CN203953708U - Disposable biopsy harvester - Google Patents

Abstract

This utility model provides a kind of disposable biopsy harvester, formed by drill bit and fixture, drill bit one end is connected with fixture one end, and the drill bit other end is the high outside and low outside sharp knife edges of opening, and the fixture other end has the taper hole for supporting connection disposable syringe conehead.This disposable biopsy harvester is used for the pathological biopsy such as skin histology or tumor tissues clinically and draws materials, adopt rigidity trepan head, the underbalance effect that coordinates syringe to produce when use, makes the specimen neat in edge of getting, regular shape, the integrity that ensures medicine inspection tissue, is conducive to improve specimen quality, shortens the operating time simultaneously, reduce operating technology difficulty, outpatient service can operate, and has improved the efficiency of biopsy extraction, and has also avoided nosocomial infection as disposable equipment.This utility model belongs to disposable medical biopsy Pathologic specimen sampling instrument, belongs to medical apparatus and instruments, simple in structure, efficiently convenient, with low cost, safety and sanitation.

Description

Disposable biopsy harvester

Technical field

This utility model relates to a kind of disposable biopsy harvester, is medical disposable biopsy Pathologic specimen sampling instrument, can be used for the Pathologic specimen collection of skin histology biopsy or tumor tissue biopsy.Belong to medical instruments field.

Background technology

Skin histopathology's collection of specimens is common operation in dermal pathology organizational diagnosis or skin biopsy.Dermopathic diagnosis and treatment, particularly for difficult dermatosis, need to take skin histopathology to check conventionally.Implement at present the indication of skin biopsy at department of dermatologry, comprise cutaneous tumor and precancerosis, leprosy and tuberculosis of skin, bullous dermatosis and allergic vasculitis, have pathogen dermatosis, have relative specificity change in organization dermatosis, there is some inflammatory skin disease etc. of certain specific lesions.At present skin histopathology's collection of specimens, i.e. skin biopsy collection of specimens, method is surgical knife excision method and the borer boring method of drawing materials.Surgical method often have excision lack of standardization, wound is large, the speed not easy to operate and postoperative shortcomings such as cicatrix that leave slowly.Tumor biopsy is one of Main Means of diagnosing tumor, and collection of specimens is at present mainly operative segment excision biological tissue, makes patient have the drawback of operation wound and operation more complicated.

The borer boring method of drawing materials, is routine disinfection skin, after local anaesthesia, draws materials, the borer of selecting suitable aperture according to skin lesion size, left hand is fixed skin, and the right hand rotates in the position one side of drawing materials with borer, one faces down firmly, while getting into suitable scale, takes out borer, pick up gently specimen edge with tweezers, specimen is mentioned, with little shears, specimen is cut off from bottom, specimen is put into formalin fixative bottle immediately, wound hemostasis by compression, pressure dressing.With respect to surgical method, boring method is simple and easy to do.But, still operating process complexity of boring method, operator is empirical require high, and more major defect is, specimen need to pick up with tweezers, then with little shears, specimen is cut off from bottom, in the operation picking up with tweezers, easily cause specimen to destroy or distortion, be unfavorable for Pathologic specimen processing, simultaneously boring method borer used is reused after sterile-processed, has the risk of cross infection.

CN201404235Y discloses a kind of single-use skin biopsy borer, is made up of handle and the sampling head that is fixed on handle, and sampling head free end arranges graduation mark along its length.This utility model is disposable use, avoids polluting.But its use principle is still traditional borer boring method, still could not overcome the defect that need to occur by tweezers gripping specimen, cannot ensure specimen quality.

Utility model content

For overcoming the above problems, this utility model provides a kind of novel disposable biopsy harvester, after being connected with disposable sterilized syringe, can be by being used in conjunction with produced underbalance effect with syringe, make the specimen neat in edge of getting, regular shape, ensure the integrity of medicine inspection tissue, be conducive to improve specimen quality, shorten the operating time simultaneously, reduce operating technology difficulty, outpatient service can operate, improve the efficiency of biopsy extraction, and also avoid nosocomial infection as disposable equipment, drawback and operation inconvenience that conventional borehole device exists in biopsy sampling are overcome.

Technical solutions of the utility model are as follows:

A kind of disposable biopsy harvester, formed by drill bit (1) and fixture (2), drill bit (1) one end is connected with fixture (2) one end, drill bit (1) other end is the high outside and low outside sharp knife edges of opening, and fixture (2) other end has the taper hole for supporting connection disposable syringe conehead.

Disposable biopsy harvester described above, wherein said drill bit (1) is preferably rigidity drill bit.

Disposable biopsy harvester described above, wherein said fixture (2) can be rigidity fixture or plastic fixtures, preferably plastic fixtures.Described fixture (2) other end has taper hole, with supporting connection of conehead of disposable syringe, when use, will in the taper hole of the conehead insertion fixture of syringe, closely connect.

Disposable biopsy harvester described above, wherein said drill bit (1) cross section is circle, triangle, tetragon or polygon, can be as required, select suitable shape, as preferably, described drill bit (1) is cylindrical shape, and its cross section is circular

Disposable biopsy harvester described above, wherein drill bit (1) one end is connected to non-removable tight connection or dismountable tight connection with fixture (2) one end.For example, drill bit is non-removable tight connection with fixture by one-shot forming, or closely connects by spiral way, pluggable mode, bayonet socket mode etc.

Disposable biopsy harvester described above, wherein drill bit (1) indicates length graduation mark along its length, for example, indicate successively the graduation marks such as 2mm, 4mm, 6mm, 8mm from opening to fixture direction, and handled easily person grasps the thickness of drawing materials.

As a kind of concrete disposable biopsy harvester described in the utility model, wherein said drill bit (1) is rustless steel cylindrical shape drill bit, barrel thickness is less than 0.5mm, internal diameter 0.5～20mm, preferred 1～10mm, length 10～200mm, preferred 15～30mm, fixture (2) is plastic fixtures.

Disposable biopsy harvester described in the utility model, can be used for the Pathologic specimen collection of skin histology biopsy or tumor tissue biopsy.

Preferably, disposable biopsy harvester described above, it is as single-use skin biopsy device, described drill bit (1) is rigidity cylindrical shape drill bit, can be for example four kinds of model parts, the internal diameter of every kind of model part with highly respectively: part 2mm, a 15mm, No. two part 4mm, 15mm, No. three part 6mm, 15mm, No. four part 4mm, 25mm.The each model single-use skin of this utility model biopsy device indication: No. one single-use skin biopsy device bore is 2mm, is applicable to Head And Face biopsy, wound surface is little, go out insufficiency of blood; No. two single-use skin biopsy device bore is 4mm, is applicable to the conventional position biopsy of trunk extremity; No. three single-use skin biopsy device bore is 6mm, is applicable to the skin biopsy that needs skin lesion area larger; No. four single-use skin biopsy device bore is 4mm, and length is 25mm, is applicable to the darker skin biopsy of skin lesion.

Preferably, single-use skin biopsy device described above, described fixture (2) is plastic fixtures, high 9mm, external diameter 6mm, it is oblique that inwall is, upper end open internal diameter 2mm, lower ending opening internal diameter 3mm-4mm, can just hold disposable syringe conehead link.

Disposable biopsy harvester of the present utility model, as biopsy Pathologic specimen sampling instrument, can be used for the Pathologic specimen collection of skin histology biopsy or tumor tissue biopsy.For example, for clinical dermal pathology biopsy extraction, adopt rigidity cylindrical shape drill bit, when use, be closely connected by the taper hole of fixture and the conehead of disposable syringe, produce underbalance effect by disposable syringe, the tissue drilling through and skin peeling are opened and are inhaled in drill bit, shift out after harvester, advance syringe ejector sleeve, utilize air pressure that the specimen tissue taking out is released, make the specimen neat in edge of getting, and be standard cylindricality, while avoiding operation to draw materials, specimen is subject to tweezers extruding to cause tissue damaged, improve specimen quality, technology is convenient to grasp simultaneously, easy to use, outpatient service can operate, shorten and draw materials the time, change the complicated processes that existing operation is drawn materials, greatly improve the efficiency of biopsy extraction, equipment is disposable has also avoided infection and cross infection.In a word, this utility model is simple in structure, efficiently convenient, with low cost, safe, has significant social benefit and higher economic worth.

Brief description of the drawings

Fig. 1: the front view of disposable biopsy harvester

Fig. 2: the vertical section view of disposable biopsy harvester

Detailed description of the invention

Embodiment 1:

A kind of disposable biopsy harvester in this utility model, its view as illustrated in fig. 1 and 2.

Stainless steel ring drill bit (1) upper end open is high outside and low outside sharp knife edges, drill bit lower end is inserted and secured on the bit grooves position in the disc of plastic fixtures (2) upper end, fixture is a circular piece being formed by engineering plastics mold, the inwall of fixture (2) lower end is oblique, form taper hole, just can hold the conehead of common disposable syringe.Rigidity trepan head (1), closely connects through one-shot forming with fixture (2), and through high temperature, autoclave sterilization, sterile sealing is encapsulated in plastic bag packaging.

For the collection of specimens of skin biopsy, operating process: after conventional skin degerming, anesthesia, select this part of appropriate model according to size, character and the position of skin lesion.First use disposable syringe and syringe needle, after extracting anaesthetic medicine local anaesthesia, take off syringe needle, anaesthetic in syringe is drained, load onto disposable biopsy harvester, concrete grammar is: syringe is propelling shape, the conehead of syringe is inserted in the taper hole of fixture, rigidity trepan head part is rotated into target skin histology, arrive after the degree of depth needing, pull syringe ejector sleeve, in pipe, form negative pressure, make the tissue and the skin peeling that drill through open and be inhaled in drill bit, shift out after harvester, advance syringe ejector sleeve, utilize air pressure that the specimen tissue taking out is released, put into immediately formalin fixative bottle, wound hemostasis by compression, pressure dressing, or the sealed membrane plastic bag that the supporting lozenge mating with harvester drill-shape and size is housed being equipped with or bottle are opened, take out lozenge and fill in skin wounds place, external application adhesive bandage, then puts into biopsy sealed membrane plastic bag or bottle, send immediately Pathology Deparment.After completing, disposable biopsy harvester is extracted or screwed off from syringe taper hole, complete a complete operating process.

Compared with the biopsy taking out with the disclosed skin biopsy borer such as CN201404235Y, this utility model not only harvester is with low cost, technology is convenient to grasp, easy and simple to handle, can operate in outpatient service, shorten and draw materials the time, changed the complicated processes that traditional operation is drawn materials, greatly improved the efficiency of biopsy extraction; In biopsy sampling operation, the disposable syringe after the disposable biopsy harvester of this utility model and local anaesthesia operation is used in conjunction with, and resources conservation, also reduces medical treatment cost.Main, the biopsy specimen neat in edge of taking-up, avoid operation draw materials or when existing boring method is drawn materials specimen be subject to tweezers extruding to cause tissue damaged, ensured the integrity of medicine inspection tissue, raising specimen quality.

Claims (8)

1. disposable biopsy harvester, formed by drill bit (1) and fixture (2), drill bit (1) one end is connected with fixture (2) one end, drill bit (1) other end is the high outside and low outside sharp knife edges of opening, and fixture (2) other end has the taper hole for supporting connection disposable syringe conehead.

2. disposable biopsy harvester according to claim 1, wherein said drill bit (1) is rigidity drill bit.

3. disposable biopsy harvester according to claim 1, wherein said fixture (2) is rigidity fixture or plastic fixtures.

4. according to the disposable biopsy harvester described in claim 1-3 any one, wherein said drill bit (1) cross section is circle, triangle, tetragon or polygon.

5. according to the disposable biopsy harvester described in claim 1-3 any one, wherein drill bit (1) one end is connected to non-removable tight connection or dismountable tight connection with fixture (2) one end.

6. according to the disposable biopsy harvester described in claim 1-3 any one, wherein drill bit (1) indicates length graduation mark along its length.

7. according to the disposable biopsy harvester described in claim 1-3 any one, wherein said drill bit (1) is rustless steel cylindrical shape drill bit, and barrel thickness is less than 0.5mm, internal diameter 1～10mm, length 10～200mm, fixture (2) is plastic fixtures.

8. disposable biopsy harvester according to claim 7, it is for the Pathologic specimen collection of skin histology biopsy or tumor tissue biopsy.