CN204484181U - The sampling head of one-off cervix aspiration biopsy pincers - Google Patents

Abstract

The utility model relates to a sampling head of a disposable puncture biopsy forceps, which belongs to the technical field of medical appliances. It includes a quantitative mechanism, a sampling mechanism and a driving mechanism. The quantitative mechanism is composed of a quantitative sleeve and a quantitative sleeve assembly seat. The sampling mechanism includes a needle tube and a slice. The front end of the needle tube is provided with a cutout. In contrast, the rear end of the needle tube is detachably connected with a needle tube assembly seat, and the driving mechanism is composed of a detachable connection between the auxiliary needle tube and the auxiliary needle tube assembly seat. The coaxial detachable connections are sequentially arranged from the outside to the inside. The utility model has reasonable structural design, simple processing and assembly, low processing cost, accurate and reliable sampling volume, and less pain.

Description

Sampling head of disposable cervical biopsy forceps

technical field

The utility model relates to a sampling head of a disposable cervical puncture biopsy forceps, which belongs to the technical field of medical appliances.

Background technique

Biopsy forceps is an essential tool for gynecological examination. When a doctor or patient wants to perform pathological examination on the lesion, it can enter the patient's body through the biopsy forceps to clamp the tissue of the lesion for pathological examination for diagnosis. Sampling microtrauma through biopsy forceps, so it is very popular with doctors and patients. At present, when dilators are used clinically for gynecological examinations, the description of the lesion range is usually estimated based on experience, so there is a lack of more accurate measurement values, and the measurement results often have large errors and even misleading when compared with the actual lesion range The examination doctor's initial impression on the diagnosis of the lesion, and due to the limited flexibility of the biopsy forceps, the long sampling time, and the great pain, it is difficult to obtain a satisfactory tissue during the biopsy.

Contents of the invention

The purpose of the utility model is to solve the deficiencies of the prior art, and provide a sampling head of a disposable cervical puncture biopsy forceps. The sampling mechanism has accurate sampling, high success rate, and less pain in sampling.

The technical scheme that the utility model solves its technical problem adopts is:

The sampling head of the disposable cervical puncture biopsy forceps includes a quantitative mechanism, a sampling mechanism and a driving mechanism. The quantitative mechanism is composed of a quantitative sleeve and a quantitative sleeve assembly seat. The sampling mechanism includes a needle tube and a slice. , the slice is fixed on the front end of the needle tube and is opposite to the incision part, the needle tube assembly seat is detachably connected to the rear end of the needle tube, the driving mechanism is composed of a detachable connection between the auxiliary needle tube and the auxiliary needle tube assembly seat, and the quantitative mechanism, sampling mechanism and driving mechanism are assembled through the quantitative sleeve The seat, the needle tube assembly seat and the auxiliary needle tube assembly seat are coaxially and detachably connected sequentially from outside to inside.

Preferably, the inclination angle of the cutout of the needle tube is 30-45°, and the horizontal projection length of the cutout is 2-6mm.

Preferably, the slice is composed of a fixing part, a connecting part and a cutting part, the connecting part and the needle tube form an included angle of 30-45°, and the cutting part abuts against the notch part.

Preferably, the needle tube is plugged or clamped with the needle tube assembly seat, and the needle tube assembly seat is provided with a raised line, the auxiliary needle tube is inserted or clamped with the secondary needle tube assembly seat, and the corresponding assembly groove in the auxiliary needle tube assembly seat, the needle tube The assembly seat and the auxiliary needle tube assembly seat are clipped together through the cooperation between the convex strip and the assembly groove.

Preferably, the auxiliary needle tube assembly seat is provided with a protrusion, and the quantitative set assembly seat is correspondingly provided with a card slot, and the auxiliary needle tube assembly seat and the quantitative set assembly seat are snapped together through the cooperation of the protrusion and the card slot.

Preferably, the needle tube, the auxiliary needle tube and the section are all processed from stainless steel, and the quantitative set assembly, needle tube assembly seat and auxiliary needle tube assembly seat are all processed from medical plastics.

The working principle of the utility model is as follows: under the action of external force, the driving mechanism can move towards the sampling end relative to the quantitative mechanism and the sampling mechanism, and the auxiliary needle tube of the driving mechanism squeezes the slice of the sampling mechanism to the incision, and the slice is cut obliquely downward. Sampling is realized. After the sampling is completed, the external force is released, and the auxiliary needle tube is reset under the action of the elastic restoring force of the slice.

The beneficial effects of the utility model are: the utility model has reasonable structural design, simple processing and assembly, low processing cost, accurate and reliable sampling volume, and less pain.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is an exploded exploded view of the motor of the present invention.

In the figure: 1. Quantitative mechanism, 11. Quantitative sleeve, 12. Quantitative sleeve assembly seat, 2. Sampling mechanism, 21. Needle tube, 22. Section, 23. Needle tube assembly seat, 3. Driving mechanism, 31. Auxiliary needle tube, 32 , Auxiliary needle tube assembly seat.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.

Example:

The sampling head of the disposable cervical puncture biopsy forceps as shown in Figure 1 and Figure 2 includes a quantitative mechanism 1, a sampling mechanism 2 and a driving mechanism 3, and the quantitative mechanism 1 is detachably connected by a quantitative sleeve 11 and a quantitative sleeve fitting seat 12 The sampling mechanism 2 includes a needle tube 21 and a slice 22. The front end of the needle tube 21 is provided with a notch, and the slice 22 is fixed on the front end of the needle tube 21 and is opposite to the cutout. The rear end of the needle tube 21 is detachably connected with a needle tube assembly seat 23. The auxiliary needle tube 31 and the auxiliary needle tube assembly seat 32 are detachably connected, and the quantification mechanism 1, the sampling mechanism 2 and the driving mechanism 3 are coaxially connected through the quantitative set assembly seat 12, the needle tube assembly seat 23 and the auxiliary needle tube assembly seat 32 from outside to inside. Disconnect the connection.

Specifically, the needle tube 1 is inserted into the needle tube assembly seat 23, and the outside of the needle tube assembly seat 23 is symmetrically processed with two convex lines. An assembly groove is processed, and the needle tube assembly seat 23 and the auxiliary needle tube assembly seat 32 are snapped together by the protrusions and the assembly groove. At the same time, the needle tube assembly seat 23 and the auxiliary needle tube assembly seat 32 can move relatively under the action of external force. A pair of protrusions are symmetrically processed on the outside of the needle tube assembly seat 32, and a pair of slots are correspondingly processed on the quantitative set assembly seat 12. Under the action of external force, relative movement is possible between the seat 32 and the matching seat 12 of the quantitative set.

In this embodiment, the inclination angle of the incision of the needle tube 21 is 45°, and the horizontal projection length of the incision is 5mm. ° angle, the cutting part abuts against the notch part.

In this embodiment, the needle tube 21, the auxiliary needle tube 31 and the section 22 are all made of stainless steel, and the quantitative set assembly 12, the needle tube assembly seat 23 and the auxiliary needle tube assembly seat 32 are all processed from medical plastic.

The above-described embodiment is only a preferred solution of the utility model, and does not limit the utility model in any form. There are other variations and improvements without exceeding the technical solution described in the claims. type.

Claims (6)

1. the sampling head of one-off cervix aspiration biopsy pincers, it is characterized in that: comprise quantitative mechanism (1), sampling mechanism (2) and driving mechanism (3), described quantitative mechanism (1) is by quantitative cover (11) and quantitatively overlap assembling stand (12) and removably connect and form, sampling mechanism (2) comprises needle tubing (21) and section (22), needle tubing (21) front end is provided with notch, section (22) is fixed on needle tubing (21) front end and relative with notch, needle tubing (21) rear end is removably connected with needle tubing assembling stand (23), driving mechanism (3) is removably connected by secondary needle tubing (31) and secondary needle tubing assembling stand (32) and forms, quantitative mechanism (1), driving mechanism (3) and sampling mechanism (2) are by quantitatively overlapping assembling stand (12), secondary needle tubing assembling stand (32) and needle tubing assembling stand (23) coaxially removably connect from outside to inside successively.

2. the sampling head of one-off cervix aspiration biopsy pincers according to claim 1, it is characterized in that: the notch inclination angle of described needle tubing (21) is 30 ~ 45 °, the floor projection length of notch is 2-6mm.

3. the sampling head of one-off cervix aspiration biopsy pincers according to claim 2, it is characterized in that: described section (22) is made up of fixed part, connecting portion and cutting part, in the angle of 10-70 ° between connecting portion and needle tubing (21), cutting part abuts with notch.

4. the sampling head of one-off cervix aspiration biopsy pincers according to claim 1, it is characterized in that: described needle tubing (21) and (23) grafting of needle tubing assembling stand or clamping, needle tubing assembling stand (23) outside is provided with raised line, described secondary needle tubing (31) and secondary needle tubing assembling stand (32) grafting or clamping, secondary needle tubing assembling stand (32) interior correspondence is provided with fitting recess, and needle tubing assembling stand (23) and secondary needle tubing assembling stand (32) coordinate clamping by raised line and fitting recess.

5. the sampling head of one-off cervix aspiration biopsy pincers according to claim 2, it is characterized in that: described secondary needle tubing assembling stand (32) is provided with projection, quantitative cover assembling stand (12) correspondence is provided with draw-in groove, secondary needle tubing assembling stand (32) and quantitatively overlap assembling stand (12) and coordinate clamping by projection and draw-in groove.

6. the sampling head of one-off cervix aspiration biopsy pincers according to claim 1, it is characterized in that: described needle tubing (21), secondary needle tubing (31) and section (22) process by stainless steel material, described quantitative cover assembling (12), needle tubing assembling stand (23) and secondary needle tubing assembling stand (32) process by medical plastic.