CN211271041U

CN211271041U - Puncture biopsy needle guiding and positioning device in transanal prostate puncture

Info

Publication number: CN211271041U
Application number: CN201922156276.XU
Authority: CN
Inventors: 汤庆峰; 黄晓科; 刘承万
Original assignee: Chengdu Xindu Peoples Hospital
Current assignee: Chengdu Xindu Peoples Hospital
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-08-18
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a puncture biopsy needle guiding and positioning device in anus prostate puncture art, it includes flat pipe, relates to medical instrument technical field, is provided with the contact pin hole that runs through on the flat pipe, and the front end of flat pipe is provided with the locating surface, is provided with the arc recess on the top surface of flat pipe, fixes being provided with the dactylotheca on the flat pipe, and the arc recess passes the dactylotheca. Solves the problems that when the biopsy needle is used for puncture in the existing transanal prostate puncture, the biopsy needle is inserted into the anus of a patient and easily scratches the rectal mucosa of the patient and stabs the fingers of medical care personnel in the process of finding a sampling position.

Description

Puncture biopsy needle guiding and positioning device in transanal prostate puncture

Technical Field

The utility model relates to the technical field of medical equipment, especially relate to a puncture biopsy needle guiding and positioning device in anus prostate puncture.

Background

The puncture biopsy is a tumor diagnosis mode for biopsy by inserting a puncture needle into a tumor area and adopting tumor tissues, in the existing transanal prostate puncture operation, during puncture, medical workers usually stick the puncture needle to the inner side of a finger and send the puncture needle into an anus through finger guide, but because the once accurate positioning of the puncture biopsy needle cannot be guaranteed, the finger is usually required to move in the anus to adjust the position of the puncture biopsy needle, in the adjustment process, the finger of the medical workers is easily punctured, and the rectal mucosa is easily scratched.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a puncture biopsy needle guiding and positioning device in anus prostate puncture art has solved when current puncture biopsy needle in anus prostate puncture art, inserts the problem that the easy scratch patient's rectal mucosa of sample position in-process and stab medical personnel finger are inserted to the biopsy needle in the patient anus.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a puncture biopsy needle guide positioner in anus prostate puncture art, it includes flat pipe, is provided with the contact pin hole that runs through on the flat pipe, and the front end of flat pipe is provided with the locating surface, is provided with the arc recess on the top surface of flat pipe, the fixed dactylotheca that is provided with on the flat pipe, and the arc recess passes the dactylotheca.

Furthermore, the locating surface is an inclined surface which inclines outwards from the bottom end to the top end of the flat pipe, and the pin inserting hole penetrates through the locating surface. The positioning is realized through the inclined plane, the structure is simple, the processing is easy, and the cost can be effectively controlled.

Furthermore, the included angle between the positioning surface and the horizontal plane is 28-45 degrees. The contact degree between the positioning surface in the angle range and the human tissue is the best, so that the positioning is more accurate.

Furthermore, the flat pipe is a solid pipe with an oval cross section, and the pin holes are formed in the oval middle and penetrate through the flat pipe in the axial direction. The solid flat tube can improve the rigidity of the device, and is not easy to deform and more accurate in positioning when moving in the anus of a human body.

Further, the aperture of the pin inserting hole is gradually increased from the front end to the rear end of the flat pipe. The inserting needle hole is conical, after the flat tube is placed in place, the puncture biopsy needle can be conveniently inserted into a tumor area from the inserting needle hole, the conical surface of the inserting needle hole is convenient to position, and the inserting difficulty of the puncture biopsy needle is reduced.

Further, the flat pipe is provided with two finger sleeves side by side at intervals along the axial direction. On will flat tub of fixed finger to medical personnel's finger through two dactylotheca, improve fixed steadiness, improved the uniformity of flat tub with the finger action.

Furthermore, the finger stall is an elastic band with two ends fixed on two sides of the arc-shaped groove. The finger stall has elasticity and is convenient for sleeving and fixing on the fingers of medical personnel.

Further, the flat pipe is made of PVC, TPE or silica gel. The flat tube made of the materials has good puncture resistance, stable performance, difficult anaphylactic reaction, moderate hardness and convenient movement in the anus without causing damage to medical care personnel and patients.

The utility model has the advantages that: before the puncture biopsy needle is inserted into the anus, the insertion position of the puncture biopsy needle is found by using the guide positioning device, and the guide positioning device does not have a sharp part, so that the rectal mucosa is not scratched in the process of moving and finding the position in the anus, the fingers of medical personnel are not injured, and the safety and the convenience of operation are improved.

The finger sleeve on the flat tube is used for fixing the flat tube to a finger, and the arc-shaped groove on the flat tube is used for increasing the contact area of the flat tube and the finger, so that the action consistency of the flat tube and the finger is improved; the joint degree of the flat tube and the tumor area is improved through the positioning surface, and the positioning effect is achieved.

Drawings

Fig. 1 is a schematic structural diagram of a biopsy needle guiding and positioning device in transanal prostatectomy.

Fig. 2 is a sectional view taken along a-a in fig. 1.

Wherein, 1, flat tube; 2. a pin inserting hole; 3. positioning the surface; 4. an arc-shaped groove; 5. disclosed is a finger stall.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 and 2, the guide and positioning device for the biopsy needle in the transanal prostate puncture comprises a flat tube 1, wherein the flat tube 1 is a solid tube with an oval cross section, the flat tube 1 is made of PVC, TPE or silica gel, and the length of the flat tube 1 is cut according to needs. Be provided with contact pin hole 2 on flat pipe 1, contact pin hole 2 sets up in oval middle part and runs through along flat pipe 1's axial, and contact pin hole 2's aperture is crescent from flat pipe 1's front end to rear end, forms a bell mouth promptly, and the tapering is between 1 ~ 2.

The front end of flat pipe 1 is provided with locating surface 3, and locating surface 3 is the inclined plane of outside slope from the bottom to the top of flat pipe 1, and contact pin hole 2 runs through locating surface 3. The included angle theta between the positioning surface 3 and the horizontal plane is 28-45 degrees. Be provided with arc recess 4 on flat pipe 1's the top surface, arc recess 4 is used for supplying medical personnel's finger to put into, and arc recess 4's bottom surface and side all contact with the finger, improve flat pipe 1 and the uniformity of finger action.

A finger stall 5 is fixedly arranged on the top surface of the flat tube 1, and the arc-shaped groove 4 penetrates through the finger stall 5. The flat pipe 1 is provided with two finger sleeves 5 along the axial direction at intervals side by side. The finger stall 5 is an elastic belt with two ends fixed on two sides of the arc-shaped groove 4. The finger stall 5 is used for fixing the flat tube 1 on the finger of the medical staff.

When in use, before the puncture biopsy needle is inserted into the anus, the guide positioning device is firstly sleeved on the finger of the medical staff through the finger stall 5, and the finger belly of the medical staff is clung to the bottom surface of the arc-shaped groove 4. Medical personnel insert the anus through the finger and take this guide positioning device and find the position that the biopsy needle inserted and through the face of location and tumour district support tight contact and fix, the centre of a circle of needle insertion hole just is on tumour district this moment, then insert the syringe needle of biopsy needle from needle insertion hole 2, the syringe needle just inserts tumour district this moment, need not move the biopsy needle in the anus and move about in scratch rectal mucosa or stab medical personnel's finger.

Claims

1. The utility model provides a puncture biopsy needle guide positioner in anus prostate puncture art, its characterized in that, includes flat pipe (1), be provided with pin hole (2) that run through on flat pipe (1), the front end of flat pipe (1) is provided with locating surface (3), be provided with arc recess (4) on the top surface of flat pipe (1), the fixed dactylotheca (5) that is provided with on flat pipe (1), arc recess (4) pass dactylotheca (5).

2. The needle biopsy needle guiding and positioning device for trans-anal prostatectomy as claimed in claim 1, wherein the positioning surface (3) is a slope inclined from the bottom end to the top end of the flat tube (1) to the outside, and the needle insertion hole (2) penetrates through the positioning surface (3).

3. The needle biopsy needle guiding and positioning device for transanal prostatectomy as claimed in claim 2, wherein the angle between the positioning surface (3) and the horizontal plane is 28-45 °.

4. The needle biopsy needle guiding and positioning device for transanal prostate puncture according to claim 1, characterized in that the flat tube (1) is a solid tube with an oval cross section, and the needle insertion hole (2) is arranged in the middle of the oval and penetrates along the axial direction of the flat tube (1).

5. The needle biopsy needle guiding and positioning device for transanal prostatectomy as claimed in claim 4, wherein the aperture of the needle insertion hole (2) is gradually increased from the front end to the rear end of the flat tube (1).

6. The needle biopsy needle guiding and positioning device for transanal prostatectomy as claimed in claim 1, wherein the flat tube (1) is provided with two finger sleeves (5) along the axial direction thereof at intervals side by side.

7. The needle biopsy needle guiding and positioning device for transanal prostatectomy as claimed in claim 1 or 6, wherein the finger sleeve (5) is an elastic band fixed at both ends on both sides of the arc-shaped groove (4).

8. The needle biopsy needle guiding and positioning device for transanal prostate puncture according to claim 1, wherein the flat tube (1) is made of PVC, TPE or silica gel.