced and convenient, and the clamped object is not easy to damage and influence patients.)

1. The utility model provides a disposable biopsy forceps improvement device, includes pull ring (1), its characterized in that: pull ring (1) one side is equipped with pull rod (11), pull rod (11) outside cover has handle (2) of keeping silent, keep silent handle (2) right side and have folding handle (3) in pull rod (11) outside cover, pull rod (11) end-to-end connection has spring outer tube (4) of a plurality of lengths of cavity, spring outer tube (4) end-to-end connection has folding outer tube (5), folding outer tube (5) end is equipped with hinge (51), it has binding clip outer tube (6) to articulate on hinge (51), still welded a slice spring leaf (52) on folding outer tube (5) and binding clip outer tube (6) inner wall, binding clip outer tube (6) end-to-end articulation has jaw (7) of a set of scissors shape.

2. The improved device of claim 1, wherein the biopsy forceps further comprises: the novel jaw-opening type steel wire drawing machine is characterized in that a pull rod cavity (22) is formed in the center of the pull rod (11), a section of jaw handle cavity (21) is formed in the matching section of the jaw handle (2) and the pull rod (11), and a jaw steel core (12) is arranged on the inner wall of the jaw handle cavity (21).

3. The improved device of claim 2, wherein the biopsy forceps further comprises: the special clamp is characterized in that a stepped cavity is formed in the position, corresponding to the tail end of the external clamp handle (2), of the pull rod cavity (22), a damping spring (23) is filled in the stepped cavity, the number of the clamp jaw steel cores (12) is two, the clamp jaw steel cores (12) are symmetrically arranged in the pull rod cavity (22) and are divided into two parts, the first part of each clamp jaw steel core (12) is connected to one end, close to the pull ring (1), of the damping spring (23) from the handle cavity (21), and the second part of each clamp jaw steel core (12) starts from the other end of the damping spring (23) and passes through the subsequent pull rod cavity (22), the cavity of the spring outer tube (4), the interior of the folding outer tube (5) and the interior of the clamp head outer tube (6) and is connected to the tail end connecting hole of each jaw.

4. The improved device of claim 1, wherein the biopsy forceps further comprises: folding handle cavity (32) are equipped with in folding handle (3) and pull rod cavity (22) cooperation section, be equipped with folding steel core (13) on folding handle cavity (32) inner wall, folding steel core (13) are from on folding handle cavity (32) inner wall through pull rod cavity (22) spring outer tube (4) cavity and folding outer tube (5) internal connection to spring leaf (52) on the end of this section in binding clip outer tube (6).

5. The improved device of claim 4, wherein the biopsy forceps further comprises: still be equipped with a locking boss (31) in folding handle cavity (32), folding handle cavity (32) to folding handle (3) surface is equipped with a through-hole the same with locking boss (31) size.

6. The improved device of claim 1, wherein the biopsy forceps further comprises: the hinge axis of the folding outer tube (5) and the tong head outer tube (6) is vertical to the hinge axis of the tong head outer tube (6) and the tong mouth (7).

Technical Field

The invention relates to the technical field of medical equipment, in particular to an improved device of disposable biopsy forceps.

Background

The biopsy forceps are special instruments for collecting biopsy samples in upper and lower digestive tracts, respiratory tracts, urinary systems and female reproductive systems and providing the biopsy samples for pathological analysis. In general clinical operation, with the aid of an endoscope, a sampling forceps enters a human body through a forceps channel of the endoscope, a forceps head is aligned to a focus, a handle slider is pushed, a forceps opening can be opened, then a sampled tissue is approached, the handle slider is pulled, the forceps opening can be closed at the moment, an outer tube is pulled backwards, and the sampling forceps are taken out; in addition, the sampling forceps can also clamp other medical equipment to enter and exit the human body when in normal use. The motion control structure principle of the chuck is simple, namely the chuck in front is controlled to be opened and closed by a central steel wire pulling connecting rod structure.

However, in the actual use process, the clamping head of the sampling forceps needs to bite the clamped object, and the whole opening and closing of the clamping head is perpendicular to the outer spring tube of the sampling forceps, so that when medical personnel clamp the object, the clamped object inevitably transversely enters and exits the human body, and the actual use experience is that the clamping device easily causes danger, and if transversely enters the human body, the intestinal wall can be punctured. The thinking of a solution is, when pressing from both sides the thing business turn over human, can control the chuck direction of opening and shutting for erecting, promptly with the spring outer tube of sampling forceps is parallel, the object of centre gripping promptly erects the entering human body like this, the direction of change can make the centre gripping small and convenient not damage and influence patient yet.

Disclosure of Invention

The present invention is directed to an improved device of disposable biopsy forceps to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a disposable biopsy forceps improvement device, includes the pull ring, pull ring one side is equipped with the pull rod, pull rod outside cover has the handle of keeping silent, keep silent the handle right side and have folding handle in the pull rod outside cover, pull rod end-to-end connection has the spring outer tube of a plurality of lengths of cavity, spring outer tube end-to-end connection has folding outer tube, folding outer tube end is equipped with the hinge joint, it has the binding clip outer tube to articulate on the hinge joint, still welded a slice spring leaf on folding outer tube and the binding clip outer tube inner wall, binding clip outer tube end-to-end articulates there is the keeping silent of a set of scissors shape.

Furthermore, a pull rod cavity is arranged in the center of the pull rod, a section of jaw handle cavity is arranged at the matching section of the jaw handle and the pull rod, and a jaw steel core is arranged on the inner wall of the jaw handle cavity.

Furthermore, the pull rod cavity is provided with a section of stepped cavity corresponding to the tail end of the external jaw handle, the stepped cavity is filled with a damping spring, the number of the jaw steel cores is two, the jaw steel cores are symmetrically arranged in the pull rod cavity and are divided into two sections, the first section of each jaw steel core is connected to one end, close to the pull ring, of the damping spring from the handle cavity, the second section of each jaw steel core is connected to the tail end connecting hole of each jaw through the subsequent pull rod cavity, the cavity of the outer spring tube, the interior of the folding outer tube and the interior of the outer jaw tube from the other end of the damping spring.

Furthermore, a folding handle cavity is arranged inside the matching section of the folding handle and the pull rod cavity, a folding steel core is arranged on the inner wall of the folding handle cavity, and the folding steel core starts from the inner wall of the folding handle cavity and is connected to the tail end of the section of the spring piece in the binding clip outer tube through the cavity of the pull rod cavity spring outer tube and the inside of the folding outer tube.

Furthermore, a locking boss is further arranged in the cavity of the folding handle, and a through hole with the same size as the locking boss is arranged from the cavity of the folding handle to the surface of the folding handle.

Furthermore, the hinge axis of the folding outer pipe and the tong head outer pipe is perpendicular to the hinge axis of the tong head outer pipe and the tong mouth.

Compared with the prior art, the invention has the beneficial effects that: the folding handle can control the movement of the folding outer tube and the forceps head outer tube to ensure that the folding outer tube and the forceps head outer tube are vertical, so that the forceps head parts are vertical when clamping things to enter and exit a human body and are parallel to the spring outer tube of the sampling forceps, and the clamped objects can vertically enter and exit the human body, so that the clamping volume is small, the convenience is realized, and the patient is not damaged and influenced; under this design, when reaching the design effect, whole operation is compared with prior art and is had no complexity, has only increased an operation lectotype, and the theory of operation does not have the complicacy to be updated, does not also become burdensome in structure and cost, accords with disposable product's economic theory and use theory, is fit for clinical popularization.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a detail view of portion A of the present invention;

FIG. 3 is a detail view of part B of the structure of the present invention;

FIG. 4 is a detail view of portion C of the present invention;

fig. 5 is a schematic structural view of the jaw portion of the present invention.

In the figure: 1. a pull ring; 11. a pull rod; 12. a jaw steel core; 13. folding the steel core; 2. a jaw handle; 21. a jaw handle cavity; 22. a tie rod cavity; 23. a damping spring; 3. folding the handle; 31. locking the boss; 32. a folding handle cavity; 4. a spring outer tube; 5. folding the outer tube; 51. a hinge joint; 52. a spring plate; 6. an outer pipe of the tong head; 7. and (4) clamping jaws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a disposable biopsy forceps improvement device, including pull ring 1, 1 one side of pull ring is equipped with pull rod 11, 11 outside covers of pull rod have the handle of keeping silent 2, 2 right sides of the handle of keeping silent have folding handle 3 in 11 outside covers of pull rod, 11 end-to-end connection of pull rod has the spring outer tube 4 of a plurality of lengths of cavity, 4 end-to-end connection of spring outer tube have folding outer tube 5, 5 ends of folding outer tube are equipped with articulated joint 51, articulated on the articulated joint 51 have binding clip outer tube 6, still welded a slice spring leaf 52 on folding outer tube 5 and the 6 inner walls of binding clip outer tube, 6 ends of binding clip outer tube articulate have the 7 of keeping silent of a.

The center of the pull rod 11 is provided with a pull rod cavity 22, the matching section of the jaw handle 2 and the pull rod 11 is provided with a section of jaw handle cavity 21, and the inner wall of the jaw handle cavity 21 is provided with a jaw steel core 12.

The pull rod cavity 22 is provided with a step-shaped cavity corresponding to the tail end of the external jaw handle 2, the interior of the step-shaped cavity is filled with a damping spring 23, the number of the jaw steel cores 12 is two, the jaw steel cores 12 are symmetrically arranged and divided into two sections in the pull rod cavity 22, the first section of each jaw steel core 12 is connected to one end, close to the pull ring 1, of the damping spring 23 from the handle cavity 21, and the second section of each jaw steel core 12 is connected to the tail end connecting hole of each section of the jaw 7 from the other end of the damping spring 23 through the subsequent pull rod cavity 22, the cavity of the outer spring tube 4, the interior of the folding outer tube 5 and the interior of the outer jaw tube 6.

Specifically, when the jaw 7 needs to be controlled to be occluded to clamp an object, the pull ring 1 only needs to be buckled by a thumb, the jaw handle 2 is clamped by a forefinger and a middle finger and then stretched, so that the jaw steel core 12 is stressed and stretched, the scissor-shaped handle of the jaw 7, namely the position connected with the jaw steel core 12, is stretched, the cutting edge of the jaw 7 is closed, if the force is restored to keep a natural state, because in the operation, when the jaw steel core 12 is stressed, the damping spring 23 connected between the two sections of jaw steel cores 12 can be stressed and back-extruded, when the natural state is restored, the damping spring 23 can be restored to enable the length of the whole jaw steel core 12 to be lengthened, and the jaw 7 can be opened.

The folding handle cavity 32 is arranged in the matching section of the folding handle 3 and the pull rod cavity 22, the folding steel core 13 is arranged on the inner wall of the folding handle cavity 32, and the folding steel core 13 starts from the inner wall of the folding handle cavity 32 and is connected to the spring piece 52 at the tail end of the section in the forceps head outer tube 6 through the cavity of the pull rod cavity 22 and the interior of the folding outer tube 5.

The folding handle cavity 32 is also provided with a locking boss 31, a through hole with the same size as the locking boss 31 is arranged from the folding handle cavity 32 to the surface of the folding handle 3, and it is worth explaining that the locking boss 31 is of an elastic telescopic boss structure.

It should be further noted that, referring to fig. 4, when in a natural state, the spring leaf 52 is in a straight state, and since two ends of the spring leaf 52 are bridged with the folding outer tube 5 and the binding clip outer tube 6, the whole binding clip part is in a vertical state, and since the spring leaf 52 has a large stress deformation limit, a certain external force can be applied;

when the distance between the folding handle 3 and the pull ring 1 is reduced by operating the folding handle 3 as the operation jaw 7, the folding steel core 13 is pulled back by force, the other end of the folding steel core 13 is arranged at one end of the spring piece 52 at the forceps head outer tube 6, and is deformed by force, and then is bent, as shown in fig. 5, the folding outer tube 5 and the forceps head outer tube 6 are also bent into a right angle along the hinge joint 51; at the moment, the locking boss 31 crosses the through hole, and is clamped and enters a locking state, so that a user is prevented from applying force all the time; if the vertical state of the normal tong head part is recovered, the tong head part is recovered to be vertical only by pressing down the locking boss 31 without external force, and the spring piece 52 is recovered.

The hinge axis of the folding outer tube 5 and the tong head outer tube 6 is vertical to the hinge axis of the tong head outer tube 6 and the tong mouth 7, so that the mutual interference of bending operation and tong head control is avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.