WO2009079880A1

WO2009079880A1 - Disengagement resistant needle for animal

Info

Publication number: WO2009079880A1
Application number: PCT/CN2007/071302
Authority: WO
Inventors: Qiubao Pan
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2009-07-02
Anticipated expiration: 2010-06-21

Abstract

A disengagement resistant needle (100) for an animal includes a needle hub (20), a needle cannula (10) connected with the needle hub (20), and at least one flexible connecting device (30) made from flexible material. One end of the connecting device (30) is connected with the needle cannula (10), the other end is connected with the needle hub (20).

Description

一种防脱离兽用针头 Anti-beat veterinary needle

技术领域 Technical field

本发明涉及一种针头，尤其涉及一种兽用针头。背景技术 The present invention relates to a needle, and more particularly to a veterinary needle. Background technique

随着人类生活水平的提高，肉用牲畜饲养厂的牲畜数量越来越大，这就需要兽医或养殖人员更加经常的为牲畜进行注射疫苗或治疗。但在为牲畜打针的时候，由于在牲畜感到疼痛时，经常会出现类似疯狂的剧烈运动，造成注射针头的钢管部分发生断裂，断针会挂在牲畜身上，而由于针头管部分前端锋利，在牲畜运动过程中，断针会向前运动，直至进入牲畜体内，这一方面会造成对动物的伤害，另一方面，由于滞留在牲畜体内的断针不易被发现，当牲畜经过肉联厂屠宰处理并成为食品后，断针很可能会造成对人的伤害。 With the improvement of human living standards, the number of livestock in meat livestock farms is increasing, which requires veterinarians or farmers to vaccinate or treat livestock more often. However, when the animals are shot, because of the painful movements in the livestock, there is often a violent movement like crazy, which causes the steel pipe part of the injection needle to break, and the broken needle will hang on the animal, and because the front end of the needle tube part is sharp, During the movement of the livestock, the broken needle will move forward until it enters the animal. This will cause damage to the animal. On the other hand, the broken needle stuck in the animal is not easy to be found. When the animal is slaughtered by the meat factory After handling and becoming a food, broken needles are likely to cause harm to people.

为了发现断针，很多屠宰场或食品检测机构使用金属探测器对屠宰加工后的牲畜肉块进行探测，以及时发现滞留在肉块内的断针。然而，传统的兽用针头使用的 304不锈钢制成的针头管不易被金属探测器检测到。 In order to find broken needles, many slaughterhouses or food inspection agencies use metal detectors to detect the slaughtered meat pieces after slaughtering, and to find broken needles trapped in the meat pieces. However, needle tubes made of 304 stainless steel used in traditional veterinary needles are not easily detected by metal detectors.

针对这一问题，很多专利都对针头管的制作材料进行了选择或改进，例如美国专利号 6,599,276，美国专利号 6,488,668等，都提供了制造针头然而，这些专利的技术方案思路都是局限于针头管材料上，都是为了提高断针进入肉体后的可检测性。也就是说，这些技术方案的实施，无法防止断针进入肉体。发明内容 In response to this problem, many patents have selected or improved the material of the needle tube. For example, U.S. Patent No. 6,599,276, U.S. Patent No. 6,488,668, etc., all of which provide needles. However, the technical solutions of these patents are limited to needles. The tube material is designed to improve the detectability of the broken needle after entering the body. That is to say, the implementation of these technical solutions cannot prevent broken needles from entering the body. Summary of the invention

本发明提供一种防脱离兽用针头，以解决现有技术中的兽用针头的针头管部分在折断后容易进入动物肉体内的问题。为解决上述技术问题，本发明提供一种防脱离兽用针头，包括针头座、与针头座相连接的针头管，及至少一个柔性连接装置，由柔性材料制成，一端与所述针头管相连接，另一端与所述针头座相连接。 The present invention provides a needle for preventing detachment from the veterinary to solve the problem that the needle tube portion of the veterinary needle in the prior art easily enters the body of the animal after being broken. In order to solve the above technical problem, the present invention provides a needle for preventing detachment from a veterinary, comprising a needle holder, a needle tube connected to the needle holder, and at least one flexible connecting device, which is made of a flexible material, and one end is opposite to the needle tube Connected, the other end is connected to the needle holder.

本发明提供的兽用针头，通过一个柔性连接装置将针头管和针头座柔性连接起来，这样，由于柔性连接装置的材料特性，不会因为受力而折断，因此，当针头管受力折断后，还能通过所述柔性连接装置与所述针头座相连，而不至于完全脱离。这就保证了断针不会进入动物体内，并且，当动物挣扎奔跑时，断针可通过该柔性连接装置的牵引而从动物体内拔出。这不仅减轻了动物的痛苦，也减轻了屠宰场或食品检测机构的工作量。附图概述 The veterinary needle provided by the invention flexibly connects the needle tube and the needle holder through a flexible connecting device, so that due to the material property of the flexible connecting device, the needle tube is not broken due to the force, and therefore, when the needle tube is broken by force It can also be connected to the needle holder by the flexible connecting means without being completely detached. This ensures that the broken needle does not enter the animal, and that when the animal is struggling to run, the broken needle can be pulled out of the animal through the traction of the flexible connecting device. This not only reduces the suffering of animals, but also reduces the workload of slaughterhouses or food testing agencies. BRIEF abstract

图 1为传统的兽用针头示意图。 Figure 1 is a schematic view of a conventional veterinary needle.

图 2为根据本发明的一个实施例所示的兽用针头的剖视图。 2 is a cross-sectional view of a veterinary needle shown in accordance with an embodiment of the present invention.

图 3为根据本发明的一个实施例所示的兽用针头的剖视图。本发明的最佳实施方式 3 is a cross-sectional view of a veterinary needle shown in accordance with an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

如图 1所示，传统的兽用针头 100，包括针头管 10和针头座 20，其中所述针头管 10具有一个底端 12和用于接触注射部位的尖端 14。 As shown in Fig. 1, a conventional veterinary needle 100 includes a needle cannula 10 and a needle hub 20, wherein the needle cannula 10 has a bottom end 12 and a tip end 14 for contacting the injection site.

其中，所述针头管 10，从所述尖端 14向所述底端 12延伸有一个剌入部 102，在注射时所述剌入部 102进入注射部位内；从所述底端 12向所述尖端 14延伸有一个接合部 106，所述针头管与针头座连接组成针头时，所述接合部 106固定在所述针头座 20内；所述接合部 106与所述剌入部 102 之间延伸形成一个暴露部 104。一般来说，针头管和针头座是在位置 A处通过铆接的方式连接在一起组成针头组件。 Wherein the needle cannula 10 extends from the tip end 14 toward the bottom end 12 with an intrusion portion 102 that enters the injection site at the time of injection; from the bottom end 12 to the tip end 14 Extending a joint portion 106, the joint portion 106 is fixed in the needle hub 20 when the needle tube is coupled to the needle hub to form a needle; the joint portion 106 and the intrusion portion 102 extend to form an exposure Part 104. Typically, the needle and needle hubs are joined together at position A by riveting to form a needle assembly.

当然，在实际使用中，由于注射力度不同，针头管剌入注射部位形成剌入部的深度也有所不同，但只要是在常规注射中，进入动物体内的针头管部分，都可以理解为本发明所指的剌入部 102。暴露部 104—般是指在常规注射中不会进入动物体内，而是暴露在视线范围内的部分。 Of course, in actual use, the depth of the needle tube into the injection site to form the intrusion portion varies depending on the injection strength, but as long as it is in the conventional injection, the portion of the needle tube that enters the animal body can be understood as the present invention. Refers to the intrusion portion 102. The exposed portion 104 generally means Conventional injections do not enter the body of the animal, but are exposed to the line of sight.

申请人在实践中发现，在注射时，由于动物负痛挣扎时容易将针头管折断，针头管折断的部位全部是发生在接合部 106与暴露部 104交界的位置，也就是位置 A附近。这是因为该位置是针头管的受力点，当针头管受力横向摆动时，由于针头座固定不动，因此，受力点承受了很大的压力，容易发生折断。 Applicants have found in practice that at the time of injection, the needle tube is easily broken when the animal is struggling with pain, and the broken portion of the needle tube is all at the boundary between the joint portion 106 and the exposed portion 104, that is, near the position A. This is because the position is the force point of the needle tube. When the needle tube is laterally oscillated by force, since the needle holder is fixed, the force receiving point is subjected to a large pressure and is likely to be broken.

针头管折断后，由于剌入部 102已经进入到动物体内，因此，折断后的针头管会顺着针眼逐渐完全进入到动物肉体内。 After the needle tube is broken, since the intrusion portion 102 has entered the animal body, the broken needle tube gradually enters the animal body gradually along the needle eye.

通过进一歩的分析，申请人发现，如果能阻止折断后的针头管从针头组件中脱离，则可以有效的避免断针进入动物体内。 Through further analysis, the Applicant has found that if the broken needle can be prevented from escaping from the needle assembly, the needle can be effectively prevented from entering the animal.

因此，本发明的技术方案思路就是在针头管和针头座之间增加至少一个柔性连接装置，该装置由柔性材料制成，一端与所述针头管相连接，另一端与所述针头座相连接。这样，由于柔性连接装置不会受力折断，当针头管折断后，仍会连接于柔性连接装置，而又由于柔性连接装置的另一端连接于针头座，因此，防止了断针的脱离。 Therefore, the technical idea of the present invention is to add at least one flexible connecting device between the needle tube and the needle holder, the device is made of a flexible material, one end is connected to the needle tube, and the other end is connected to the needle holder. . Thus, since the flexible connecting means is not broken by force, when the needle tube is broken, it is still connected to the flexible connecting means, and since the other end of the flexible connecting means is connected to the needle holder, the breakage of the broken needle is prevented.

请参考图 2，根据本发明的一个实施例，在针头管 10和针头座 20之间，增加了一个柔性连接装置 30，该装置 30的一端与所述针头管相连接，优选的，该连接点位于针头管的暴露部 104的范围内，靠近接合部的位置; 另一端与针头座相连接。 Referring to FIG. 2, in accordance with an embodiment of the present invention, a flexible connecting device 30 is added between the needle tube 10 and the needle holder 20. One end of the device 30 is coupled to the needle tube. Preferably, the connection The point is located within the range of the exposed portion 104 of the needle cannula, near the position of the joint; the other end is coupled to the needle hub.

根据本发明的实施例，所述柔性连接装置可以是弹性连接装置，例如弹簧或弹性橡胶。 According to an embodiment of the invention, the flexible connecting means may be an elastic connecting means such as a spring or an elastic rubber.

根据本发明的实施例，所述柔性连接装置可以是软性连接装置，例如金属链或连接绳。 According to an embodiment of the invention, the flexible connecting means may be a flexible connecting means such as a metal chain or a connecting cord.

其中，所述柔性连接装置可以通过悍接或铆接的方式与针头管和针头座固定连接，也可以滑槽等方式与针头管和针头座滑动连接，本发明对此不作限制。 The flexible connecting device can be fixedly connected to the needle tube and the needle holder by means of splicing or riveting, or can be slidably connected to the needle tube and the needle holder by a sliding groove or the like, which is not limited in the present invention.

请参考图 3，根据本发明的另一个实施例，在针头管的暴露部 104的范围内，不仅可以连接一个柔性连接装置 30，还可以在针头管外壁上设计至少一个阻挡件 1042，所述阻挡件凸起于所述针头管外壁，以阻止所述针头管在折断时完全进入所述注射部位内。 Referring to FIG. 3, in accordance with another embodiment of the present invention, at the exposed portion 104 of the needle cannula In the range, not only a flexible connecting device 30 but also a blocking member 1042 can be designed on the outer wall of the needle tube, the blocking member protruding from the outer wall of the needle tube to prevent the needle tube from fully entering when broken. Within the injection site.

这样，即使该柔性连接装置 30 由于某种原因而断裂或脱落，断针由于阻挡件 1042的作用，也不会完全进入动物体内，起到了双重保险的目的。 Thus, even if the flexible connecting device 30 is broken or peeled off for some reason, the broken needle does not completely enter the animal body due to the action of the blocking member 1042, and serves the purpose of double insurance.

所述阻挡件 1042的形状，既可以是一个凸起点、凸块，也可以是带状物或条形物，本发明对此不作限制。 The shape of the blocking member 1042 may be a convex point, a bump, or a strip or a strip, which is not limited in the present invention.

根据本发明的一个实施例，所述阻挡件为环形或部分环形，横向围绕在针头管外壁上。 According to an embodiment of the invention, the blocking member is annular or partially annular and laterally surrounds the outer wall of the needle cannula.

根据本发明的一个实施例，所述阻挡件与所述针头管外壁一体成型。也就是说，针头管制造模具本身即具有一个凸起的部分，形成阻挡件。 According to an embodiment of the invention, the blocking member is integrally formed with the outer wall of the needle tube. That is to say, the needle tube manufacturing mold itself has a convex portion to form a stopper.

根据本发明的一个实施例，所述阻挡件可以通过悍接或铆接的方式固定连接于所述暴露部的针头管外壁上。 According to an embodiment of the invention, the blocking member may be fixedly attached to the outer wall of the needle tube of the exposed portion by means of splicing or riveting.

根据本发明的一个实施例，所述阻挡件可以滑动连接于所述暴露部的针头管外壁上。例如，可以通过一个弹性卡环，卡装在针头管外壁上。由于针头管折断后的断口一般会被不规则的压扁，因此，压扁部分的端口外径大于针头管的平均外径，因此，即使是滑动连接的阻挡件也不会滑出针头管。 According to an embodiment of the invention, the blocking member is slidably coupled to the outer wall of the needle tube of the exposed portion. For example, it can be snapped onto the outer wall of the needle tube by an elastic snap ring. Since the fracture of the needle tube is generally irregularly crushed, the diameter of the port of the flattened portion is larger than the average outer diameter of the needle tube, so that even the slidingly connected stopper does not slide out of the needle tube.

根据本发明的一个实施例，所述阻挡件上可以涂覆有区别于注射部位的颜色，例如醒目的亮黄色，这样可以很方便的在动物群中发现哪些动物身上还悬挂着折断的针管。 According to an embodiment of the invention, the barrier member may be coated with a color different from the injection site, such as a bright yellow color, so that it is convenient to find in the fauna which animals are also suspended with a broken needle.

优选的，所述阻挡件位于所述暴露部中靠近接合部的位置。这样既不阻碍剌入部的注射，也便于加工。 Preferably, the blocking member is located in the exposed portion near the joint portion. This does not hinder the injection of the intrusion and facilitates processing.

优选的，所述针头管是由超级铁素体不锈钢材料制成。 Preferably, the needle tube is made of a super ferritic stainless steel material.

优选的，所述针头管由不锈钢材料制成，该不锈钢材料中含有大于 20 wt%的 Cr，微结构为铁素质粒，且铁素质粒大于 40 wt%。这样，即使针头管进入动物体内，也很容易被检测到，以达到多重保险的目的。 Preferably, the needle tube is made of a stainless steel material containing more than 20 wt% of Cr, a microstructure of ferritin, and a ferritic plasmid of greater than 40 wt%. In this way, even if the needle tube enters the animal body, it can be easily detected to achieve the purpose of multiple insurance.

优选的，所述不锈钢材料中的 Cr含量大于 25 wt%，且 45 wt%，以在硬度、冶炼成本以及可检测性之间获得平衡。 Preferably, the Cr content in the stainless steel material is greater than 25 wt%, and 45 wt%, to achieve a balance between hardness, smelting cost, and detectability.

优选的，所述不锈钢材料中进一歩包含 0.01- 5.0 wt%的 Mo，以增加韧性。 Preferably, the stainless steel material further contains 0.01 to 5.0 wt% of Mo to increase the toughness.

优选的，所述不锈钢材料中进一歩包含 Mo和 N， E. Cr + 3.3 Mo + 22 N > 35 wt%。 Preferably, the stainless steel material further comprises Mo and N, E. Cr + 3.3 Mo + 22 N > 35 wt%.

优选的，所述不锈钢材料中含有的 C和 N的总和 ≤0.10 wt%。工工业业实实用用性性 Preferably, the sum of C and N contained in the stainless steel material is ≤ 0.10 wt%. Industrial and practical use

很很明明显显，，本本发发明明提提供供的的防防脱脱离离兽兽用用针针头头，，通通过过在在针针头头管管和和针针头头座座之之间间增增加加至至少少一一个个柔柔性性连连接接装装置置，，将将针针头头管管和和针针头头座座柔柔性性连连接接起起来来。。由由于于柔柔性性连连接接装装置置的的材材料料特特性性，，不不会会因因为为受受力力而而折折断断，，因因此此，，当当针针头头管管受受力力折折断断后后，，还还能能通通过过所所述述柔柔性性连连接接装装置置与与所所述述针针头头座座相相连连，，而而不不至至于于完完全全脱脱离离。。这这就就保保证证了了断断针针不不会会进进入入动动物物体体内内，，并并且且，，当当动动物物挣挣扎扎奔奔跑跑时时，，断断针针可可通通过过该该柔柔性性连连接接装装置置的的牵牵引引而而从从动动物物体体内内拔拔出出。。这这不不仅仅减减轻轻了了动动物物的的痛痛苦苦，，也也减减

It is very obvious that the present invention provides a needle-proof head for preventing and detaching from the beast and veterinary, and passes between the needle head tube and the needle head holder. The increase is added to at least one flexible flexible connection device, and the needle needle tube and the needle head seat are flexibly connected. . Due to the special characteristics of the material of the material placed in the connection device due to the flexible flexibility, it will not be broken due to the force being applied, and therefore, the needle head tube After the tube is broken by the force, it can also be connected to the needle head seat by the flexible coupling connection device, instead of being connected It will not be completely detached. . This guarantees that the broken needle will not enter the body of the animal, and, and, when the animal is struggling to run, the needle can be passed through. The softness is pulled out from the body of the driven animal object by the pulling of the connecting device. . This is not only to reduce the pain and pain of the animals, but also to reduce

Claims

Claim

1. A needle for preventing detachment from veterinary, comprising:

a needle holder;

a needle tube having a tip end portion and a bottom end portion through which the bottom end portion is coupled to the needle hub; and

At least one flexible attachment means, made of a flexible material, has one end connected to the needle cannula and the other end being coupled to the needle hub.

2. The veterinary needle according to claim 1, wherein said needle tube has an intrusion portion extending from said tip end toward said bottom end, said intrusion portion entering an injection site at the time of injection; Extendingly, the end portion has an engaging portion. When the needle tube is coupled with the needle holder to form a needle, the engaging portion is fixed in the needle holder; and the joint portion and the intrusion portion extend to form an exposure. a connecting end of the flexible connecting device and the needle tube, located in a range of the exposed portion.

The veterinary needle according to claim 1, wherein the connecting end of the flexible connecting means and the exposed portion of the needle tube is located at a position close to the engaging portion within the range of the exposed portion.

4. A veterinary needle according to claim 1 wherein said flexible attachment means is a resilient attachment means.

5. A veterinary needle according to claim 4, wherein said resilient attachment means is a spring.

The veterinary needle according to claim 4, wherein the elastic connecting means is an elastic rubber.

7. A veterinary needle according to claim 1 wherein said flexible attachment means is a flexible attachment means.

8. A veterinary needle according to claim 7, wherein said flexible connecting means is a metal chain.

9. A veterinary needle according to claim 7, wherein said flexible connecting means is a connecting cord.

10. The veterinary needle according to claim 2, wherein the outer wall of the needle tube of the exposed portion includes at least one blocking member, and the blocking member protrudes from an outer wall of the needle tube to block the needle The head tube completely enters the injection site after breaking.

The veterinary needle according to claim 1, wherein the needle tube is made of a super ferritic stainless steel material.

12. The veterinary needle according to claim 1, wherein the needle tube is made of a stainless steel material containing more than 20 wt% of Cr, the microstructure is a ferritin, and the ferritin is greater than 40 wt. %.